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Overview
Discover the best Ruby jobs tailored for developers at all experience levels on Haystack. Whether you're looking for Ruby on Rails opportunities, backend development roles, or full-stack positions, our curated listings connect you with top tech companies hiring Ruby talent. Start your job search today and advance your career with the latest Ruby jobs available nationwide.
Infrastructure Designer
Stackstudio Digital Ltd.
Norwich
Hybrid
Mid - Senior
ÂŁ500/day - ÂŁ525/day
RECENTLY POSTED
+4

Role / Job Title:Infrastructure DesignerWork Location:Norwich (3 Days)Duration of Assignment:06 MonthsThe RoleAWS Cloud Infrastructure Designer is responsible for designing robust, scalable, secure, and cost efficient cloud architectures on Amazon Web Services.The role focuses on translating business requirements into cloud native infrastructure blueprints, ensuring alignment with best practices such as the AWS Well Architected Framework.Your Responsibilities

  • Design end to end AWS cloud infrastructures including networking, compute, storage, security, and monitoring
  • Create high level and low level architectural diagrams, infrastructure-as-code (IaC) templates, and design documents
  • Evaluate and select AWS services that best fit functional and non functional requirements
  • Build and optimize solutions using IaC tools such as Terraform, AWS CloudFormation, and CDK
  • Ensure solutions adhere to reliability, performance, security, and cost optimization best practices
  • Implement cost efficient designs leveraging autoscaling, serverless, spot instances, and managed services
  • Work with solution architects, developers, security teams, and operations teams to ensure design feasibility
  • Translate complex technical capabilities into clear concepts for non technical stakeholders
  • Provide architectural guidance during project lifecycle-from conceptualization to production rollout
  • Implement cloud security architecture covering IAM, VPC security, encryption, IAM roles, and compliance controls
  • Ensure adherence to regulatory standards (ISO 27001, PCI DSS, GDPR, etc.) depending on industry needs

Your ProfileEssential Skills / Knowledge / Experience

  • Experience in architecting and building solutions to support highly available and Data solutions, batch processes, services and API’s
  • Understanding of IAM policies and statements
  • AWS based capacity management and performance logging and monitoring solutions
  • AWS cost management
  • Scripting skills (Python, Ruby, Powershell, BASH)
  • Data Vault
  • Experience of writing/using terraform or AWS CDK at scale
  • Postgres SQL, Oracle MySQL/Aurora RDS, Redshift and other database/NoSQL Tech

Desirable Skills / Knowledge / Experience

  • AWS solution architect associate certification or equivalent preferred
  • Awareness of Redshift, AWS Services
  • Experience in Cloud based projects
  • Snowflake
Ruby Developer
Proactive Appointments
London
Hybrid
Mid - Senior
ÂŁ70,000 - ÂŁ80,000
RECENTLY POSTED

Ruby on Rails Developer

Hybrid work 2/3 days onsite per month

We are seeking an experienced Ruby on Rails Developer to join our clients growing engineering team. This is an exciting opportunity for a passionate developer who thrives in dynamic environments and enjoys solving complex technical challenges. You will play a key role in designing, building, and maintaining high-performing, scalable applications that directly impact our customers and business operations.

In this role, you’ll work closely with cross-functional teams to develop new features, enhance existing systems, and ensure our platform remains stable and efficient. Your deep understanding of Rails architecture, PostgreSQL optimisation, and API design will be essential as you contribute to ongoing development projects.

If you enjoy collaborating in Agile/Scrum environments, value clean code, and are eager to work with modern tooling, cloud services, and containerised deployments, we’d love to hear from you.

Key Skills

  • 4+ years’ experience with Ruby on Rails
  • Strong understanding of OOP & Rails architecture
  • Extensive experience with PostgreSQL (performance tuning, complex queries)
  • Background job processing with Sidekiq & Redis
  • Expertise in RESTful APIs, JSON, JWT, SSO
  • Experience with AWS & Docker
  • Production system support & troubleshooting
  • Strong communication skills & Agile/Scrum experience

Ruby on Rails Developer

Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted.

Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation

We take our obligations to protect your personal data very seriously. Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website

IT Security Engineer
Spectrum IT Recruitment
Basingstoke
Hybrid
Mid - Senior
ÂŁ50,000 - ÂŁ55,000
RECENTLY POSTED

Own vulnerability management and help shape day to day security across a European environment, working hands on with Microsoft security tools and internal IT teams to drive real remediation.

IT Security Engineer
Basingstoke, Hampshire
Hybrid working: 3 days in the office
Salary up to 55,000

This is a broad, hands on security role in a small, collaborative team where you will take the lead on vulnerability management while also supporting wider security activity across the business.
You will work closely with infrastructure, end user computing and other IT teams to identify issues, coordinate remediation and help strengthen the overall security posture. It is well suited to someone who already has solid security experience and wants a varied role with scope to keep developing.

What you will be doing

  • Lead vulnerability management activity across systems and endpoints
  • Track remediation work and work closely with internal teams to make sure actions are completed
  • Help strengthen cloud and endpoint security controls across the Microsoft environment
  • Support incident response activity and security investigations
  • Maintain and improve security configurations across Microsoft 365 and related platforms
  • Contribute to identity and access management, including least privilege, MFA and access controls
  • Support email security, including policy configuration, threat investigation and remediation
  • Assist with the adoption of recognised security controls and good practice across the business
  • Help automate repeatable security tasks where appropriate

What they are looking for

  • Commercial experience across the Microsoft security stack, especially Defender, Intune, Azure and Entra ID / Azure AD
  • Hands on experience with vulnerability management, patching or remediation workflows
  • Good understanding of broader IT infrastructure, networking and Active Directory
  • Experience supporting security incidents or investigations
  • Clear communication skills and the confidence to work with different teams across the business
  • A proactive, practical and collaborative approach

Helpful extras

  • Rapid7 experience
  • Email security experience
  • PowerShell scripting
  • Exposure to security frameworks such as CIS or NIST
  • Relevant certifications such as AZ-500, MS-500, SC-100 or similar

Why this role could appeal

  • Broad, hands on security role with real variety
  • Opportunity to work closely with an experienced manager and develop further
  • Chance to make an immediate impact in a business where security is an active priority
  • Hybrid working with a Basingstoke base and free parking

Benefits

  • 23 days holiday plus bank holidays, rising to 25 days
  • 8% pension contribution
  • Life assurance
  • healthcare scheme
  • Free car parking

Apply no or contact Ruby Calver at Spectrum IT Recruitment

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Senior SRE
Randstad Technologies
Not Specified
Fully remote
Senior
ÂŁ30/hour - ÂŁ32/hour
RECENTLY POSTED
+3

Location: UK - 100% Remote

Duration: 12-Month Initial Contract

Working Hours: 11:00 AM - 7:00 PM (Mostly)

The Mission

Our client is looking for a Senior SRE to lead the design and evolution of a global observability stack that supports millions of customer devices across 8 international data centers. This isn’t just about monitoring; it’s about building the high-performance, distributed systems that ensure our global cloud remains performant while scaling 2-3x every year.

The Scale of the Challenge

As a Lead on the Observability team, you will dive into projects that define “large-scale”:

  • Metrics at Scale: Design and scale a Prometheus architecture to handle 100M+ active series and beyond.
  • Petabyte Logging: Operate high-performance ElasticSearch clusters holding 2000+TB of data.
  • High-Throughput Pipelines: Grow data pipelines built on Kafka, handling hundreds of thousands of events per second.
  • Engineering Autonomy: Write libraries and APIs (Ruby, Go) that provide engineers with self-service access to monitoring and logging systems.
  • Infrastructure as Code: Leverage Terraform and Ansible to deploy across both public and private cloud environments.

What We’re Looking For

  • Distributed Systems Expert: 5+ years of experience operating mid-to-large scale systems on Linux (Debian/Ubuntu)-whether on VMs or bare metal.
  • The “S” in SRE: 2+ years of development experience with Ruby, Go, Python, or Scala. You prefer building tools to manual toil.
  • Observability Specialist: Direct experience with Prometheus/Thanos/Cortex, ELK (Elasticsearch, Logstash, Kibana), Kafka, and Grafana.
  • Automation Mindset: Strong proficiency in Terraform, Ansible, and Consul for infrastructure orchestration.
  • Problem Solver: You are comfortable diving into unfamiliar codebases and have a deep understanding of software engineering best practices.
  • Availability: You are comfortable being part of a production on-call rotation and working a shift that primarily covers 11:00 AM to 7:00 PM UK time.

If you are interested then let me know and we can have a confidential chat. You can also drop me your CV and I will get back to you on call directly to discuss the role further.

Randstad Technologies is acting as an Employment Business in relation to this vacancy.

SRE - Site Reliability Engineer
Randstad Technologies Recruitment
London
Fully remote
Senior
ÂŁ55/hour - ÂŁ62/hour
RECENTLY POSTED
+7

Senior Site Reliability Engineer (Observability)

Location: London/UK (Remote)

Contract: 12 Months Initial

Day rate : 55 Per Hour - 62 Per Hour Inside IR35

Job Overview

We are looking for a Senior Site Reliability Engineer with strong experience in Observability, Monitoring and Distributed Systems to support large-scale cloud infrastructure supporting millions of devices globally. The role focuses on building and scaling monitoring, logging and alerting platforms to ensure high availability and performance of cloud services.

Responsibilities

  • Design, deploy and scale observability platforms
  • Manage and scale Prometheus monitoring systems
  • Deploy and maintain large Elasticsearch clusters
  • Build and maintain data pipelines using Kafka
  • Develop alerting and monitoring frameworks
  • Automate infrastructure using Terraform and Ansible
  • Develop tools and scripts using Python, Go, Ruby or Bash
  • Work with Linux systems (Debian/Ubuntu)
  • Participate in on-call rotation
  • Improve system reliability, performance and scalability

Required Skills

  • 5+ years experience in Site Reliability Engineering / DevOps
  • Strong Linux systems experience
  • Observability and Monitoring tools experience
  • Prometheus, Grafana, ELK Stack (Elasticsearch, Logstash, Kibana)
  • Kafka
  • Terraform / Infrastructure as Code
  • Ansible / Configuration Management
  • Programming experience (Python, Go, Ruby or Bash)
  • Distributed systems and cloud infrastructure experience

This is an urgent vacancy where the hiring manager is shortlisting for an interview immediately. Please apply with a copy of your CV or send it khushboo. Co. uk

Randstad Technologies is acting as an Employment Business in relation to this vacancy.

Senior Support Engineer
Carebit Health Limited
London
Fully remote
Senior
ÂŁ50,000 - ÂŁ60,000
RECENTLY POSTED
+1

About Carebit

Carebit is a young, design-led healthcare technology company helping over 2,000 private doctors across the UK run their practices more effectively and efficiently, with our web and mobile platform, and hundreds of thousands of their patients. For too long, medical software has been clunky, user-hostile and complicated, and we are changing that. Several customers have independently described us as the Apple of practice management software .

We are a bootstrapped, profitable and remote-first company of 25 people with 6 Full Stack Engineers including the company s founder, Dominic. Having been remote from day one, we fully believe in its benefits. We do have a lovely office in London by the river for in-person collaboration when required, but this is not mandatory as we know some like in-person working and some prefer fully remote.

About You

We re looking for a Senior Support Engineer who thrives on solving real customer problems through hands-on technical work. You ll sit at the intersection of our support, engineering, and data migration teams a true technical generalist who enjoys variety.

This is a great fit for a strong Developer who wants to take full ownership of debugging, fixing, and enhancing real-world product issues that impact doctors and patients.

You ll work on:

  • Investigating and resolving bugs or issues raised by our team of Customer Support Specialists.
  • Making small-to-medium feature tweaks (e.g. modifying exports, adjusting logic).
  • Writing Ruby scripts and jobs for post-migration data cleanup or updates.
  • Collaborating with Developers and support staff to triage, prioritise, and resolve issues.
  • Delivering small fixes to production regularly and reliably.

What we are looking for:

  • Strong experience with Ruby on Rails (Rails 7, Ruby 3.4).
  • Proficiency with React, TypeScript / JavaScript, and PostgreSQL.
  • Comfort working in a Linux-based environment (AWS ECS, command line).
  • Great debugging and troubleshooting skills you enjoy getting to the root of problems.
  • Fluent, friendly communication especially with non-technical users.
  • A proactive, independent mindset you get things done without handholding.
  • You must be located within GMT / BST 3 time zones and available during UK working hours (typically 9am 5:30pm).

Nice to have:

  • Sysadmin experience.
  • Experience supporting SaaS products or working closely with support teams.

Why join Carebit

  • Fully remote with flexible working, based around UK hours.
  • Meaningful product used by thousands of doctors and patients every day.
  • Calm, supportive, and highly autonomous culture.
  • Direct involvement in product decisions and fixes that impact real people.
  • Competitive salary.
Senior Technical Architect
Cognizant
London
Hybrid
Senior
Private salary
RECENTLY POSTED

Hybrid working model – remote and on-site as required

Overview

Ministry of Justice is seeking an experienced Senior Technical Architect to support Legal Aid Agency on a temporary consultancy engagement. The role provides architectural leadership across digital services that enable both citizens and legal professionals to access and manage legal aid services.

You will work within multidisciplinary delivery teams and act as a senior technical partner, shaping architectural strategy, informing key technology decisions, and ensuring services are secure, scalable and aligned to government digital and technology standards. This position demands a strong blend of technical breadth, stakeholder engagement, and the ability to influence across organizational boundaries.

Role Purpose

The Senior Technical Architect will analyze the Legal Aid Agency’s technology landscape, identify opportunities for improvement, and define architectures that support long-term digital transformation. You will collaborate closely with developers, SRE and security specialists, product managers, user researchers, designers, and delivery managers to guide technical direction across multiple service lines.

This role requires clear communication, structured thinking, and the ability to articulate technical concepts to both specialist and non-specialist audiences. You will also support the development of the architecture community, providing guidance, mentorship, and technical leadership across teams.

Key Responsibilities

Strategic Architecture & Technical Leadership

  • Work with the Lead Technical Architect to define and maintain the long-term architectural roadmap for the Legal Aid Agency’s digital systems.
  • Ensure product and delivery teams follow strategic architectural principles, integration patterns, and technology direction.
  • Maintain a holistic view of the end-to-end service ecosystem, identifying technical dependencies, risks, and opportunities for improvement.

Stakeholder Engagement & Communication

  • Explain complex architectural concepts in clear terms to senior stakeholders, enabling informed decision-making.
  • Facilitate alignment between technical and business leaders, balancing strategic direction with delivery needs.
  • Represent architecture in governance forums, supporting prioritization, risk discussions, and assurance reviews.

Design, Analysis & Governance

  • Create high-quality architectural artefacts including diagrams, data flows, integrations, future-state designs, and migration pathways.
  • Evaluate technology options and assess impacts across infrastructure, data, security, and operational areas.
  • Contribute to architectural patterns, principles, and standards to support consistency across the digital directorate.

Technical Oversight & Support

  • Provide expert oversight to ensure services are robust, secure, scalable, and maintainable.
  • Mentor and coach architects, tech leads, and senior engineers, supporting capability development.
  • Assist with recruitment and community-of-practice initiatives within the architecture and engineering functions.

Culture & Ways of Working

  • Promote open dialogue, collaborative problem solving, and continuous learning within the Legal Aid Agency’s technical community.
  • Champion inclusive working practices and support efforts to grow diversity across engineering roles.

Candidate Requirements

Essential Skills & Experience

  • Significant experience as a technical or solution architect in complex digital or enterprise environments.
  • Strong software engineering foundation, with practical knowledge of modern application architectures (e.g., microservices, APIs, distributed systems).
  • Proven ability to design and document architectures using visual modelling techniques such as C4, UML, and data flow diagrams.
  • Hands-on experience with at least one major cloud provider, ideally AWS, including Infrastructure as Code, platform services, networking, and security controls.
  • Deep understanding of secure and resilient system design, including authentication patterns, threat modelling, performance considerations, and observability.
  • Familiarity with Ruby, Python, or Java, and modern development practices such as CI/CD, TDD, and containerization.
  • Experience guiding technology decisions, evaluating options, and influencing senior stakeholders.
  • Strong understanding of data modelling, integration approaches, API design, messaging patterns, and interoperability challenges.
  • Exceptional communication skills, with the ability to simplify complex topics and build consensus across diverse groups.
  • Ability to work across the full delivery lifecycle, from discovery through implementation and service transition.

Desirable Skills & Experience

  • Experience with enterprise ERP platforms (e.g., Oracle E-Business Suite).
  • Knowledge of UK government digital service standards, architecture frameworks, and assurance processes.
  • Understanding of Domain-Driven Design or event-driven architectural approaches.
  • Exposure to SRE, platform engineering, or infrastructure architecture disciplines.
  • Experience contributing to architectural communities of practice or governance forums.
  • Prior consultancy experience working across multiple product teams or client environments.

Personal Attributes

  • Strong systems thinking and analytical capability, with the ability to understand complex environments quickly.
  • Comfortable operating in ambiguous or fast-changing environments while maintaining architectural clarity.
  • Collaborative, empathetic, and committed to building trust with stakeholders at all levels.
  • Dedicated to continuous learning, technical curiosity, and staying current with emerging technologies.
  • Pragmatic and outcome-focused, balancing long-term architectural quality with short-term delivery constraints.

Technical Environment

  • The assignment covers a diverse mix of modern cloud-native services and legacy enterprise platforms. Exposure to some of the following areas would be beneficial:
  • Modern languages and frameworks including Ruby, Java, and Python
  • AWS cloud services, Infrastructure as Code, platform as a service tooling
  • Engineering practices such as DDD, TDD, CI/CD, automated testing and Git workflows
  • Multi-tier platform strategies including centralized data and business logic layers
  • Enterprise Oracle software including ERP components
  • Mac-based development environments and public GitHub repositories

Our Values

We are committed to a culture built on purpose, transparency, collaboration, and respect. We welcome applicants from all backgrounds and support an inclusive environment where people can thrive.

Senior Developer
Spectrum IT Recruitment
Southampton
Hybrid
Senior
ÂŁ55,000 - ÂŁ60,000
RECENTLY POSTED

Work across both legacy and modern Microsoft environments and help lead a genuine migration programme rather than just maintain old systems.

The business is growing and needs an experienced developer who can help move a core platform forward. Some of the estate is still in VB.NET, but the direction of travel is clear: modernising the codebase, improving architecture and helping drive the shift towards a more modern C# and .NET environment, with Azure and better engineering practices playing a bigger part.

You would be joining a software team that supports applications used in a regulated healthcare setting. That means the work matters, but it also means security, reliability and data handling standards need to be taken seriously.

Senior .NET Developer
60,000
Remote with quarterly office visits

This role is mainly back-end focused and would suit someone with strong C# / .NET experience who is also comfortable working with VB.NET. The split is roughly 75% C# / 25% VB.NET, so this is not purely legacy support. The real focus is helping drive the migration from older VB.NET systems into a more modern C# and .NET architecture.

You would be joining an established team of circa 10 engineers

What matters most:

  • strong commercial C# / .NET experience
  • VB.NET experience
  • solid back-end development skills
  • SQL / database understanding
  • ability to improve and modernise existing systems

Nice to have:

  • Azure
  • CI/CD
  • React
  • Xamarin / .NET MAUI

The applications sit in a regulated healthcare environment, so reliability, security and good engineering judgement matter.

Package includes:

  • Salary up to 60,000
  • Remote working
  • Quarterly office visits
  • 25 days holiday + bank holidays
  • 5% pension
  • Life assurance
  • Sick pay
  • Private medical after probation

Apply now for more information please contact Ruby Calver at Spectrum IT Recruitment.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Ruby on Rails Backend Engineer
Rise Technical Recruitment
London
Hybrid
Mid - Senior
ÂŁ60,000 - ÂŁ80,000
RECENTLY POSTED
+3

Senior Ruby on Rails Engineer
Fulham (2/3 days on-site)
60,000 - 80,000 + Private Healthcare & Benefits

This is an excellent opportunity for a Mid-to-Senior Ruby on Rails Engineer to join a start-up in a role where you will play a major part in future developments.

This company is a Series A startup, breaking down barriers and making the world more accessible for everyone. Originally founded within the UK transport sector, they have developed award-winning, innovative solutions that prioritise dignity, safety, and inclusion for millions of users.

In this varied role, you will move beyond feature development to focus on the stability, performance, and observability of the core Rails ecosystem. You will act as a trusted backend partner for Product and Platform teams, stabilising third-party integrations, improving background job efficiency, and utilising architectural documentation like C4 models to ensure long-term scalability.

The ideal candidate will be a seasoned Ruby on Rails developer with deep expertise in PostgreSQL and background processing via Sidekiq and Redis. You should be highly proficient in building RESTful APIs, managing JSON serialisation, and implementing secure authentication methods like JWT or SSO. Beyond coding, you will possess knowledge of Docker and AWS, alongside the communication skills required to translate complex technical risks into clear operational priorities.

This is a fantastic opportunity to join a purpose-led business during a period of international scaling. You will have the autonomy to own multiple backend systems, reduce operational risk across global integrations, and play a pivotal role in shaping the architectural future of a platform recognised for its excellence in accessibility and safety.

The Role:

  • Lead the evolution of core Ruby on Rails operational platforms.
  • Optimise PostgreSQL performance and Sidekiq background job efficiency.
  • Manage secure third-party integrations and RESTful API design.
  • Partner with Platform teams on AWS and CI/CD reliability.

The Person:

  • Deep experience with Ruby on Rails and OOP.
  • Expert in PostgreSQL tuning and complex query optimisation.
  • Proficient with Docker, AWS, and containerised deployment workflows.
  • Strong communicator, capable of leading production incident responses.

Reference Number: BBBH(phone number removed)

Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles.

The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client.

We are an equal opportunities company and welcome applications from all suitable candidates.

IoT/IIoT Cybersecurity Engineer
TUV SUD Limited
Not Specified
Hybrid
Junior - Mid
Private salary
RECENTLY POSTED
+2

At T V S D we are passionate about technology. Innovations impact our daily lives in countless ways, and we are dedicated to being a part of that progress. We test, we audit, we inspect, we advise. We never stop challenging ourselves for the safety of society and its people. We breathe technology, we strive for professional excellence, and we leave a mark. We take the future into our hands. We are T V S D.

We are looking for an IoT/IIoT cybersecurity engineer, in a hybrid home and laboratory position, headquartered in the UK to strengthen our IOT cybersecurity team. Your primary objective will be to deliver cybersecurity assessment and certification evaluation of products and components. Examples of the tasks, include, but are not limited to; assessment to latest cybersecurity standards, penetration testing (IoT and WebApp), threat modelling, firmware investigation, code analysis etc.

This service will be provided to external clients, who will predominantly be manufacturers of wired and wireless IoT/IIoT devices. You will be part of a dynamic, professional global team whose core values include operating with integrity, being solutions orientated and being committed to building and sustaining long-term relationships with our customers.

You will regularly engage with customers and attend to customer requirements and, using your technical expertise, you will contribute to the development and scaling of a robust product certification framework. Your role will include testing products as well as contributing to the development of an evolving and dynamic cyber assessment service.

Main Duties & Responsibilities:

  • Perform assessments to the latest cybersecurity regulations, standards and guidelines
  • Perform security reviews and testing of IOT hardware devices, including application design, embedded software, web applications, web services and mobile applications to bespoke test programs and the latest regulatory cybersecurity requirements
  • Hardware penetration testing
  • Skilled in the use of the appropriate software tools used in assessments and penetration
  • Engage with customers, understand their products and assessment requirements, and define bespoke test programs based upon our customer needs
  • Actively contribute to the development of the TUV SUD security program with a focus on IIoT/IoT devices.
  • Participate and contribute on global cybersecurity regulatory standards committees
  • Provide training to customers on the interpretation of regulatory standards and best practice
  • Fluent written and spoken English (other language skills would be desirable).

Essential Criteria:

  • Relevant Cybersecurity qualification, preferably a cybersecurity degree (BSc/MSc/PhD) or equivalent cybersecurity qualification
  • Experience in a penetration testing (SW/HW) or similar offensive security
  • A commitment to customer service excellence.
  • Strong analytical skills and efficient problem solving.
  • Ability to work unsupervised, under pressure and meet deadlines.
  • Creative with strong commitment to quality and excellence.

Desirable Criteria:

  • Assessment experience to EN (Apply online only), EN 18031-x series of standards, NIST 8259, NIST CSF, etc
  • Additional cybersecurity credentials such as OWASP, OSCP, CISSP etc
  • Knowledge of security architecture design and applying regulatory guidance on cybersecurity assessment methodologies for risk management.
  • Practical knowledge with the development and implementation of electronic, network, or data security related controls (encryption, digital signatures, secure boot, access control, password management).
  • Understanding how to implement security activities such as vulnerability and patch management, threat intelligence etc.
  • Hands-on practical knowledge with reverse engineering and/or vulnerability testing tools and techniques.
  • Experience in common scripting languages such as Python, Ruby, LUA, Powershell or BASH and at least one development language e.g. Java, C, C# or similar would benefit the role.
  • Experience in product development and testing.

Further Information:

T V S D in the UK offers a competitive salary and benefits package that includes a minimum of 33 days holiday entitlement (for full-time employees, including public holidays), a contributory Group Personal Pension Plan and a non-contributory Group Life Assurance Scheme. We also offer various Salary Exchange/Sacrifice schemes (buying/selling holiday, cycle to work scheme, pensions), incentive schemes and comprehensive wellbeing support (Employee Assistance Programme, Dental Scheme and Occupational Health services). Dependent on their role, employees may also be eligible for hybrid/permanent home-working, a Company Car/Car Allowance and Private Medical Insurance.

At T V S D, we have employees from more than 100 different countries collaborating together. People of different backgrounds, skills, and pursuing different life goals. Our strength comes from these countless and varied perspectives.

We are committed to be an inclusive and diverse workplace by welcoming people of all backgrounds. We want Diversity & Inclusion (D&I) to be a foundation of our company and create an environment where all our employees can trust they will be treated with respect, regardless of gender, nationality, ethnic background, faith, beliefs, disabilities, age, sexual orientation, or identity. As such, our employees are expected to behave at all times in a manner consistent with T V S D Code of Ethics and Company values.

We firmly believe embedding D&I in the heart of what we do will inherently contribute to the success of T V S D. Click here to find out more about Diversity at T V S D.

Frontend Developer
TXP
London
Hybrid
Junior - Mid
ÂŁ575/day
RECENTLY POSTED

Front-end Developer (Public Sector)

6 Month Contract - ÂŁ575/day Inside IR35

Role Details

* Location: London, Bristol, or Manchester (flexible, most team in London) - minimum 2
days/week onsite at base
* Duration: 6 months | Rate: ÂŁ575/day inside IR35
* Clearance: Active SC preferred (BPSS with SC eligibility minimum accepted)

Required experience:

* Owned frontend deliverables:
* Minimum 2 years: Frontend development experience
* Ruby and Python: Familiarity required, Python preference
* User-centered design focus: Essential approach

Collaboration & Working Style

* Team working: Comfortable collaborating with colleagues
* Independent & proactive: Able to hit ground running within first few weeks (support provided)
* Enthusiasm for learning: Eager to try new things
* Work with back-end developers and designers: Primary collaboration

Accessibility & Design

* WCAG: Knowledge of Web Content Accessibility Guidelines
* Figma experience: Prototyping software experience
* GDS Standards: Knowledge of GDS design systems desirable

Full Stack Developer
ARC IT Recruitment
Not Specified
Fully remote
Mid
ÂŁ50,000 - ÂŁ60,000
RECENTLY POSTED
+1

Full Stack Developer X2 (Mid-Level - React.js, Node.js) - Product Development (Remote, UK-based)

ÂŁ50k - ÂŁ60k

Full Stack Software Developer required to join our client’s growing Product Development team. This is a unique opportunity to work remotely in the UK, contribute to modern digital platforms, and shape the future of our products in a collaborative and progressive tech environment.

As part of their team, you’ll help rebuild and enhance our web platform, Back End systems, and APIs, as well as maintain and improve internal and customer-facing applications already in production.

Key Responsibilities

  • Develop new software products and features using modern engineering practices
  • Maintain and improve existing applications and services
  • Write clean, well-tested, and well-documented code
  • Collaborate closely with other developers through paired or mob programming
  • Contribute to a microservices-based architecture

They work with a variety of technologies. You’ll ideally have experience with some of the following, or be open to learning:

  • JavaScript: React, Node.js, Jest, Cypress
  • Ruby (non-Rails environment) - nice to have
  • AWS: EC2, ECS, Lambda, S3, SQS
  • Databases: MongoDB & PostgreSQL

They are looking for someone who is:

  • Proactive, collaborative, and adaptable
  • Approachable and supportive of colleagues
  • A strong communicator with empathy for others

In return, our client can offer:

  • Fully remote work within the UK
  • A key role in a growing, successful team
  • A chance to make a tangible impact with your ideas
  • Competitive salary and benefits package
  • Exposure to modern tech practices in a progressive environment

Please send through your CV to ARC IT Recruitment for consideration today!

DevOps Engineer, Assistant Vice President
State Street
London
Remote or hybrid
Senior - Leader
Private salary
RECENTLY POSTED
+10

This job is with State Street, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

Role Summary:

We are seeking a skilled DevOps Engineer to collaborate with our development and operations teams to design, implement, and manage scalable infrastructure and deployment pipelines. The ideal candidate will have experience with cloud platforms, CI/CD processes, automation, and monitoring tools, with a strong emphasis on optimizing system performance and ensuring reliable, secure, and efficient deployments. You will work closely with cross-functional teams to build robust, scalable, and secure digital asset products that meet our business and technical requirements.

Role Description:

Design and Implement CI/CD Pipelines:  Develop, maintain, and optimize continuous integration and continuous deployment pipelines to streamline the development and release processes.

Infrastructure Management:  Manage and maintain cloud-based infrastructure on Azure Cloud Platform, including provisioning, configuration, and automation of resources.

Automation and Scripting:  Create and manage automation scripts for deployment, configuration, and monitoring using tools such as Ansible, Terraform, or Puppet.

Monitoring and Troubleshooting:  Implement monitoring solutions to ensure system health and performance. Troubleshoot and resolve issues related to applications, systems, and infrastructure.

Collaboration:  Work closely with development, QA, and operations teams to understand requirements, deliver solutions, and address technical challenges.

Security and Compliance:  Ensure best practices for security, compliance, and data protection across all systems and processes.

Documentation:  Create and maintain clear documentation for infrastructure, deployment processes, and best practices.

Performance Optimization:  Analyze system performance and implement improvements to enhance the efficiency and scalability of applications and infrastructure.

Core/Must have skills :

Proven track record of managing and deploying applications and infrastructure.

Cloud Platforms:  Proficiency in Azure cloud services.

CI/CD Tools:  Experience with Harness, GitLab CI, GitHub Actions, or similar tools.

Configuration Management:  Knowledge of tools such as Ansible, Chef, Puppet, or SaltStack.

Infrastructure as Code:  Experience with Terraform, CloudFormation, or similar tools.

Scripting Languages: Proficiency in scripting languages like Bash, Python, or Ruby.

Containers and Orchestration:  Familiarity with Docker, Kubernetes, or OpenShift.

Version Control Systems:  Experience with Git or other version control systems.

Monitoring and Logging:  Knowledge of monitoring tools like Prometheus, Grafana, ELK Stack, or similar.

Ability to work independently and manage multiple tasks or projects.

Good to have skills

Certifications:  Cloud certifications (AWS Certified DevOps Engineer, Azure DevOps Solutions Expert, etc.) are a plus.

Additional Experience:  Experience with microservices architecture and API management.

About State Street Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success.

We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work-life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most. Join us in shaping the future.

As an Equal Opportunity Employer, we consider all qualified applicants for all positions without regard to race, creed, color, religion, national origin, ancestry, ethnicity, age, disability, genetic information, sex, sexual orientation, gender identity or expression, citizenship, marital status, domestic partnership or civil union status, familial status, military and veteran status, and other characteristics protected by applicable law.

Discover more information on jobs at StateStreet.com/careers

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SRE - Site Reliability Engineer
Randstad Technologies Recruitment
London
Fully remote
Senior
ÂŁ55/hour - ÂŁ62/hour
+7

Senior Site Reliability Engineer (Observability) Location: London/UK (Remote) Contract: 12 Months Initial Day rate : ÂŁ55 Per Hour - ÂŁ62 Per Hour Inside IR35 Job Overview We are looking for a Senior Site Reliability Engineer with strong experience in Observability, Monitoring and Distributed Systems to support large-scale cloud infrastructure supporting millions of devices globally. The role focuses on building and scaling monitoring, logging and alerting platforms to ensure high availability and performance of cloud services. Responsibilities Design, deploy and scale observability platforms Manage and scale Prometheus monitoring systems Deploy and maintain large Elasticsearch clusters Build and maintain data pipelines using Kafka Develop alerting and monitoring frameworks Automate infrastructure using Terraform and Ansible Develop tools and scripts using Python, Go, Ruby or Bash Work with Linux systems (Debian/Ubuntu) Participate in on-call rotation Improve system reliability, performance and scalabilityRequired Skills 5+ years experience in Site Reliability Engineering / DevOps Strong Linux systems experience Observability and Monitoring tools experience Prometheus, Grafana, ELK Stack (Elasticsearch, Logstash, Kibana) Kafka Terraform / Infrastructure as Code Ansible / Configuration Management Programming experience (Python, Go, Ruby or Bash) Distributed systems and cloud infrastructure experienceThis is an urgent vacancy where the hiring manager is shortlisting for an interview immediately. Please apply with a copy of your CV or send it khushboo. pandey @ randstad. Co. uk Randstad Technologies is acting as an Employment Business in relation to this vacancy

Spotlight
Software Engineer
Opencast
Multiple locations
Hybrid
Mid
ÂŁ47,000 - ÂŁ55,000

Ready to work somewhere that cares more about how you build software than how fast you can ship it? At Opencast, we don’t measure developers by the number of tickets you complete. We care about engineering craft, clean design and thoughtful problem-solving. Opencast consultants deliver in complex environments, pairing often and working with others who take pride in doing things properly: TDD, emerging design, refactoring and leaving code better than they found it. We build software we are proud of, and our clients trust us not just to code but to think, challenge and guide. If you value simple and robust solutions and want a role where your judgment matters as much as your keyboard, you will fit right in. The role Software developers at Opencast care about building products right and combine their own experience and approach with our company values. They are tech agnostic, have expertise in agile methodologies, eXtreme programming practices and use industry-leading programming languages to deliver agile transformation. Our approach to software development is collaborative, focused on keeping things simple, and we use test driven development and pair programming as best practice. Working with clients and key stakeholders is a crucial part of a consultancy role. Our developers are inclusive team players that listen, collaborate, can positively challenge and manage expectations when needed but most of all are always willing to teach and help others. Leaving a client with improved ways of working, working technology and a good experience from discovery through to live is the priority. The role is varied, technical, never confined to any one provider or solution and there are always opportunities for learning and development. Requirements Due to the nature of this role, applicants must either currently hold active Security Check (SC) Clearance or be eligible to obtain it. Eligibility typically requires UK citizenship and continuous residence in the UK for the past five years, with no single absence exceeding 28 consecutive days. Experience in delivering digital services for the UK government is highly valuable for many of our projects. Therefore, familiarity with the GDS toolkit will be beneficial. Technical Skills - Expertise in Java or Scala is required - Experience in other languages such as Kotlin, Ruby or Javascript is also valuable - Understanding of Object Oriented Programming - In depth knowledge of concepts and uses of testing - Knowledge or experience of delivering complex services to Government Digital Service (GDS) standards - Being comfortable with new technology, t-shaped and comfortable with ongoing learning and development is key to success - Experience with agile methodology A consultant in software development at Opencast is responsible for: - Delivering in the upkeep of their team’s backlog - Collaborating with the teams testing effort - Leading on the implementation of user stories - Embracing mobbing and pairing - Working with others in a collaborative, multi-disciplinary environment - Contributing to Opencast’s communities of practice Salary £47,000 - £55,000 What we offer A competitive package including a 7% employer pension contribution, share options and a discretionary bonus. You’ll also benefit from flexible working hours (aligned to client commitments), 25 days’ holiday, and access to 3 annual “life happens” days to support unexpected situations. We also offer wellbeing support, ongoing professional development, volunteering opportunities and the chance to be part of a genuinely supportive team. Where you’ll work This role requires regular on-site attendance across our HQ, hub offices, client sites and home. Applicants must be able to commute to offices and client sites as part of their normal working arrangements, as travel is essential to fulfilling the responsibilities of the role. We include you We welcome candidates from all identities, attributes, ways of thinking and backgrounds to thrive in a career at Opencast. Our aim is for the diversity of our people to be reflected in the solutions we deliver, to help create a fairer society for all. Interview Interviews will be conducted via Microsoft Teams. We’re happy to make adjustments to support your needs. Want to know more? Visit our website for more details.

Spotlight
Software Engineer (contract)
Opencast
Multiple locations
Hybrid
Mid
ÂŁ350/day - ÂŁ450/day
+4

Ready to work somewhere that cares more about how you build software than how fast you can ship it? At Opencast, we don’t measure developers by the number of tickets you complete. We care about engineering craft, clean design and thoughtful problem-solving. Opencast consultants deliver in complex environments, pairing often and working with others who take pride in doing things properly: TDD, emerging design, refactoring and leaving code better than they found it. We build software we are proud of, and our clients trust us not just to code but to think, challenge and guide. If you value simple and robust solutions and want a role where your judgment matters as much as your keyboard, you will fit right in. The role We’re looking for Contractors in Software Development (consultant level) to help our major clients transform. Software developers at Opencast care about building products right and combine their own experience and approach with our company values. They are tech agnostic, have expertise in agile methodologies, extreme programming practices and use industry-leading programming languages to deliver agile transformation. Our approach to software development is collaborative, focused on keeping things simple, and we use test driven development and pair programming as best practice. Working with clients and key stakeholders is a crucial part of a consultancy role. Our developers are inclusive team players that listen, collaborate, can positively challenge and manage expectations when needed but most of all are always willing to teach and help others. Leaving a client with improved ways of working, working technology and a good experience from discovery through to live is the priority. Contractors at Opencast follow the same principles as permanent consultants. The roles are varied, technical, and never confined to any one provider or solution. Requirements Due to the nature of this role, applicants must either currently hold active Security Check (SC) Clearance or be eligible to obtain it. Eligibility typically requires UK citizenship and continuous residence in the UK for the past five years, with no single absence exceeding 28 consecutive days. As attendance at client sites is a routine part of the role’s working pattern and involves occasional travel, travel expenses are not covered. Experience in delivering digital services for the UK government is highly valuable for many of our projects. Therefore, familiarity with the GDS toolkit will be beneficial. Technical Skills - Expertise in Java and/or Scala is required - Experience with Javascript, Typescript, Kotlin, Python or Ruby is also valuable - Understanding of Object Oriented Programming - In depth knowledge of concepts and uses of testing - Knowledge or experience of delivering complex services to Government Digital Service (GDS) standards - Being comfortable with new technology, t-shaped and comfortable with ongoing learning and development is key to success - Experience with agile methodology A contractor in software development at Opencast is responsible for: - Delivering in the upkeep of their team’s backlog - Collaborating with the teams testing effort - Leading on the implementation of user stories - Embracing mobbing and pairing - Working with others in a collaborative, multi-disciplinary environment Salary Up to £450 per day (working inside IR35) Where you’ll work This role requires regular on-site attendance across our HQ, hub offices, client sites and home. Applicants must be able to commute to offices and client sites as part of their normal working arrangements, as travel is essential to fulfilling the responsibilities of the role. We include you We welcome candidates from all identities, attributes, ways of thinking and backgrounds to thrive in a career at Opencast. Our aim is for the diversity of our people to be reflected in the solutions we deliver, to help create a fairer society for all. Interview Interviews will be conducted via Microsoft Teams. We’re happy to make adjustments to support your needs. Want to know more? Visit our website for more details.

Spotlight
Senior Software Engineer
Opencast
Multiple locations
Hybrid
Senior - Leader
ÂŁ59,001 - ÂŁ72,000

Ready to work somewhere that cares more about how you build software than how fast you can ship it? At Opencast, we don’t measure developers by the number of tickets you complete. We care about engineering craft, clean design and thoughtful problem-solving. Opencast consultants deliver in complex environments, pairing often and working with others who take pride in doing things properly: TDD, emerging design, refactoring and leaving code better than they found it. We build software we are proud of, and our clients trust us not just to code but to think, challenge and guide. If you value simple and robust solutions and want a role where your judgment matters as much as your keyboard, you will fit right in. The role Software developers at Opencast care about building products right and combine their own experience and approach with our company values. They are tech agnostic, have expertise in agile methodologies, extreme programming practices and use industry-leading programming languages to deliver agile transformation. Our approach to software development is collaborative, focused on keeping things simple, and we use test driven development and pair programming as best practice. Working with clients and key stakeholders is a crucial part of a consultancy role. Our developers are inclusive team players that listen, collaborate, can positively challenge and manage expectations when needed but most of all are always willing to teach and help others. Leaving a client with improved ways of working, working technology and a good experience from discovery through to live is the priority. The role is varied, technical, never confined to any one provider or solution and there are always opportunities for learning and development. Requirements Due to the nature of this role, applicants must either currently hold active Security Check (SC) Clearance or be eligible to obtain it. Eligibility typically requires UK citizenship and continuous residence in the UK for the past five years, with no single absence exceeding 28 consecutive days. Experience in delivering digital services for the UK government is highly valuable for many of our projects. Therefore, familiarity with the GDS toolkit will be beneficial. Technical Skills - Expertise in Java or Scala is required - Experience in other languages such as Kotlin, Ruby or Javascript is also valuable - Deep understanding of programming paradigm, code design, testing, accessibility, performance and security - Proven ability to apply different testing tools and methods in practice - Knowledge or experience of delivering complex services to Government Digital Service (GDS) standards - Being comfortable with new technology, t-shaped and comfortable with ongoing learning and development is key to success. - Experience with agile methodology A senior consultant in software development at Opencast is responsible for: - Driving the elaboration of their team’s backlog - Setting testing strategies to match industry standards - Being a technical expert in their team (or acting as the team lead) - Leading the technical representation in a project discovery - Mentoring and coaching others to help them achieve their full potential - Demonstrating leadership within Opencast communities of practice Salary £59,001 - £72,000 What we offer A competitive package including a 7% employer pension contribution, share options and a discretionary bonus. You’ll also benefit from flexible working hours (aligned to client commitments), 25 days’ holiday, and access to 3 annual “life happens” days to support unexpected situations. We also offer wellbeing support, ongoing professional development, volunteering opportunities and the chance to be part of a genuinely supportive team. Where you’ll work This role requires regular on-site attendance across our HQ, hub offices, client sites and home. Applicants must be able to commute to offices and client sites as part of their normal working arrangements, as travel is essential to fulfilling the responsibilities of the role. We include you We welcome candidates from all identities, attributes, ways of thinking and backgrounds to thrive in a career at Opencast. Our aim is for the diversity of our people to be reflected in the solutions we deliver, to help create a fairer society for all. Interview Interviews will be conducted via Microsoft Teams. We’re happy to make adjustments to support your needs. Want to know more? Visit our website for more details.

Spotlight
Senior Software Engineer (contract)
Opencast
Multiple locations
Hybrid
Senior
ÂŁ450/day - ÂŁ600/day
+4

Ready to work somewhere that cares more about how you build software than how fast you can ship it? At Opencast, we don’t measure developers by the number of tickets you complete. We care about engineering craft, clean design and thoughtful problem-solving. Opencast consultants deliver in complex environments, pairing often and working with others who take pride in doing things properly: TDD, emerging design, refactoring and leaving code better than they found it. We build software we are proud of, and our clients trust us not just to code but to think, challenge and guide. If you value simple and robust solutions and want a role where your judgment matters as much as your keyboard, you will fit right in. The role We’re looking for Contractors in Software Development (Senior level or Technical Lead) to help our major clients transform. Software developers at Opencast care about building products right and combine their own experience and approach with our company values. They are tech agnostic, have expertise in agile methodologies, extreme programming practices and use industry-leading programming languages to deliver agile transformation. Our approach to software development is collaborative, focused on keeping things simple, and we use test driven development and pair programming as best practice. Working with clients and key stakeholders is a crucial part of a consultancy role. Our developers are inclusive team players that listen, collaborate, can positively challenge and manage expectations when needed but most of all are always willing to teach and help others. Leaving a client with improved ways of working, working technology and a good experience from discovery through to live is the priority. Contractors at Opencast follow the same principles as permanent consultants. The roles are varied, technical, and never confined to any one provider or solution. Requirements Due to the nature of this role, applicants must either currently hold active Security Check (SC) Clearance or be eligible to obtain it. Eligibility typically requires UK citizenship and continuous residence in the UK for the past five years, with no single absence exceeding 28 consecutive days. As attendance at client sites is a routine part of the role’s working pattern and involves occasional travel, travel expenses are not covered. Experience in delivering digital services for the UK government is highly valuable for many of our projects. Therefore, familiarity with the GDS toolkit will be beneficial. Technical Skills - Expertise in Java and/or Scala is required - Experience in other languages such as Javascript, Typescript, Kotlin, Python or Ruby is also valuable - Experience in a technical leadership role - Deep understanding of programming paradigm, code design, testing, accessibility, performance and security - Proven ability to apply different testing tools and methods in practice - Knowledge or experience of delivering complex services to Government Digital Service (GDS) standards - Being comfortable with new technology, t-shaped and comfortable with ongoing learning and development is key to success - Experience with agile methodology A senior level contractor in software development at Opencast is responsible for: - Driving the elaboration of their team’s backlog - Setting testing strategies to match industry standards - Being a technical expert in their team (or acting as the team lead) - Leading the technical representation in a project discovery - Acting as a technical lead in the team, enabling them to achieve their full potential Salary £450 - £600 per day (working inside IR35) Where you’ll work This role requires regular on-site attendance across our HQ, hub offices, client sites and home. Applicants must be able to commute to offices and client sites as part of their normal working arrangements, as travel is essential to fulfilling the responsibilities of the role. We include you We welcome candidates from all identities, attributes, ways of thinking and backgrounds to thrive in a career at Opencast. Our aim is for the diversity of our people to be reflected in the solutions we deliver, to help create a fairer society for all. Interview Interviews will be conducted via Microsoft Teams. We’re happy to make adjustments to support your needs. Want to know more? Visit our website for more details.

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Frequently asked questions
You can find a wide range of Ruby jobs including Ruby on Rails developers, backend engineers, full-stack developers, and software architects specializing in Ruby.
While many Ruby job listings require experience with Ruby on Rails, there are also opportunities for developers skilled in other Ruby frameworks or pure Ruby programming.
Yes, our job board features both remote and on-site Ruby developer positions from companies around the world.
Providing a portfolio or GitHub link showcasing your Ruby projects is highly recommended, as it helps employers assess your skills and experience.
New Ruby job listings are added regularly, often daily, ensuring you have access to the latest opportunities in the Ruby development field.