Role: Senior Full Stack Software Engineer
Location: London, Manchester or Bristol (Hybrid)
Length: Initial 6-month contract
Rate: £650-£700 per day (Inside IR35)
Clearance: Active SC clearance is preferred, or candidates must be SC-eligible

We’re supporting a major UK Government department that’s looking for a Senior Full Stack Software Engineer to help design, build, and run critical digital services.

This is a hands-on role suited to someone who enjoys technical ownership, mentoring others, and improving the resilience and security of live systems.

Key experience

• Strong backend development in two or more languages (Python, Node.js/JavaScript, Ruby)
• End-to-end full stack experience including modern frontend frameworks and accessibility standards
• Experience building cloud-hosted services (AWS, serverless/FaaS)
• Containerisation and microservices using Docker and Kubernetes
• Solid understanding of authentication, authorisation, and web security best practices
• Modern engineering practices: TDD, automated testing, CI/CD, GitHub, IaC (Terraform)
• Comfortable working in Agile delivery environments, both independently and collaboratively

Desirable

• Experience with .NET / ASP.NET Core
• Exposure to Azure or GCP

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.

Join Ten10 as a Senior Software Developer in Test Job Type: Permanent Working Model: Hybrid Looking for your next challenge? At Ten10 , were transforming how businesses deliver quality software, and were looking for a passionate Senior Software Developer in Test to join our growing team. If youre a skilled developer with a love for testing and problem-solving, this is your chance to make a real impact. ?? Important: All applicants must be eligible for SC clearance . Not sure if you qualify? Check here. Why Ten10? At Ten10, were proud to be one of the UKs leading independent consultancies for Quality Engineering, Software Testing, RPA, and DevOps . We bring together exceptional talent to deliver innovative solutions that help our clients release software faster and with confidence. Heres why youll love being part of our team: Exciting Projects: Collaborate on challenging, impactful projects with a wide range of industries, from finance to government and beyond. Career Growth: Tailored training and development opportunities to help you reach your goals. Team Culture: Join a supportive, inclusive team that values collaboration, creativity, and innovation. Flexibility: Hybrid working lets you balance work and life. About the Role This is more than just a job, its an opportunity to lead, innovate, and grow. As a Senior Software Developer in Test , youll: Work with our clients to design, build, and implement cutting-edge automation frameworks and testing solutions. Lead and mentor small teams of automation testers, providing guidance and technical direction. Take ownership of QA strategies, influencing testing best practices. Play a client-facing role, ensuring our solutions align with their business needs. What Were Looking For We know great talent comes in many forms. If youre excited about this role but dont tick every box, wed still love to hear from you! Essential Skills & Experience: Eligibility for SC clearance . Significant experience in Agile environments (e.g., SCRUM, Kanban). Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript , or similar. Proven expertise in automation testing , with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssured . Strong knowledge of integration testing and automation frameworks . Experience leading small teams of testers and contributing to the overall QA strategy . Knowledge of performance testing tools like JMeter, Gatling, K6 or Neoload . Hands-on experience with CI/CD pipelines and tools (e.g., Jenkins, CircleCI, GitLab CI, Azure DevOps). Infrastructureand Security Testing - TerraTest, Terraform Test or ZAP Excellent communication and stakeholder management skills. Bonus Points for: Previous experience in a consultancy environment . Hands-on coding experience in additional languages like Python, Ruby, Scala, PHP, or C++ . Whats in It for You? At Ten10, we believe in recognizing and rewarding great work. Heres what you can expect: 25 Days of Annual Leave: Plus 1 extra day every year for the first three years, with a holiday buying scheme. Pension Plan: Employer-matched contributions up to 5%. Health Benefits: Comprehensive coverage for medical, dental, optical, and alternative therapies. Fitness Support: Subsidized gym memberships and a bike-to-work scheme. Commuter Benefits: Season ticket loans to make travel easier. Flexible Work Model: Hybrid working that fits your lifestyle. Social Events: From annual kick-offs and Christmas parties to team socials and sporting events, we love celebrating success together. Training & Development: Tailored learning opportunities and full support for certifications to keep your skills sharp. Lets Build the Future Together Were on the lookout for passionate, talented individuals who are ready to make an impact. Whether youre an experienced automation tester or a developer with a flair for QA, we want to hear from you. Ready to take the next step? Apply now and join us on this exciting journey! TPBN1\_UKTJ

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.

Duration: 6 months
Rate: £500 - £600 per day
Location: Remote working and onsite at Bath, Somerset occasionally when required (hybrid)
IR35 Status: Inside
Start: ASAP

A Ruby Developer is required for our higher education client who are embarking on a strategic project to complete a comprehensive review of their website and CMS architecture.

You will help to make key improvements to their CMS and associated infrastructure.

You will be working in a small but highly productive development team, providing project-based Digital development and consultancy in the client’s bespoke, Ruby-based technical environment (including Typecase and Typecase for Courses).

This role has a strong focus on Back End development but will also include some Front End work.

Key pieces of development to be delivered include:

‘Lensification’: transition of selected content types from Typecase’s original ‘Origins’ design system to the current ‘Lens’ design system.
Creation of new content types in Typecase, as required, including for virtual events.
Delivery of a new, high-impact home page.
Development of new templates for SSO functionality.
General development work to support the Development roadmap.

Essential Skills & Experience include:

As the Ruby Developer you will possess the following:

Demonstrable experience of using Ruby on Rails or similar in production web applications (Specifically: Rails 5+, Ruby 2.5+).

Demonstrable experience of test frameworks (eg RSpec, Minitest, Selenium, Capybara).

HTML

CSS

SQL

Git

Continuous integration and deployment

To possess extensive, high-level experience of Ruby-based digital development, with demonstrable portfolio of work.

In-depth technical experience of development on systems directly equivalent to the Clients digital infrastructure, including the Typecase and Typecase for Courses Ruby-based content management systems.

Ability to get up to speed with complex systems and infrastructure quickly and efficiently.

Proven ability to take the lead on digital development tasks with experience of working in Agile development teams

Experience of working with Jira or similar project management software.

Experience of conducting Discoveries and researching and documenting development approaches, contributing to the team knowledge base and assisting in the planning of development work.

Develop code in line with the team’s coding processes and standards.

Ensure that technical excellence, appropriate testing, coding best practice, and version control are incorporated into the development process for every project.

Use appropriate patterns and frameworks in product design and implementation.

Document code and platforms to allow other team members to quickly understand and work with them.

Desirable would be any:

Web server configuration (eg Apache, Nginx)

JavaScript

SasS

Web accessibility

If this role is of interest, please email your CV to: (see below)

Certes Computing (and all of its subsidiary companies) is committed to promoting equality and diversity in its business operations.

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.

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

£50k - £60k

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!

Role / Job Title:AWS Cloud 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

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

Read our CEO Statement

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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

Principal Full Stack Developer -Market Leading UK Business -Berkshire (2 days Onsite) -£80,000 - £100,000 (DOE) -Essential Exp: Ruby on Rails, NodeJS, ReactJS, TypeScript, AWS

It’s not often to get to support a company that you’ve seen grow from humble beginnings into a truly market leading giant in their industry.

My story with this company starts from grassroots football team sponsorship and having their logo adorn the front of our shirts to seeing them now as true leaders in a highly competitive industry.

G.R.E. Recruitment is DELIGHTED and EXCITED to partner with an exciting UK based company who are looking to add a Principal Software Developer to their highly successful team based in Berkshire.

Principal Level Full Stack Developer - 75% Hands on Development with Ruby & ReactJS / 25% Line Management - reporting directly into the CTO

This is a high-impact role for an architect-level developer who still loves to build. Youll define technical direction, raise engineering standards, and lead from the front-driving innovation, scalability, and engineering excellence across the business.

You’ll be joining a team of 4 software engineers building a cutting edge, tech enabled platform which is trusted by thousands of customers across the UK. They have over 250 staff across the UK.

This role is 2 days onsite in their Berkshire based offices - so you should live commutable to the Berkshire area.

If you’re interested in finding out more, APPLY NOW!

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 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

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.

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.

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.

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.

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.

Company Description

Experian is a global data and technology company, powering opportunities for people and businesses around the world. We help to redefine lending practices, uncover and prevent fraud, simplify healthcare, create marketing solutions, and gain deeper insights into the automotive market, all using our unique combination of data, analytics and software. We also assist millions of people to realize their financial goals and help them save time and money.

We invest in people and new advanced technologies to unlock the power of data. As a FTSE 100 Index company listed on the London Stock Exchange (EXPN), we have a team of 22,500 people across 32 countries. Our corporate headquarters are in Dublin, Ireland. Learn more at experianplc.com.

Internal Grade D/EB8

Job Description

Experian’s Offensive Security team charges itself with improving the organisation’s security posture through clarifying risk and verifying the efficacy of our technical, people, physical and process controls from an attacker perspective. The team perform regular Adversary Simulation (Red Team) testing and a range of Ad-Hoc and Tactical Assessments based on changes to the threat landscape and organisational needs.

To succeed in this role, you have breadth and depth of knowledge in security. This knowledge will include operating systems, networking and protocols, firewalls, databases, and middleware applications. Additionally, you will have expertise in forensics, scripting and programming, vulnerabilities, and the usage of GenAI / social engineering techniques.

This is a Hybrid, Nottingham or London based role (40% in office) reporting to the Head of Offensive Security.

Responsibilities

• Collaborate with other teams within the Cyber Fusion Centre and the wider organisation. This ensures that we understand and articulate Cyber Risks in a threat-informed manner. The ultimate goal is to contribute to the successful defense of the organisation.
• Support Offensive Security’s engagement at multiple organizational levels, from senior leaders to technical analysts to help improve risk understanding and verify the efficacy of remediation/mitigative actions.
• Participate in performing physical exploitation, network exploitation and social engineering assessments against authorized targets.
• Use CyberThreat Intelligence, Offensive Security Research, previous Adversary Simulation (Red Team) findings and internal risk intelligence to develop test cases demonstrating TTP effectiveness against Experian’s control environment.
• Research and stay up to date with the latest cyber threats, attack vectors and attacker methodologies.
• Develop scripts, tools and methodologies to increase Offensive Security’s capabilities and educate other team members around automation and AI.
• Use MITRE ATT&CK Framework and other structured attack analysis tools to describe and classify attacker methodology and significance.

Qualifications

What your core background is

• Background in offensive security and adversary simulation.
• Detailed knowledge of global cyber threats and the procedures used by cyber adversaries.
• Two or more of the following skills:
  • Network penetration testing and manipulation of network infrastructure
  • Web application penetration testing assessments
  • Email, phone, or physical social-engineering assessments
  • Development, extension, or modifying of exploits, shecode or exploit tools
  • Covert physical intrusion
  • Cloud security or penetration testing (any major provider)
  • AI Red Teaming/Testing and usage of Agentic AI for automation.
• Industry certifications such as OSCP, OSCE, OSWE, GPEN, GCIH, GWAPT, or GXPN or equivalent experience.

Specialist skills:

• Proficient in attacker tooling, including post-exploitation frameworks and tooling.
• Proficient in any of following programming languages (C, C++, C#, Python, PowerShell, Bash, or Ruby)
• Proficient in Social Engineering techniques across OSINT, phishing, vishing and impersonation.
• Knowledge of current cloud attack methodologies and mitigations.
• Experience of Windows Operating System architecture and internals and use thereof in an enterprise environment.
• Core Information Technology concepts such as TCP/IP networking, Windows & Active Directory, Unix/Linux, Mainframe, Cloud Service Providers, Relational Databases, Data Warehouses, and filesystems
• Knowledge of IT technologies and methods to secure them i.e. databases, SharePoint, storage area networks and cloud-based storage.

Additional Information

Benefits package includes:

• Great compensation package and discretionary bonus plan
• Core benefits include pension, bupa healthcare, sharesave scheme and more
• 25 days annual leave with 8 bank holidays and 3 volunteering days. You can purchase additional annual leave.

Experian is proud to be an Equal Opportunity and Affirmative Action employer. Innovation is an important part of Experian’s DNA and practices, and our diverse workforce drives our success. Everyone can succeed at Experian and bring their whole self to work, irrespective of their gender, ethnicity, religion, colour, sexuality, physical ability or age. If you have a disability or special need that requires accommodation, please let us know at the earliest opportunity.

Experian Careers - Creating a better tomorrow together

Find out what its like to work for Experian by clicking here

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.

Front-end Developer (Public Sector)

6 Month Contract - £575/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: £575/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