Description

The Senior Linux/Unix Engineer is responsible for deploying, configuring, and maintaining Red Hat Enterprise Linux and Solaris systems on-premises and cloud environments. This includes managing system builds, patching, security hardening, performance tuning, and troubleshooting complex OS-level issues. The engineer will oversee lifecycle management for RHEL and Solaris servers, ensuring stability, high availability, and compliance with organisational and security standards. Key responsibilities also include automating operational tasks using tools such as Ansible or shell scripting, monitoring system health, supporting application teams with environment requirements, and contributing to the design and implementation of resilient infrastructure solutions. The role requires strong collaboration with security, networking, and application teams to ensure reliable and efficient delivery of Unix-based services.

Hybrid Working Position requiring 3 Days in Office a week based in London.

Essential Skills;

• Provide engineering and Senior-level support for all UNIX platforms, including Red Hat Enterprise Linux 8/9, Rocky, Solaris 11, and Oracle Linux.
• Banking and/or Financial Industry experience.
• Supporting core financial applications running on Linux and Solaris environments (any experience of Murex desirable).
• Build, patch, and upgrade systems to ensure stability, security, and compliance.
• Maintain system build images and create packages (RPM) as required.
• Identify opportunities to improve, streamline, or automate operational processes.
• Lead incident management activities, including investigation, resolution, and root-cause analysis.
• Assist with fault diagnosis, performance tuning, and provide recommendations for system improvements.
• Manage the full lifecycle of operating systems, including continuous review and deployment of vendor security patches, bug fixes, and communication of EOL milestones to customers.
• Identify hardware and software obsolescence and plan appropriate remediation activities.
• Address recurring issues by implementing fix-at-source solutions or developing automated/self-healing processes using Ansible, Python, or Bash.
• Maintain strong relationships with stakeholders and act as a trusted technical partner.
• Promote a DevOps mindset by encouraging agile practices and collaboration with other technical teams.
• Continuously review operational processes and procedures to identify efficiencies and drive modern, improved ways of working.
• Provide accurate documentation, technical guidance, and effective solutions to Service Delivery Team.
• Perform trend and capacity management to ensure systems have adequate resources to meet demand.
• Identify and track configuration-management drift and support remediation.
• Support disaster recovery and business continuity testing activities.
• Assist with audit activities, including remediation planning and treatment plans.

\This role doesn’t allow for sponsorship.

Job Title: Senior Linux/Unix Engineer

Location: London, UK

Job Type: Contract

Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. 2876353. Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as “Allegis Group”). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Privacy Notice available at https://www.allegisgroup.com/en-gb/privacy-notices.

To access our Online Privacy Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to https://www.allegisgroup.com/en-gb/privacy-notices.

We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Privacy Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your privacy rights, please visit the “Contacting Us” section of our Online Privacy Notice at https://www.allegisgroup.com/en-gb/privacy-notices for details on how to contact us. To protect your privacy and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Privacy Shield or the Swiss-U.S. Privacy Shield.

Systems Engineering / IV&V Lead

Powering Decision. Securing the Future.

Join the team redefining defence technology.
From engineering systems that save lives to leading programmes that shape the future battlespace - find your place in the next generation of defence innovation.

About the Opportunity

This role sits at the heart of delivering secure, high-integrity systems for critical defence programmes. You will contribute to the development of advanced solutions that protect sensitive information and enable trusted communication in demanding operational environments.

Join our ciet and play a key role in shaping the technology that underpins national security.

The Role

As a Systems Engineering / IV&V Lead, you will be responsible for driving verification and validation across complex hardware, software and firmware-based systems. Acting as a senior technical authority, you will develop test strategies, assure engineering quality, and guide evidence generation from concept to acceptance.

You will operate independently, mentor engineering teams, lead technical delivery, and influence best practice across the organisation.

Key Responsibilities

• Lead assurance of Systems Engineering activities, including in-process verification and validation.
• Deliver clear, conclusive evidence through System Integration, Verification & Validation (IV&V) activities.
• Create and maintain IV&V artefacts: strategies, plans, procedures, compliance matrices and reports.
• Ensure system correctness and completeness from requirements to final acceptance.
• Apply IV&V processes in accordance with industry standards and best practice.
• Lead development of specialist test equipment, rigs, harnesses and fixtures.
• Oversee safety and security of test environments and IV&V events.
• Act as a key contributor to engineering design reviews, TRRs and project gateways.
• Support qualification and compliance testing with internal and external test houses.
• Manage use of external IV&V facilities, including interoperability testing.
• Drive improvements in Systems Engineering and IV&V tools, methods and processes.
• Provide expert technical guidance across engineering teams.
• Mentor and coach engineers and non-technical staff in IV&V principles.
• Ensure security of information in line with government regulations.
• May include line management (2-6 engineers), technical leadership or subject matter expertise.

Essential Qualifications, Skills & Experience

• Current or recent SC clearance, with ability to obtain/maintain DV.
• Willingness to travel within the UK as required.
• Degree or equivalent in Engineering, Physics, Mathematics or relevant defence experience.
• Strong Systems Engineering knowledge (INCOSE / ISO 15288).
• Proven IV&V experience aligned to ISO 29119.
• Background in testing hardware, software and firmware systems.
• Experience developing special-to-type test equipment across multiple projects.
• Strong understanding of safety and security for laboratory/test environments.
• Experience delivering qualification and compliance test activities.

Desirable Experience

• Familiarity with environmental testing facilities and methods.
• Experience generating Basis of Estimate (BoE) for bids and change proposals.
• Engagement with professional engineering bodies; advocates for SE/IV&V standards.
• Experience with ISO 17025 test facilities.
• INCOSE membership (ASEP/CSEP).
• IV&V or test-related certification.
• Use of test automation frameworks.
• Experience with Environmental / EMC / EMI / TEMPEST testing.
• Competence in modelling techniques for test scoping or environment design.
• Scripting languages (e.g., Python, Bash, JavaScript, Perl).
• Knowledge of iterative and modern development methods such as TDD, BDD, ATDD.

Why Join?

• Work on mission-critical systems with tangible national security impact.
• Be a recognised technical leader and mentor within a high-performing team.
• Influence future Systems Engineering and IV&V best practice.
• Access ongoing professional development and opportunities to specialise.

Benefits include…

• Annual Bonus Scheme
• Private Medical Insurance
• 25 days’ holiday + Bank Holidays (with the option to buy an additional 5 days)
• Pension contributions
• 4 Life Assurance
• Flexible working hours, including the option to finish at 1pm on Fridays
• A range of flexible benefits such as cycle-to-work and will-writing services
• Security Clearance Allowance (where applicable)

Get in touch with me for more information!

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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Up to £510 per day - Inside IR35

Remote

6 months

My client is an instantly recognisable consultancy who urgently require a Platform Engineer with Active SC Clearance for an end client within the public sector.

Key Requirements:

Proven commercial experience working as a Platform / DevOps Engineer within the public sector.
Active SC Clearance.
Strong, commercial experience with Terraform for IaC, and with Databricks.
Proven track record configuring and managing Azure DevOps CI/CD pipelines.
Deep understanding of Azure cloud services and components.
Practical experience with Docker containerisation.
Knowledge of security scanning tooling (Trivy or similar).
Scripting proficiency in Bash (Python is desirable).
Solid understanding of Git-based version control, specifically within Azure DevOps.
Nice to have:

Immediate availability.Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found at (url removed)

Location: London (3 days in office: Monday-Wednesday)
Sponsorship: Not available

About the Company

We are a provider of high‑performance trading and market‑data technology, delivering ultra‑low‑latency solutions across global markets. Our systems support demanding front‑office environments where reliability, determinism, and speed are critical.

We are seeking a QA Engineer who brings strong technical capability along with the right personal qualities-energy, curiosity, and a passion for breaking things before production does.

The Role

You will ensure the correctness, robustness, and reliability of complex trading and market‑data systems. Working closely with developers and product teams, you will validate system behaviour, identify unexpected issues, and contribute to improvements across the SDLC.

This is a hands‑on test engineering role for someone who enjoys deep investigation, questioning assumptions, and continuously improving testing processes.

Key Responsibilities

Design, develop, and execute test plans, test cases, and regression suites.
Perform manual and automated testing within Linux environments.
Write and execute scripts (Bash required) for testing and validation tasks.
Investigate failures, analyse logs, diagnose root causes, and raise clear defect reports.
Validate behaviour and performance of market‑data and low‑latency workflows.
Collaborate with developers to reproduce issues and verify fixes.
Contribute to improvements in testing frameworks, tools, and processes.
Support release readiness reviews and provide QA signoff.

Required Skills & Experience

Proven QA Engineering experience in complex software systems.
Strong Linux and Bash skills (must‑have).
Good understanding of the software development lifecycle (SDLC).
Scripting experience: Python or C++ is a Nice to Have, but transferable skills in other languages are welcome.
Comfortable working with CI pipelines, version control, and defect‑tracking tools.
Strong analytical and troubleshooting skills, especially in distributed or performance‑sensitive systems.

Nice to Have

Experience in trading‑technology or front‑office environments, such as:

Market Data
FIX Trading / Order Flow
Ultra‑low‑latency systems
Exchange connectivity
High‑frequency trading workflows(Not required, but highly beneficial.)

Personal Profile

We place high value on personality and attitude. The ideal candidate is:

Positive, energetic, and happy coming into the office.
Naturally curious and enjoys breaking things to understand root causes.
Adaptable, eager to learn, and comfortable in a fast‑moving environment.
Detail‑oriented with a drive for quality and continuous improvement.
A strong communicator who enjoys collaborating with cross‑functional teams.

Services advertised by Gold Group are those of an Agency and/or an Employment Business.
We will contact you within the next 14 days if you are selected for interview. For a copy of our privacy policy please visit our website

Job Title: DevOps Engineer

Location: London

Salary: TBC - We are booking interviews in next week! Please call or email for a slot

You’ll need to have an understanding of Windows and Linux systems and DevSecOps principles and experience of working within a multi-disciplined team. Knowledge and understanding of core software tools, methods, and frameworks to reliably integrate and deploy, integrate, and test features into environments to ensure optimum outcomes for our customers. Additionally, we’re looking for candidates with hands-on experience in infrastructure engineering, including expertise in areas such as cloud architecture, containerization (e.g., Docker, Kubernetes), infrastructure-as-code (e.g., Terraform, Ansible), and system performance optimization to support seamless integration and testing processes.

The Role:

So, what will you be doing as a DevOps Engineer?

• Design, build, deploy and manage a broad set of IT Infrastructure aligning to customer needs and requirements, while leveraging infrastructure engineering best practices to maintain system reliability and scalability with a focus on automation and repeatability.
• Develop Infrastructure as Code and scripts and integrate those with CI/CD pipelines and a wider ecosystem of tools, prioritising automation to streamline deployments.
• Provide full end to end systems lifecycle management covering architecture, design, deployment and support through to decommissioning and migration.
• Support the integration and delivery of large and complex solutions into a wider system-of-systems, ensuring infrastructure components are robust and interoperable.
• Opportunities to experience the cloud by undertaking deployments in Public, Private, and Hybrid Cloud environments, addressing potential constraints while optimizing infrastructure performance and security.

Further details:

• Advanced understanding of DevSecOps. The ability to work within an agile environment and delivering using Scrum and Sprints utilising tools such as Jira and Confluence to help planning and collaboration.
• Expert in Windows and Linux systems administration (Active Directory etc).
• Expert in Virtualisation technologies and concepts - VMware vsphere, ARIA Ops performance monitoring, software defined networking - NSX.
• Advanced understanding of Web proxy servers and configuration - Squid.
• Experience of Automation technologies Terraform and Ansible for complex builds, Packer.
• Experience of CI/CD pipeline builds - Jenkins.
• Understanding of Git/Bitbucket/GitLab integration, coding and branching strategies.
• Proficient in the use and administration of Containerisation technologies - Kubernetes, Docker.
• Proficient in Powershell, bash scripting.
• Proficient in Python.
• Proficient in the use of Networking skills - IPv4 addressing and routing.
• Experience of Logging and monitoring using Zabbix and Splunk.
• Experience of Cloud and AWS concepts and technologies.

Desired Skills:

• Can support maturation of automated CI/CD software pipelines for Cloud deployments.
• Understanding of IaC and using this to deploy and integrate services on Cloud.
• Hands on experience in using and integrating with AWS Services such as EC2, EKS, Fargate, IAM, S3, Lambda.
• Experience using the AWS SDK (Boto3) to automate integration tasks.
• Experience or understanding integrating hybrid-cloud application deployments.
• Understanding of CloudTrail to debug and diagnose integration issues.

My client is keen to get this position filled ASAP, so if you feel you have the skills and desire to provide passion and drive as the next DevOps Engineer, this is the opportunity for you!

You will be required to undergo DV clearance for this role.

So, if you are interested in joining a well-established, renowned, globally recognised organisation working with experts in their field as the next DevOps Engineer, hit that apply button now!

Services advertised by Gold Group are those of an Agency and/or an Employment Business.
We will contact you within the next 14 days if you are selected for interview. For a copy of our privacy policy please visit our website.

White Collar Factory (95009), United Kingdom, London, LondonPenetration Testing Manager

Capital One Offensive Security reduces cyber risk by uncovering vulnerabilities and weaknesses in the enterprise cyber environment through coordinated ethical hacking and penetration testing scenarios. This position works closely with team members to plan, coordinate, execute and report on sophisticated ethical hacking exercises, to identify cyber vulnerabilities and reduce the risk posture of enterprise systems. This role will be responsible for the identification and exploitation of security weaknesses, providing actionable recommendations, and collaborating with various teams to enhance our security posture.

About this role:

The successful candidate for this position will be part of an exciting and dynamic environment to build and deliver industry leading ethical hacking capabilities to continuously protect and defend Capital One brand, systems and data. Offensive Security is part of the Cyber Operations and Intelligence program and assists with identifying opportunities to enhance Capital One’s information security posture against a broad range of cyber threats, and develop strategies to most effectively address the threats.

What you’ll do:

• Leading and overseeing penetration testing of enterprise networks, services, applications, and infrastructure.
• Contributing to the development of a comprehensive penetration testing strategy that aligns with the organization’s overall security objectives.
• Analyzing penetration testing results and providing actionable insights to relevant stakeholders to drive remediation efforts and improve the organization’s security posture.
• Staying abreast of emerging threats and attack techniques to ensure that the team’s strategy and techniques remain relevant and effective.
• Providing mentorship and guidance to foster professional development and enhance the team’s overall capabilities.
• Working with developers on remediation guidance and improvements throughout the Software CI/CD pipeline.
• Clearly and effectively conveying technical information and results to diverse audiences, including senior management and those without a technical background.

What we’re looking for:

• Information security experience in one or more of the following areas: red teaming, penetration testing, application security, or network security.
• Experience with security testing tools and tradecraft.
• Able to communicate effectively up, down and across the organization, both verbally and in writing. Including the ability to explain complex technical findings to technical teams and executive audiences.
• Proven ability to manage technical staff and projects, perform effective long term planning and implement continuous process improvement practices.
• Should have a strong understanding of networking concepts, Windows, Linux and Mac operating systems, cloud and web application vulnerabilities and exploitation.

Any of these would be advantageous (but we’d still love to hear from you):

• Bachelors Degree or equivalent certification
• Security testing of cloud environments. We’re invested with AWS but will consider those who have worked on any other major public cloud provider (Azure, GCP).
• Experience in offensive security tool development, customization or expansion.
• Ability to code comfortably in one or more interpreted languages (eg. Python, Bash, PowerShell, Perl, Ruby) and one or more compiled languages (eg. C, C++, C#, Golang, Rust, Java, Objective-C)
• One or more of the following certifications (OSCP, OSCE, GPEN, GXPN, CRTO, CREST Certified Simulated Attack Manager)

Where and how you’ll work

This is a permanent position and can be based in either our London or Nottingham Head Offices.

We have a hybrid working model which gives you flexibility to work from our offices and from home.

We’re big on collaboration and connection, so you’ll be based in our London Head Office office 3 days a week.

Many of our associates have flexible working arrangements, and we’re open to talking about an arrangement that works for you.

What’s in it for you

• Bring us all this - and you’ll be well rewarded with a role contributing to the roadmap of an organisation committed to transformation
• We offer high performers strong and diverse career progression, investing heavily in developing great people through our Capital One University training programmes (and appropriate external providers)
• Immediate access to our core benefits including pension scheme, bonus, generous holiday entitlement and private medical insurance - with flexible benefits available including season-ticket loans, cycle to work scheme and enhanced parental leave
• Open-plan workspaces and accessible facilities designed to inspire and support you. Our Nottingham head-office has a fully-serviced gym, subsidised restaurant, mindfulness and music rooms. In London, you can heighten your mood with a run on our rooftop running track or an espresso at the Workshop Coffee café

What you should know about how we recruit

We pride ourselves on hiring the best people, not the same people. Building diverse and inclusive teams is the right thing to do and the smart thing to do. We want to work with top talent: whoever you are, whatever you look like, wherever you come from. We know it’s about what you do, not just what you say. That’s why we make our recruitment process fair and accessible. And we offer benefits that attract people at all ages and stages.

We also partner with organisations including the Women in Finance and Race At Work Charters, Stonewall and upReach to find people from every walk of life and help them thrive with us. We have a whole host of internal networks and support groups you could be involved in, to name a few:

• REACH - Race Equality and Culture Heritage group focuses on representation, retention and engagement for associates from minority ethnic groups and allies
• OutFront - to provide LGBTQ+ support for all associates
• Mind Your Mind - signposting support and promoting positive mental wellbeing for all
• Women in Tech - promoting an inclusive environment in tech
• EmpowHER - network of female associates and allies focusing on developing future leaders, particularly for female talent in our industry

Capital One is committed to diversity in the workplace.

If you require a reasonable adjustment, please contact All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment.

For technical support or questions about Capital One’s recruiting process, please send an email to

Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site.

Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC).

Who We Are

At Capital One, we’re building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding.

Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

London/Colchester

Permanent - Hybrid
Up to £70,000 + bonus

VIQU have partnered with a leading technology-driven organisation seeking a Linux Engineer to join their growing Technology team. This is a hands-on, technically focused role where the Linux Engineer will support and optimise a mission-critical SAP HANA platform running on SUSE Linux Enterprise Server, while also contributing to cloud integration with Microsoft Azure. The role blends BAU support with project delivery, providing scope to influence platform improvements and work alongside a skilled infrastructure and DevOps team.

Key Responsibilities:

Manage and maintain SUSE Linux Enterprise Server (SLES) environments.
Monitor systems, troubleshoot issues, and optimise performance.
Ensure system security and compliance with industry standards.
Automate tasks using Bash, Python, or Perl scripts.
Design, deploy, and manage Linux workloads in Azure.
Implement and manage virtual networks, storage, and Azure resources.
Ensure high availability and disaster recovery of critical systems.
Use Azure DevOps for CI/CD pipeline automation and infrastructure as code (IaC).
Collaborate with developers, DBAs, and network engineers to provide technical guidance.
Document system configurations, procedures, and troubleshooting steps.

Key Requirements:

Proven experience as a Linux Administrator, ideally with SLES.
Hands-on SAP HANA administration and optimisation experience.
Proficiency with Microsoft Azure, including ARM templates, Azure CLI, and PowerShell.
Strong Scripting skills (Bash, Python, Perl) for automation.
Experience supporting large-scale enterprise environments.
Excellent problem-solving and collaboration skills.
SUSE or Microsoft Azure certifications are a plus.

Apply today to speak with VIQU in confidence or contact Belle Hegarty via the VIQU website
Know someone exceptional for this Linux Engineer position? Refer them and receive up to £1,000 if successful (terms apply).

DevOps Engineer (Active SC)

£504.49/day Inside IR-35

Remote with occasional travel to London, Manchester or Leicester

6 month initial contract

We are looking for a DevOps Engineer to work closely with developers and IT teams to manage and optimise code releases, bringing together strong engineering principles with practical coding knowledge. You will play a key role in creating and implementing systems software, analysing data to enhance existing solutions, and driving productivity across the organisation. A solid understanding of the software development lifecycle is essential, along with hands-on experience using automation tools to build and maintain CI/CD pipelines.

Mandatory experience and skills include:

* Proven ability to learn quickly and apply new technical skills
* Hands-on experience delivering technical projects within the DevOps domain
* Experience working in an integration-focused scrum team, supported by architects and subject matter experts
* Ability to collaborate effectively with client teams remotely, supporting successful integration with external applications
* Experience with WebSphere, MQ, IBM BPM or other rules-based application technologies
* Familiarity with JIRA and Confluence
* Knowledge of scripting languages such as ANT, Ansible, Bash, or Terraform
* Creating and maintaining CI/CD pipelines
* Experience with Jenkins, AWS, Git, Docker, and Liquibase

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Role: Lead DevOps Engineer Rate: £675 - £715 per day (Inside IR35 - Umbrella) Location: Fully Remote (UK-Based) Duration: Initial 6 months (extensions highly likely) Clearance: Active SC Clearance (Required) The Opportunity Join a high-profile Public Sector transformation programme. We are seeking a senior-level DevOps Engineer to serve as technical leads in the design and evolution of secure, cloud-native platforms. This is a pure IaC (Infrastructure as Code) environment focused on enterprise-scale resilience and security. Core Technical Stack \* AWS Master: Deep expertise across EC2, Lambda, S3, IAM, and VPC. Terraform Expertise: Proven track record in designing and refactoring complex IaC environments (Git/GitLab integration). CI/CD Orchestration: Advanced experience with GitLab CI and Jenkins to automate end-to-end delivery pipelines. Containerization: Practical experience with Docker and Kubernetes (EKS) for scaling microservices. Scripting: High proficiency in Python, Bash, and Ansible for automation and 'code review' leadership. Responsibilities Lead Technical Design: Shape the architectural direction of the AWS environment. Refactoring & Quality: Lead code reviews and promote refactoring techniques to enhance a multi-site enterprise codebase. Security & Compliance: Implement robust security measures aligned to GDS and Home Office security standards. Stakeholder Liaison: Act as the technical bridge between IT colleagues and business clients to track prioritisation and delivery. Apply Now for immediate consideration TPBN1\_UKTJ

Initial 20-day Contract
Remote
500 - 550, outside IR35

We are looking for a Control-M Scheduling Engineer with strong experience in distributed job scheduling and automation. The role involves building and maintaining scheduling workflows, integrating systems using APIs/CLI, and supporting enterprise workload automation.

Responsibilities:

• Control-M Distributed scheduling
• Creating Control-M Application Integrator jobs (API / CLI based)
• Experience with Control-M out-of-the-box integrations / plugins
• Linux and Windows scripting (e.g., Bash, Shell, PowerShell)

Requirements:

• SC Cleared (essential)
• Proven experience with Control-M Distributed scheduling
• Experience creating Control-M Application Integrator jobs, particularly using APIs and CLI integrations
• Strong scripting skills in Linux and Windows environments (e.g., Bash, Shell, PowerShell)

ECS Recruitment Group Ltd is acting as an Employment Business in relation to this vacancy.

Job Title: Job Title: Quantitative Developer

Location:London, UK (Hybrid 3 days onsite per week)
Contract Type:Inside IR35

Experience

• 10+ years of professional experience as a Quantitative Developer or Senior Software Engineer within financial services.

Role Overview

We are seeking an experienced Quantitative Developer to build and enhance high-performance trading and analytics platforms. The role involves close collaboration with quantitative researchers and trading teams to deliver robust, scalable, and production-ready systems in a fast-paced environment.

Key Responsibilities

• Design, develop, and maintain high-performance trading, pricing, and analytics systems
• Implement quantitative models and strategies usingC/C++ and Python
• Optimise applications for low latency, high throughput, and stability
• Work extensively inLinux environments, including automation viashell scripting
• Collaborate with quants, traders, and technology teams to productionise research
• Troubleshoot complex production issues and drive continuous performance improvements
• Adhere to best practices for code quality, testing, and version control usingGit

Required Skills & Experience

• Expert-level development experience inC and/or C++
• Strong hands-on experience withPythonin production environments
• Deep knowledge ofLinux systems, performance tuning, and debugging
• Proficiency inshell scripting(Bash or similar)
• Strong experience withGitand collaborative development workflows
• Proven experience delivering mission-critical systems in financial services

Desirable Skills

• Background in quantitative finance, trading systems, or capital markets
• Experience with low-latency architectures, multithreading, and concurrency
• Understanding of numerical methods, statistics, or financial models

About the Role

We are looking for a Level 2 (L2) Application Support Engineer to join a global trading operations team. The role focuses on supporting electronic trading platforms and financial applications in a high-pressure production environment. You will also participate in IT Service Management processes, including Incident, Problem, and Change Management, and contribute to operational governance.

Key Responsibilities:

• Troubleshoot and resolve live production issues quickly, escalating when necessary.
• Prioritise incidents based on business impact and urgency.
• Monitor system components and improve monitoring workflows.
• Support and maintain both production and testing environments.
• Communicate effectively with internal teams and end users.
• Document systems, processes, and operational enhancements.
• Collaborate with development teams to ensure smooth release handovers.
• Provide clear updates on outages and incidents.
• Support compliance and regulatory reporting requirements.
• Identify operational risks and implement mitigation.
• Mentor and train team members as needed.

Skills & Experience Required:

• Bachelor’s or Master’s degree in Computer Science or related field, with 5+ years of relevant experience.
• Strong interest in learning new technologies and tools.
• Experience with financial trading systems, messaging protocols, or electronic transaction platforms.
• Understanding of FIX protocol and low-latency system operations.
• Familiarity with messaging systems (e.g., JMS) and production system workflows.
• Knowledge of straight-through processing (STP) trade flows is desirable.
• Networking expertise with ability to analyse packet captures.
• Advanced Unix/Linux skills (TCP tuning, CPU affinity).
• Scripting experience in one or more languages (Python, Bash, etc.).
• Experience with system connectivity to trading platforms or exchanges is a plus.
• Excellent communication skills and strong customer-service mindset.

An outstanding opportunity has arisen for a Platform Engineer to join a distinguished international law firm in London where you will assume a pivotal role in shaping the firm's cloud infrastructure and automation strategies. PLATFORM ENGINEER Salary: Competitive and based on experienceLocation: London What you'll do: You will play an integral role in embedding essential tools such as ServiceNow into core operational processes whilst ensuring all cloud-based systems adhere rigorously to security protocols. By meticulously documenting best practices and providing mentorship to peers, you will contribute significantly to a culture of knowledge sharing and perpetual enhancement. Your expertise will also be sought as an escalation point for resolving complex technical matters. Success in this appointment is defined not only by the delivery of resilient solutions but also by your capacity to foster trusted relationships across departments-ensuring the organisation remains at the vanguard of technological progress whilst upholding its enduring commitment to inclusivity and collective endeavour. What you bring: You bring substantial hands-on experience automating intricate IT infrastructures using contemporary tools such as Terraform across both public and private clouds. Your familiarity with CI/CD pipelines ensures seamless integration between development functions and operational teams. You are adept at scripting-whether employing Bash on Linux or PowerShell on Windows-and have successfully navigated complex global environments where effective communication is paramount. With meticulous attention to detail and steadfast dedication to process refinement, you deliver secure solutions aligned with prevailing industry standards. Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

(Apply online only) per day - Umbrella only
Dates: 23/02/2026 - 31/07/2026
Mostly remote but will need to be flexible to travel to London, Manchester and Leicester as required

• An infrastructure operations engineer is responsible for the preparation and support of IT operations solutions and services, physical or virtual.
• They do so according to industry and organisational best practices, standards, service requirements and Key Performance Indicators (KPIs) throughout the product life cycle.
• Create and maintain documentation.
• Perform all routine tasks according to process and checklists.
• Monitor infrastructure and applications services.
• Alert and take appropriate action

Required Skills

Asset and configuration management.
Availability and capacity management.
Change Management.
Coding and scripting.
Continual service improvement.
Incident management.
Problem management.
Service management framework knowledge.
Testing.
Technical understanding

Technical skills

• Cloud Platforms: Azure / AWS / GCP (compute, networking, IAM, storage)
• OS & Virtualisation: Linux (RHEL/Ubuntu), Windows Server, VMware / Hyper?V
• Automation & IaC: Terraform, Ansible, PowerShell, Bash
• CI/CD & DevOps Tooling: Azure DevOps / GitHub Actions / Jenkins
• Monitoring & Observability: Prometheus, Grafana, ELK/EFK, Azure Monitor
• Networking & Security: Firewalls, Load Balancers, VPNs, Zero Trust, Identity & Access Management

All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!

£70,000 to 100,000 GBP
Bonus
Hybrid WORKING
Location: Central London, Greater London - United Kingdom Type: Permanent

Job Title: AI Security Engineer (GenAI Focus)
Location: London (Hybrid - 2 days per week onsite)
Salary: Flexible depending on experience + bonus

Job Overview
We are seeking an AI Security Engineer to design, implement, and maintain security solutions that protect complex systems and sensitive data, with a strong focus on GenAI and AI/ML platforms. This role works closely with data scientists, engineers, and security teams to ensure innovation is delivered securely and at scale.

This position is well suited to security professionals who want to transition into a GenAI-focused career path and develop deep expertise in securing AI/ML systems.

Key Responsibilities
Threat Analysis and Vulnerability Assessment

• Conduct regular threat modelling and vulnerability assessments across AI/ML systems, including data pipelines, model APIs, and GenAI services
• Develop tools, scripts, and benchmarks to automate AI/ML security testing
• Perform secure code reviews and penetration testing of AI-related software

Research and Development

• Research emerging threats, trends, and best practices in AI/ML security
• Deliver proof-of-concepts and proof-of-value initiatives to assess new technologies and controls
• Contribute to the development of advanced AI/ML security tools and techniques
• Produce high-quality technical documentation and user guidance

Security Engineering and Collaboration

• Provide subject matter expertise on security engineering patterns and controls
• Support secure software development practices aligned to OWASP and DevSecOps principles
• Collaborate with cross-functional engineering and security teams to align solutions with business and regulatory requirements
• Support audits, risk assessments, and control improvements across platforms

Required Technical Skills

• Strong programming and scripting skills in Python and Bash
• Strong knowledge of cloud technologies, specifically AWS and Azure
• Strong understanding of API development and API security
• Experience with threat modelling, penetration testing, and vulnerability assessments
• Familiarity with secure software development practices (OWASP, DevSecOps)
• Interest in or exposure to data science, AI, or ML systems

Required Soft Skills

• Strong analytical, research, and problem-solving skills
• Excellent written and verbal communication skills
• Ability to work effectively in cross-functional teams
• Comfortable advising stakeholders and contributing to security strategy and decision-making

Reference: AMC-AQU-AISEBBL

Postcode: EC2V 6AA

#adqu

Location: London, UK(2 days in a week from office, Hybrid)

Job type: 6 Months contract with possible extension

Active SC Clearance is required.(Mandatory)

We are seeking a high-caliber Azure Architect to lead complex infrastructure transformations. In this role, you won’t just design solutions; you will govern the technical strategy, mentor a dedicated team of engineers, and bridge the gap between deep technical Linux administration and high-level Azure cloud architecture.

Key Responsibilities

• Cloud Strategy & Assessment: Lead end-to-end On-prem/Public Cloud assessments using Azure Migrate. You will be responsible for understanding customer landscapes and designing robust Azure Landing Zones.
• Architectural Leadership: Develop High-Level (HLD) and Low-Level Design (LLD) documents, including comprehensive target architecture diagrams and Bill of Materials (BoM).
• Migration Execution: Drive large-scale migrations of Linux-based workloads to Azure, ensuring solutions align with TCO (Total Cost of Ownership) and ROI goals.
• Linux Mastery: Act as the Subject Matter Expert for Linux environments, managing kernel tuning, logical volumes, shell scripting, and advanced networking (bonding, bridging, and DNS).
• Security & Governance: Oversee Azure IAM, Key Vault, and general security protocols within a UNIX environment to ensure compliant and hardened architectures.
• Performance Optimization: Implement and tune high-performance web stacks using Apache, Varnish for caching, and HAProxy for load balancing.
• Team Leadership: Manage and technically govern a team of 5+ infrastructure engineers, providing guidance on root-cause analysis and complex troubleshooting.

Required Skills & Experience

• Experience: 12+ years in IT, with at least 5+ years specifically focused on Azure Infrastructure (IaaS/PaaS, Networking, Storage).
• Migration Expertise: Proven track record using Azure Migrate and driving complex solutioning for banking, healthcare, or insurance domains.
• Linux Expertise: Advanced knowledge of Linux systems (OS restoration, daemon management, Postfix/SendMail, and file-based storage like NFS/SMB).
• Network/Security: Deep understanding of Azure Networking, SIAM, and data security.
• Troubleshooting: Expert-level ability to perform root-cause analysis on processor, memory, IO, and cluster-related issues.

Desirable Skills

• Automation: Familiarity with Configuration Management tools like Ansible or Chef.
• DevOps: Experience with Git, Jenkins, and scripting in Python, Bash, or Ruby.
• Modern Web: Hands-on experience with TLS termination and web traffic optimization.

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

Permax Recruitment is working in partnership with a London based firm who are on the lookout for a Software Engineer. For nearly a century, our client has been building a firm as accountants, auditors, tax specialists and close advisors to clients operating in emerging markets, disrupting the status quo. This has accelerated thanks to the blockchain. In 2017, a client asked to help with an ICO and they have been crypto pilled ever since, developing into what is currently the leading professional services firm on chain. In 2023, they opened a new leg of the business to carve out a team dedicated to all things Web3, which is now over 80 strong and servicing near 600 digital asset clients globally. They partner with some of the industry's most influential playerscryptocurrency exchanges, blockchain innovators, Web3 pioneers, and digital asset fundsoffering tailored audit, tax, and advisory services that keep pace with this fast-evolving landscape. Senior Software Engineer (Cloud Infrastructure & DevOps) Location: London (Three days in office, two days wfh) Salary: Approx £100,000 + Bonus While our team builds data pipelines and reporting tools that enable accountancy teams to work efficiently, this role focuses primarily on managing our AWS infrastructure, supporting the team with robust DevOps practices, and mentoring other developers. You'll be the technical expert who ensures our systems are scalable, secure, and well-architected as we transition to microservices and ephemeral infrastructure. Key Responsibilities Cloud Infrastructure & DevOps (Primary Focus) Own and manage our AWS infrastructure, acting as the team's cloud platform expert Be one of the leaders in the migration toward microservices and ephemeral architecture Lead in infrastructure as code Establish and maintain CI/CD pipelines for the team's data and application projects Lead the implementation of monitoring, logging, and alerting systems to ensure reliability in our solutions Manage cloud security, IAM policies, and compliance requirements Provide infrastructure support and guidance to team members working on data pipelines and applications Troubleshoot infrastructure and deployment issues Team Leadership & Mentorship Mentor other developers on DevOps practices, cloud architecture, and infrastructure concepts, jointly with other senior members Support and encourage team members in deploying and managing their data pipelines and applications Conduct code and infrastructure reviews Develop and share best practices for cloud-native development Foster a collaborative learning environment within the team Contribute to technical documentation Collaboration & Technical Enablement Enable the team to build and deploy data pipelines efficiently by providing templates and guidance on infrastructure Work with colleagues to understand their infrastructure needs and provide solutions Translate infrastructure requirements into scalable, maintainable solutions Communicate technical concepts clearly to both technical and non-technical stakeholders Collaborate with accountancy teams to ensure data platform reliability and performance *Technical* 5+ years of software engineering experience with a significant cloud infrastructure focus Understanding of networking, security, and cloud best practices Hands-on experience with AWS services Proficiency with infrastructure as code tools Experience designing and implementing CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins, or similar) Solid understanding of containerization and orchestration (Docker, Kubernetes, ECS) Experience with monitoring and observability tools (CloudWatch, Datadog, Prometheus, or similar) Proficiency in bash Experience supporting development teams with infrastructure and deployment needs Knowledge of microservices architecture and serverless patterns *Leadership* Experience working in teams outside the realm of Software Engineering Demonstrated experience mentoring or managing junior Engineers Strong communication skills with both technical and non-technical audiences Ability to provide clear technical guidance and support Pragmatic approach to balancing technical delivery with business needs Desirable Python experience for infrastructure automation and tooling Familiarity with data pipeline infrastructure (supporting ETL workloads, data warehousing) Experience with data governance and compliance requirements Cloud cost and resource utilisation optimisation Experience migrating from monolithic to microservice architectures What We Offer Opportunity to shape and own the technical infrastructure Small, collaborative team environment where your expertise will have a direct impact Opportunity to create and develop solutions that are new, be impactful Dress for your diary. Flexible working hours. A technology enabled firm. A Family environment, fantastic retention, hiring due to exceptional growth and internal promotions. A Fixed profit-sharing bonus scheme payable to all staff. Brand new central London office. Plenty of socialising opportunities. Free breakfast and fresh fruit provided daily.

2nd /3rd Line EUC Engineer
40,000 - 45,000 depending on experience
Central London
Hybrid working (1 day a week wfh)

About the Role

This is a really exciting role for an ambitious 2nd / 3rd line engineer who wants to join an innovative Managed Service Provider and be at the forefront of providing excellent IT support and consultancy.

You’ll support a diverse client base across the non-profit, finance, media and technology sectors. You’ll play a key part within the Technical Operations team, taking ownership of complex 2nd and 3rd line issues across Apple and Windows estates.

You’ll work with enterprise-grade tooling - including Jamf Pro, Microsoft Intune, Entra ID and Microsoft 365 - while contributing to automation, documentation and build processes. This role offers variety, autonomy and exposure to multiple client environments, giving you the chance to broaden your technical depth while progressing towards senior engineering paths.

With dedicated opportunities for funded training and certifications, you’ll be joining a supportive team that invests heavily in professional development and clear career progression.

We are looking for

A proactive 2nd or 3rd line EUC engineer who loves learning new tech and solving problems. A natural team player who thrives in a client facing environment.

You must have strong hands-on experience supporting both macOS and Windows environments in a 2nd/3rd line capacity

Skilled in supporting and administering Microsoft 365 (Exchange, Teams, SharePoint, OneDrive)
Experience administering device management platforms such as Jamf Pro or Microsoft Intune
Confident troubleshooting complex issues, working independently and across multiple client environments
Scripting in Bash or Python, with Powershell as an advantage

Tech Stack You’ll Work With

Apple & Windows devices, Jamf Pro, Jamf Connect, Jamf Protec
Microsoft Intune, Microsoft 365 (Exchange, Teams, SharePoint, OneDrive)
Entra ID (Azure AD), PowerShell, Bash, Python
Apple Business Manager, Windows Autopilot, Networking fundamentals (DNS, DHCP, Wi-Fi, VPN)

Key Benefits

33 days holiday including bank holidays
Funded training, certifications & professional development
Pension scheme
Hybrid working with flexibility
Diverse project exposure across multi-sector clients, including non-profit, finance, media and technology

If this is you, apply immediately - we look forward to speaking with you

Location: London, UK(2 days in a week from office, Hybrid)

Job type: 6 months contract with possible extension

Active SC Clearance is required.(Mandatory)

We are seeking a high-calibre Azure Architect to lead complex infrastructure transformations. In this role, you won’t just design solutions; you will govern the technical strategy, mentor a dedicated team of engineers, and bridge the gap between deep technical Linux administration and high-level Azure cloud architecture.

Key Responsibilities

• Cloud Strategy & Assessment: Lead end-to-end On-prem/Public Cloud assessments using Azure Migrate. You will be responsible for understanding customer landscapes and designing robust Azure Landing Zones.
• Architectural Leadership: Develop High-Level (HLD) and Low-Level Design (LLD) documents, including comprehensive target architecture diagrams and Bill of Materials (BoM).
• Migration Execution: Drive large-scale migrations of Linux-based workloads to Azure, ensuring solutions align with TCO (Total Cost of Ownership) and ROI goals.
• Linux Mastery: Act as the Subject Matter Expert for Linux environments, managing Kernel tuning, logical volumes, Shell Scripting, and advanced networking (bonding, bridging, and DNS).
• Security & Governance: Oversee Azure IAM, Key Vault, and general security protocols within a UNIX environment to ensure compliant and hardened architectures.
• Performance Optimization: Implement and tune high-performance web stacks using Apache, Varnish for caching, and HAProxy for load balancing.
• Team Leadership: Manage and technically govern a team of 5+ infrastructure engineers, providing guidance on root-cause analysis and complex troubleshooting.

Required Skills & Experience

• Experience: 12+ years in IT, with at least 5+ years specifically focused on Azure Infrastructure (IaaS/PaaS, Networking, Storage).
• Migration Expertise: Proven track record using Azure Migrate and driving complex solutioning for banking, healthcare, or insurance domains.
• Linux Expertise: Advanced knowledge of Linux systems (OS restoration, daemon management, Postfix/SendMail, and file-based storage like NFS/SMB).
• Network/Security: Deep understanding of Azure Networking, SIAM, and data security.
• Troubleshooting: Expert-level ability to perform root-cause analysis on processor, memory, IO, and cluster-related issues.

Desirable Skills

• Automation: Familiarity with Configuration Management tools like Ansible or Chef.
• DevOps: Experience with Git, Jenkins, and Scripting in Python, Bash, or Ruby.
• Modern Web: Hands-on experience with TLS termination and web traffic optimization.

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

Your new company
This client is a globally renowned consultancy.

Your new role
You will be a client-facing DevOps Engineer in an AWS Platform team.
You must be SC eligible to be considered for this role. This role will be mostly remote with occasional travel to the office.

What you’ll need to succeed
You will have:

• Experience with Terraform, Ansible, Bash shell
• Experience working with AWS console and AWS CLI
• Knowledge of AWS networking concepts, VPC, subnets, routing, security groups
• Understanding of AWS security best practices and implement appropriate IAM role

What you’ll get in return
An exciting opportunity to join a globally renowned consultancy, in addition to your own dedicated Hays Consultant to guide you through every step of the application process.

What you need to do now
If you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.
If this job isn’t quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

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