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22 linux systems engineer jobs found

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linux systems engineer
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Outside Spy
May 29, 2026
Duration not stated
QA Test Infrastructure Engineer at Talent Locker, Cheltenham, £Contract Rate
Outside Spy Cheltenham, UK
QA Test Infrastructure Engineer - Tauton, Onsite - Outside IR35 - Highest Security Clearance As a QA Test Infrastructure Engineer, you'll help design, build, and deliver secure digital solutions in highly secure environments. You'll work alongside engineers, architects, and delivery specialists to develop technology that enables faster, safer decision-making for critical operations. Your work may include: Ensuring quality of products as they move from prototype / proof of concept into Production. Analyse infrastructure requirements and architectures; identify test conditions; maintain traceability; log risks. Create infrastructure-focused test strategies and plans defining scope, environments, tooling, automation, and governance entry/exit criteria. Provision and validate test environments in collaboration with DevSecOps, ensuring OS, network, platform services, monitoring, and pipelines align to readiness standards. Design and execute tests across physical infrastructure...
Outside Spy
May 29, 2026
6 Months or more
Senior z/Linux Engineer (RHEL/IBM Z) at Atrium Workforce Solutions UK Limited, Leeds, 6 Months, to £650 per day + Outside ir35
£550 - £650 per day
Outside Spy Leeds, UK
Senior z/Linux Engineer (RHEL/IBM Z) DURATION: Initial 6 months (likely extension) LOCATION: Leeds OR Edinburgh OR Manchester OR Halifax ONSITE REQUIREMENTS: Hybrid - 2 days onsite per week (local office) ENGAGEMENT TYPE: Outside IR35 DAY RATE: Market rates (Competitive) LEGAL RIGHT TO WORK: Candidates must have the legal right to work in the UK. Unfortunately, sponsorship is not available for this role. ATRIUM GLOBAL SUMMARY Atrium Global is supporting a client in the financial services sector in hiring a Senior z/Linux Engineer to join their Core Infrastructure Platform team within Mainframe Services. JOB OVERVIEW This role is focused on the support, stability and continuous improvement of enterprise Linux environments running on IBM Z. You will work across a highly regulated, mission-critical platform, primarily supporting RHEL-based z/Linux systems under z/VM. This is a Linux-first role, requiring strong hands-on system administration experience within enterprise...
Outside Spy
May 29, 2026
Duration not stated
Vulnerability Management Engineer at La Fosse Associates Limited, London, £500-£600 per day
£500 - £600 per day
Outside Spy London, Greater London, England, UK
Vulnerability Management Engineer A global Financial Services Organisation requires a Contract Vulnerability Management Engineer to take ownership of the full vulnerability lifecycle across a complex enterprise environment. This role will focus on identifying, assessing, prioritising, and driving remediation of security vulnerabilities. Day Rate: £500-£600pd IR35 Status: Outside Duration: 6 months initially Travel: Ad hoc to London This VM Engineer will have the following previous experience: Own the end-to-end vulnerability lifecycle across a large enterprise environment, including identification, assessment, prioritisation, and remediation tracking. Drive remediation of Critical and High-risk vulnerabilities in line with defined SLAs and business risk tolerance. Operate across multiple infrastructure domains including Wintel, UNIX/Linux, Storage, and PVDI environments. Ensure systems remain hardened and secure through proactive patching and continuous...
Outside Spy
May 29, 2026
6 Months or more
Applied AI Systems Engineer - Outside IR35 - ideally SC cleared at fortice, Remote, 12 Months, £600 per day
£600 per day
Outside Spy Remote (Remote, UK)
Applied AI Systems Engineer - Contract Opportunity UK-based SC clearance preferred Remote-first, with flexibility to support deployments when required Initial 12-month contract with potential extensions for up to a further 2 years Fortice are looking for an Applied AI Systems Engineer to support the development and deployment of AI-enabled systems across secure operational environments. This is a hands-on engineering role focused on building, deploying, and supporting mission-oriented capability across cloud, on-premise, and air-gapped infrastructure. The position combines software engineering, AI systems, Linux infrastructure, and operational technical delivery within fast-moving, high-accountability environments. The role You'll work across the full delivery lifecycle - from prototyping and deployment through to operational support - helping turn emerging requirements into reliable technical capability. Key responsibilities Designing, building, and...
Outside Spy
May 28, 2026
Duration not stated
Linux Engineer at VIQU IT Recruitment, City, £Contract Rate
Outside Spy City, London, UK
Linux Engineer - 6-month contract - Outside of IR35 - London/remote My Banking Customer is migrating its Linux server estate from Ubuntu 18.04 to 24.04 LTS, with CIS Level 2 hardening enforced across all systems. The programme spans a broad and complex application estate - including core banking platforms, identity infrastructure, integration middleware, containerised workloads, and Legacy line-of- click apply for full job details
Outside Spy
May 27, 2026
Duration not stated
C++ Software Engineer - Outside IR35 - Up to £700 per day at Hunter Bond, London Area, £Contract Rate
Outside Spy London Area, United Kingdom
C++ Software Engineer - Outside IR35 Contract London, UK Long-Term Engagement on a Rolling Contract Hybrid Working We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C++ to their Market Data team! The succesful candidate will have experience in Financial Markets Technology and realtime market data expertise. It's a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C-Suite etc... Responsibilities will include : Architecture and Implementation of Low Latency C++ systems (robust, resilient, accurate, stable and fast) - by doing this you will position the client as a leader in Quant Trading. Work alongside hardware and software teams to build realtime market data processing. Define, implement and enforce SLAs, policies and metrics to monitor the area. Develop Systems, Interfaces and tools to historical market data simulations to increase research productivity....
Outside Spy
May 27, 2026
Duration not stated
Senior Infrastructure Engineer (MOD/UK Security Clearance Req) at Talent Locker, Farnborough, £Contract Rate
Outside Spy Farnborough, England, United Kingdom
Infrastructure Engineer - Farnborough - Highest Security Clearance Required - £550 - £650 Outside IR35 Mid-Level Infrastructure Engineer Senior Infrastructure Engineer A growing technology organisation operating within highly secure environments is looking to hire both Mid-Level and Senior Infrastructure Engineers to support and evolve critical infrastructure platforms across complex programmes. These opportunities suit engineers who enjoy working in security-conscious environments where resilience, availability and compliance are central to day-to-day operations. Infrastructure Engineer The mid-level role is suited to engineers looking to deepen their experience within complex, high-security environments while working alongside senior technical teams. You'll ideally have: Experience supporting enterprise infrastructure environments Strong troubleshooting and operational support capability Exposure to virtualisation, networking and secure systems...
Outside Spy
May 26, 2026
Duration not stated
Data Engineer at Jobgether, United Kingdom, £Contract Rate
Outside Spy United Kingdom
This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Data Engineer in United Kingdom. This role sits at the intersection of software engineering and advanced data systems, supporting global organizations in turning massive, complex datasets into actionable insights. You will design and build scalable data pipelines that power analytics, machine learning, and real-world scientific and business decisions. Working in a fully remote, international environment, you’ll collaborate closely with data scientists, ML engineers, and developers to ensure high-quality, reliable, and well-structured data flows. Your work will directly contribute to impactful domains such as biotech, pharma, and enterprise analytics. The role offers strong ownership across data architecture, engineering best practices, and performance optimization. You’ll be part of a highly skilled team that values clean engineering, scientific rigor, and meaningful impact....
Outside Spy
May 26, 2026
Duration not stated
Linux Engineer at VIQU IT Recruitment, City, £Contract Rate
Outside Spy City, London, UK
Linux Engineer - 6-month contract - Outside of IR35 - London/remote My Banking Customer is migrating its Linux server estate from Ubuntu 18.04 to 24.04 LTS, with CIS Level 2 hardening enforced across all systems. The programme spans a broad and complex application estate - including core banking platforms, identity infrastructure, integration middleware, containerised workloads, and Legacy line-of- click apply for full job details
Outside Spy
May 22, 2026
Duration not stated
Network Engineer at Netrolynx AI, United Kingdom, £Contract Rate
Outside Spy United Kingdom
About The Company Harvey Nash is a global professional services group specializing in technology and digital transformation solutions. With a strong reputation for delivering innovative IT services and consulting, Harvey Nash partners with organizations across various industries to drive digital change, optimize operations, and enhance business performance. The company prides itself on fostering a collaborative and inclusive work environment, emphasizing professional development and technological excellence. Committed to maintaining high standards of quality and integrity, Harvey Nash supports its clients through tailored solutions that meet their unique needs and strategic goals. About The Role We are seeking a highly skilled Network Engineer with a focus on telephony and network infrastructure to join our team on a 12-month contract basis, outside IR35. This hybrid role based in Edinburgh offers an exciting opportunity to work on a variety of large-scale network projects,...
Outside Spy
May 22, 2026
Duration not stated
Linux Engineer at VIQU Ltd, London, £450-£550 per day
£450 - £550 per day
Outside Spy London, UK
Linux Engineer - 6-month contract - Outside of IR35 - London/remote My Banking Customer is migrating its Linux server estate from Ubuntu 18.04 to 24.04 LTS, with CIS Level 2 hardening enforced across all systems. The programme spans a broad and complex application estate - including core banking platforms, identity infrastructure, integration Middleware, containerised workloads, and Legacy line-of-business applications. This role requires someone who can build and maintain the hardening automation pipeline and also operate effectively at the application layer - diagnosing why CIS Level 2 breaks a Docker-based app, a Legacy SFTP chroot, or a low-code platform, and engineering a compliant resolution. Substantial business engagement is required to discover dependencies, obtain formal sign-off, and manage stakeholder expectations across technical and non-technical teams. Key skills required from the Linux Engineer: Linux Expertise: Ubuntu 18.04-24.04 administration and...
Outside Spy
May 22, 2026
6 Months or more
URGENT - eDV Linux Engineer at IO Associates, Gloucester, 12 Months, £550-£650 per day
£550 - £650 per day
Outside Spy Gloucester, Gloucestershire, UK
I have an urgent role for a Linux Engineer holding active eDV Clearance on a contract basis. You'll be responsible for managing, monitoring, and improving Linux-based systems across development and production environments. Rate: Up to £650/day Outside IR35 Location: Gloucester Contract Length: 12 months Key responsibilities: Administer and maintain Linux Servers and infrastructure Troubleshoot system, network, and performance issues Automate routine tasks using Bash, Python, or similar tools Support deployments, security updates, and system monitoring Collaborate with DevOps and engineering teams Requirements: Strong experience with Linux administration (Ubuntu, CentOS, or RHEL) Knowledge of Scripting and automation Familiarity with cloud platforms, networking, and security best practices Experience with monitoring and configuration management tools Please don't hesitate to apply now for more information or a confidential chat!
Outside Spy
May 22, 2026
Duration not stated
Linux Engineer at VIQU IT Recruitment, City, £Contract Rate
Outside Spy City, London, UK
Linux Engineer - 6-month contract - Outside of IR35 - London/remote My Banking Customer is migrating its Linux server estate from Ubuntu 18.04 to 24.04 LTS, with CIS Level 2 hardening enforced across all systems. The programme spans a broad and complex application estate - including core banking platforms, identity infrastructure, integration middleware, containerised workloads, and Legacy line-of- click apply for full job details
Outside Spy
May 21, 2026
Duration not stated
DV Cleared Cloud Engineer - Contract at Experis, Multiple Locations, £525-£550 per day
£525 - £550 per day
Outside Spy United Kingdom
DV Cleared Cloud Engineer Outside IR35 12 Month Contract South West Hybrid £550 Per Day We are seeking an experienced DV Cleared Cloud Engineer to support critical, high-availability systems within secure government environments. This is an exciting opportunity to work across cloud and on-prem infrastructure, improving reliability, observability, automation, and delivery pipelines. Key Responsibilities Improve system reliability, performance, and scalability Collaborate with development and support teams Enhance monitoring, observability, and alerting capabilities Automate operational processes and reduce manual toil Support CI/CD pipelines and development environments Identify and mitigate reliability and availability risks Essential Skills & Experience Terraform and configuration management tools (Ansible, Chef, etc.) Docker and container orchestration (Kubernetes, OpenShift, Docker Swarm) CI/CD tooling such as Jenkins Monitoring tools including...
Outside Spy
May 21, 2026
Duration not stated
Linux Engineer at VIQU IT Recruitment, The City, London, £450-£550 per day
£450 - £550 per day
Outside Spy City of London, London, UK
Linux Engineer – 6-month contract – Outside of IR35 – London/remote My Banking Customer is migrating its Linux server estate from Ubuntu 18.04 to 24.04 LTS, with CIS Level 2 hardening enforced across all systems. The programme spans a broad and complex application estate — including core banking platforms, identity infrastructure, integration middleware, containerised workloads, and legacy line-of-business applications. This role requires someone who can build and maintain the hardening automation pipeline and also operate effectively at the application layer — diagnosing why CIS Level 2 breaks a Docker-based app, a legacy SFTP chroot, or a low-code platform, and engineering a compliant resolution. Substantial business engagement is required to discover dependencies, obtain formal sign-off, and manage stakeholder expectations across technical and non-technical teams. Key skills required from the Linux Engineer: Linux Expertise: Ubuntu 18.04–24.04 administration and...
Outside Spy
May 21, 2026
Duration not stated
DV Cleared Cloud Engineer - Contract at Experis UK, Greater Lincoln Area, £550 per day
£550 per day
Outside Spy Greater Lincoln Area, United Kingdom
DV Cleared Cloud Engineer | Outside IR35 12 Month Contract | South West | Hybrid | £550 Per Day We are seeking an experienced DV Cleared Cloud Engineer to support critical, high-availability systems within secure government environments. This is an exciting opportunity to work across cloud and on-prem infrastructure, improving reliability, observability, automation, and delivery pipelines. Key Responsibilities Improve system reliability, performance, and scalability Collaborate with development and support teams Enhance monitoring, observability, and alerting capabilities Automate operational processes and reduce manual toil Support CI/CD pipelines and development environments Identify and mitigate reliability and availability risks Essential Skills & Experience Terraform and configuration management tools (Ansible, Chef, etc.) Docker and container orchestration (Kubernetes, OpenShift, Docker Swarm) CI/CD tooling such as Jenkins Monitoring tools...
Outside Spy
May 21, 2026
Duration not stated
DV Cleared Site Reliability Engineer at Experis UK, England, £550 per day
£550 per day
Outside Spy England, United Kingdom
DV Cleared Site Reliability Engineer (Outside IR35 Contract - 12 Months) South West England (Hybrid – 3 Days On-Site) | £550 per day | Must hold active DV Clearance We are seeking an experienced DV Cleared Site Reliability Engineer to support critical, high-availability systems within secure government environments. This is an exciting opportunity to work across cloud and on-prem infrastructure, improving reliability, observability, automation, and delivery pipelines. Key Responsibilities Improve system reliability, performance, and scalability Collaborate with development and support teams Enhance monitoring, observability, and alerting capabilities Automate operational processes and reduce manual toil Support CI/CD pipelines and development environments Identify and mitigate reliability and availability risks Essential Skills & Experience Terraform and configuration management tools (Ansible, Chef, etc.) Docker and container orchestration...
Outside Spy
May 21, 2026
Duration not stated
DV Cleared Cloud Engineer - Contract at Experis IT, South West England, £525-£550 per day
£525 - £550 per day
Outside Spy South West England, UK
DV Cleared Cloud Engineer | Outside IR35 12 Month Contract | South West | Hybrid | £550 Per Day We are seeking an experienced DV Cleared Cloud Engineer to support critical, high-availability systems within secure government environments. This is an exciting opportunity to work across cloud and on-prem infrastructure, improving reliability, observability, automation, and delivery pipelines. Key Responsibilities Improve system reliability, performance, and scalability Collaborate with development and support teams Enhance monitoring, observability, and alerting capabilities Automate operational processes and reduce manual toil Support CI/CD pipelines and development environments Identify and mitigate reliability and availability risks Essential Skills & Experience Terraform and configuration management tools (Ansible, Chef, etc.) Docker and container orchestration (Kubernetes, OpenShift, Docker Swarm) CI/CD tooling such as Jenkins Monitoring tools...
Outside Spy
May 20, 2026
Duration not stated
Software Engineer C++ at eFinancialCareers, London, £Competitive Rate
Outside Spy London, UK
C + + Software Engineer - Outside IR35 Contract London, UK Long-Term Engagement on a Rolling Contract Hybrid Working Up to £750 per day (Outside IR35) We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C + + to their Market Data team! The succesful candidate will have experience in Financial Markets Technology and realtime market data expertise. It 's a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C-Suite etc... Responsibilities will include : Architecture and Implementation of Low Latency C + + systems (robust, resilient, accurate, stable and fast) - by doing this you will position the client as a leader in Quant Trading. Work alongside hardware and software teams to build realtime market data processing. Define, implement and enforce SLAs, policies and metrics to monitor the area. Develop Systems,...
Outside Spy
Apr 30, 2026
Duration not stated
DevOps Engineer at Peaple Talent, Day, £450-£550 per day
£450 - £550 per day
Outside Spy Day, NY
DevOps Engineer | AWS | GCP | Azure | CI/CD | Cloud Infrastructure | Digital Agency | Remote | Outside IR35 | £450 – £550 per day Peaple Talent have partnered with a growing digital marketing agency looking to hire an experienced DevOps Engineer to support the design, deployment and optimisation of their cloud infrastructure across multiple environments. As the business continues to expand their technical capability, they are looking for a contractor to join the team delivering scalable and secure infrastructure supporting both backend and frontend applications across client platforms. You will play a key role designing and maintaining cloud environments, managing deployments and ensuring reliable integrations across AWS, GCP and Azure ecosystems within a fast-paced digital environment. You will have a proven background working with cloud infrastructure and DevOps practices, with experience across the following areas; Multi Cloud infrastructure AWS, Azure, GCP...
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