Infrastructure Systems Administrator jobs in United Kingdom

Duty Engineer - Infrastructure Operations Engineer (24/7 Secure Systems) Location: On-site, Northallerton, North Yorkshire Department: Engineering Section: Engineering Reports To: Technical Director Location: Secure UK Defence Environment Contract Type: Permanent Client: Our client is a specialist provider of secure ICT services supporting critical UK Defence systems. Operating...

Duty Engineer - Infrastructure Operations Engineer (24/7 Secure Systems) Location: On-site, Northallerton, North Yorkshire Department: Engineering Section: Engineering Reports To: Technical Director Location: Secure UK Defence Environment Contract Type: Permanent Client: Our client is a specialist provider of secure ICT services supporting critical UK Defence systems. Operating within...

Job Description Senior DevOps Systems Administrator £60,000 £65,000 DOE | Hybrid Working (1x day a month office) Are you an experienced DevOps professional looking for a role where you can genuinely influence architecture, tooling, and ways of working? Do you enjoy owning infrastructure end-to-end rather than simply keeping the lights on? This opportunity offers the chance to join a...

Core Responsibilities: - Design, implement, and maintain scalable IT infrastructure solutions, ensuring high availability and performance of critical enterprise systems. - Conduct deep-level system monitoring, performance tuning, and proactive troubleshooting of complex hardware and software issues. - Manage operating system environments (Linux/Windows Server), apply necessary security patches,...

Core Responsibilities: - Design, implement, and maintain scalable IT infrastructure solutions, ensuring high availability and performance of critical enterprise systems. - Conduct deep-level system monitoring, performance tuning, and proactive troubleshooting of complex hardware and software issues. - Manage operating system environments (Linux/Windows Server), apply necessary security patches,...

Core Responsibilities: - Design, implement, and maintain scalable IT infrastructure solutions, ensuring high availability and performance of critical enterprise systems. - Conduct deep-level system monitoring, performance tuning, and proactive troubleshooting of complex hardware and software issues. - Manage operating system environments (Linux/Windows Server), apply necessary security patches,...

Core Responsibilities: - Design, implement, and maintain scalable IT infrastructure solutions, ensuring high availability and performance of critical enterprise systems. - Conduct deep-level system monitoring, performance tuning, and proactive troubleshooting of complex hardware and software issues. - Manage operating system environments (Linux/Windows Server), apply necessary security patches,...

Core Responsibilities: - Design, implement, and maintain scalable IT infrastructure solutions, ensuring high availability and performance of critical enterprise systems. - Conduct deep-level system monitoring, performance tuning, and proactive troubleshooting of complex hardware and software issues. - Manage operating system environments (Linux/Windows Server), apply necessary security patches,...

Job Description LEAD IT SYSTEMS ADMINISTRATOR £65,000 + BENEFITS MANCHESTER (Hybrid) This is a senior, ownership-heavy role where you will design, build and continuously improve how internal systems and workflows operate. THE COMPANY: I'm partnering with a fast-growing, UK-based financial services organisation that operates at the intersection of banking, technology and fintech enablement....

A leading social media company in London is seeking a Software Engineering Manager to lead technical teams and drive engineering initiatives. The role requires a strong background in coding and proven management experience in infrastructure engineering. The ideal candidate will influence strategy and collaborate across functions to achieve optimal outcomes. Excellent benefits are offered,...

Position: Senior Systems Administrator Location: Cambridge Day Rate: £40 p/h inside IR35 A central government organisation is seeking a Senior Systems Administrator to provide advanced technical leadership across infrastructure, cloud, security and systems operations. Core Technical Responsibilities Systems Administration - Manage and optimise on-prem and cloud-hosted systems in line with...

Job Title: Systems Administrator Location: Scarborough Salary: Competitive Job type: Full Time - Permanent The role: The Systems Administrator will be responsible for maintaining, optimizing, and securing the company's IT infrastructure across multiple manufacturing and office environments. This role supports operational continuity by ensuring systems are reliable, scalable, and compliant...

Systems Administrator / Developer Hull - Office based Do you enjoy owning IT systems end to end rather than just firefighting tickets? Are you comfortable switching between infrastructure support and hands-on development work? Looking for a stable, office-based role where your technical input actually matters? What's in it for you Up to £35,000 basic salary 25 days holiday plus bank holidays 5%...

Job Description You’ll be developing components for a research and trading platform used by quant researchers and portfolio managers, handling data from a wide range of sources, and optimizing performance for simulation and live execution. Python is the primary language used throughout the stack, making strong fluency essential. Core Responsibilities - Contribute to the architecture, testing,...

IT Systems AdministratorHybrid/Edinburgh (infrequent visits to other sites)Up to £45,000 We are looking for a Systems Administrator who can implement, monitor, and support highly available IT solutions across multiple sites.As well as the day to day maintenance, youll be influencing the design and delivery of the on-premise and cloud solutions for all corporate staff. You will be leading numerous...

Freelance Network & System Administrator Location: Winnersh (On‑site with some flexibility) Contract: Freelance / Long‑term mission Security Requirement - UK Home Office SC (Security Clearance) is required for this role Are you a skilled Network & System Administrator looking for a high‑impact freelance assignment? This role offers the opportunity to lead a major infrastructure upgrade at...

Job Title: Systems Administrator Location: Scarborough Salary: Competitive Job type: Full Time - Permanent The role: The Systems Administrator will be responsible for maintaining, optimizing, and securing the company's IT infrastructure across multiple manufacturing and office environments. This role supports operational continuity by ensuring systems are reliable, scalable, and compliant...

Position: Senior Systems Administrator Location: Cambridge Day Rate: £40 p/h inside IR35 A central government organisation is seeking a Senior Systems Administrator to provide advanced technical leadership across infrastructure, cloud, security and systems operations. Core Technical Responsibilities Systems Administration - Manage and optimise on-prem and cloud-hosted systems in line with...

Duty Engineer - Infrastructure Operations Engineer (24/7 Secure Systems) Location: On-site, Northallerton, North Yorkshire Department: Engineering Section: Engineering Reports To: Technical Director Location: Secure UK Defence Environment Contract Type: Permanent Client: Our client is a specialist provider of secure ICT services supporting critical UK Defence systems. Operating within...

Senior DevOps Systems Administrator £60,000 £65,000 DOE | Hybrid Working (1x day a month office) Are you an experienced DevOps professional looking for a role where you can genuinely influence architecture, tooling, and ways of working? Do you enjoy owning infrastructure end-to-end rather than simply keeping the lights on? This opportunity offers the chance to join a well-established yet...