IT - Administration jobs in the United Kingdom

NBCUniversal seeks a Network Engineer in Bedford to manage Cisco routing, switching, and wireless infrastructure. Requires CCNA and experience with large-scale network design, troubleshooting, and coordinating with vendors and stakeholders.

Senior Network Administrator role in London (on-site) paying £70,000-£85,000 plus pre-IPO stock options. Requires 8+ years with Palo Alto and Aruba, UK SC clearance, and expertise securing classified defence networks.

Join Goodlord as an IT Support & Security Analyst in Sheffield/Lincoln (hybrid). Handle helpdesk, macOS/Windows/ChromeOS admin, and security compliance (ISO 27001). Grow with a certified Great Place to Work.

Join Menlo Security as an AI Security Engineer in Bracknell, UK. Build automated data pipelines, train ML models, and develop evaluation harnesses to protect against AI-driven threats. Requires Python and 2-4 years experience.

Hands-on Data Centre Engineer role in Hayes, London, supporting critical infrastructure including GPUs, networking and storage. Requires Linux, TCP/IP and hardware troubleshooting skills. Rota shifts Mon-Sun.

Join a London team as an Application Support Specialist, providing technical support for Legal Applications, JIRA, Confluence and GitHub. Requires IT degree or equivalent experience, ITSM and SDLC knowledge, strong troubleshooting and communication skills.

Join Wayve as a Platform Engineer in London, building Azure-based cloud infrastructure and CI/CD automation. Requires 2-5 years DevOps experience, IaC skills (Terraform/Ansible), and a passion for reliable, scalable platforms.

Join Capstone's Infrastructure team as Desktop Support in London. Bring 3-5 years of IT experience, strong Windows, Microsoft 365 and Intune skills, and a service-first mindset. Enjoy wellness, training and commuter benefits.

Join as a Network Operations Engineer in London, monitoring ground station health, triaging faults and building dashboards with Grafana and Prometheus. Requires Linux, Python or Bash scripting and calm communication under pressure.

Join Iru as a Solutions Engineer in London, advising clients on Apple device management and MDM. Requires 3+ years of Apple device expertise, strong communication skills, and hybrid work (3 days in office).

Join Checkout.com as Engineer I, Finance Technology in London, focusing on Workday Adaptive Planning. Support budgeting, forecasting, and data integrations in a hybrid role. Early-career opportunity to grow finance systems expertise.

Lead technology risk oversight for AI and M&A at a global organisation in London. Provide 2nd Line assurance, shape AI governance frameworks and report to senior partners. Strong IT risk, COBIT and stakeholder skills required.

Lead product analytics at ASOS as a Senior Product Analyst in London. Drive A/B testing, own KPIs, and shape product strategy with SQL, Python, and data storytelling. Enjoy hybrid flexibility and strong benefits.

Join Legora as a Workplace Technology Specialist in London. Provide hands-on IT support across macOS, AV and meeting rooms in a fast-paced startup. 3+ years of IT support experience required.

Join MARGO in London as a French-speaking Front Office IT Support Engineer. Support mission-critical trading systems with Linux/UNIX and SQL skills. Fluent French and English required.

Join PCI as a Desktop Support Specialist II in Tredegar, UK. Resolve hardware, software and network issues, support end users and handle PC setups. Requires a computer-related degree or helpdesk experience.

Lead Security Engineer role in London to own identity and access, macOS device security, SaaS and AI guardrails, and ISO 27001/SOC 2 audits. Requires 7-8 years of hands-on security experience with SSO, MFA, MDM and EDR.

Trainline seeks a Senior Product Security Engineer in London to own the product security roadmap and application vulnerability management. Requires mobile/API security expertise, OAuth 2.0, and hands-on SAST/DAST testing.

Braze seeks a Systems Engineer II in London to lead enterprise platform projects, automate identity and access management, and implement AI-enabled tooling. Requires expertise in Okta, SaaS administration, Python or PowerShell, and security frameworks.

Immersive One seeks a Cloud Security Engineer (remote, UK) to build and improve cloud security labs and content. Requires hands-on Azure, AWS, GCP or Kubernetes expertise, cloud SIEM, CSPM and Terraform skills.