87 IT Systems Administration Jobs in London, United Kingdom

Role highlights

• Serve as a systems administrator for production Windows and Linux environments, including server builds, patching, configuration management…
• Experience managing switches, routers, firewalls, and other network equipment at L2/L3, including connectivity between international data c…

Role highlights

• Role Summary: The Systems Engineer is responsible for management and support of various infrastructure technologies on the distributed syst…
• Technical Deep knowledge and proven experience of managing an enterprise Linux estate in a corporate environment (especially Red Hat-based)…

Role highlights

• The Senior IT Systems Engineer sits at the heart of that operation, covering everything from Microsoft 365 and Entra ID…
• Colleagues across every function rely on the systems and infrastructure this team manages day to day, and as BLC continues…

Role highlights

• Infrastructure Collaboration: Partner with network, systems, and security teams to support local IT infrastructure, site onboarding, and op…
• Your Impact Advanced Troubleshooting: Lead the resolution of high-impact and complex technical issues across desktop, network, and SaaS env…

Role highlights

• The Systems Engineer will initially focus on day-to-day system administration and supporting end-user systems, with the opportunity to grow…
• This job provides exposure to: A large, Linux-centric, multi-tenant AWS cloud environment Configuration management tools such as Ansible, a…

Role highlights

• Main Responsibilities: Administer and support cloud- based systems including Microsoft 365, Azure AD, Intune Maintain endpoint management p…
• Monitor system performance, troubleshoot issues, and ensure high availability.

Role highlights

• A day in the life On a “typical” day Engineers might: Drive the design and implementation of new services Use…
• Basic Qualifications - Experience in building scripts, tooling, and automation for large-scale computing environments - Experience in syste…

Role highlights

• This is an excellent opportunity for a senior engineer who enjoys hands on technical ownership, complex troubleshooting, and working across…
• Proven ability to troubleshoot complex, cross platform issues involving identity, servers, virtualization, and cloud services.

Role highlights

• As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and…
• The position provides occasionally Tier 1 helpdesk support for the previously mentioned systems.

Role highlights

• 1+ years troubleshooting physical security systems in an enterprise environment to include Access Control, Key Box Management, and Video su…
• What you’ll do: In this role you will be working as part of a team to monitor, maintain, and test…

Role highlights

• Responsibilities Manage and maintain corporate IT infrastructure , including SaaS applications, cloud services, and internal systems .
• This role requires technical expertise in IT systems, cloud-based tools, and security best practices to optimize and scale internal operati…

Role highlights

• This is an excellent opportunity for a senior engineer who enjoys hands on technical ownership, complex troubleshooting, and working across…
• Proven ability to troubleshoot complex, cross platform issues involving identity, servers, virtualization, and cloud services.

Role highlights

• What you'll do We are seeking a Systems Engineer to support payload systems development and provide systems engineering coordination for…
• This role serves as a key interface between payload engineering, suppliers, and internal spacecraft teams, helping ensure requirements alig…

Role highlights

• The impact you’ll have: As a Senior System Administrator, reporting directly to the Senior Business IT Manager, you'll be responsible…
• Your day-to-day: Support, and administrate a large-scale, multi-platform estate encompassing Google Workspace, Microsoft Azure, and Jamf Pr…

Role highlights

• Responsibilities Plan/execute technical projects to make our Linux trading systems (hardware, network, OS, etc) faster, adaptable, and more…
• As a full-time Systems Engineer, you’ll work on projects that impact our live trading and research and allow them to…

Role highlights

• Working closely with security, platform and software engineering teams to deliver tools and systems the business can rely on.
• Strong experience with identity and access management, working with tools like Okta to support SSO, MFA and user lifecycle management.

Role highlights

• The skill set required is industry typical 'systems administration', including working knowledge of various networking systems.
• The assigned team supports and maintains a variety of large and global scale systems for building management and physical security…

Role highlights

• Server Support (L2) Perform OS-level troubleshooting for Windows and Linux servers.
• Strong hands-on experience in: Networking: Switching, routing, VLANs, Wi-Fi, VPN EUC: Windows/macOS, M365, AD, endpoint security Servers: W…

Role highlights

• Desired Qualifications Experience with: CA-1 CA Vantage CA Disk TDMF/TDMFS NetView System Automation (SA z/OS) CA OPS/MVS Knowledge of stor…
• The role also involves infrastructure design, hardware upgrades, automation initiatives, and proactive monitoring to ensure maximum perform…

Role highlights

• Desired Qualifications Experience with: CA-1 CA Vantage CA Disk TDMF/TDMFS NetView System Automation (SA z/OS) CA OPS/MVS Knowledge of stor…
• The role also involves infrastructure design, hardware upgrades, automation initiatives, and proactive monitoring to ensure maximum perform…

Role highlights

• Essential Skills Proven experience in enterprise storage and backup environments.
• Experience supporting database and application teams in data protection requirements.

Role highlights

• Each project is carefully picked to challenge and develop both your in-depth understanding of Linux systems and your software engineering…
• As a Linux Engineering intern, you'll work side by side with full-timers to learn how we build and maintain the…

Role highlights

• DATA CENTER OPERATIONS (DCO) Diagnosing hardware and network problems followed by physical repairs Troubleshooting events within internal S…
• We're expanding our Infrastructure Operations team and seeking Data Center Technicians.

Role highlights

• IT ADMINISTRATOR London UK The Role The IT Systems Administrator is part of a team of global IT Support specialists…
• Windows server administration experience including configuration and management of federated Active Directory and Azure, DNS, DHCP, IIS, FT…

Role highlights

• This is a hands-on engineering role that sits at the intersection of cloud infrastructure, security, networking and modern workplace techno…
• 🚀 Service Delivery & Continuous Improvement Provide 2nd and 3rd line support across Azure and cloud platform technologies.