windows system administrator

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10,000 windows system administrator job listings in United Kingdom. Find daily updated positions from leading job boards.


  • london, United Kingdom Quant Capital Full-time

    Windows Systems Administrator – Quant Trading 80,000 + benefits and bonus Quant Capital is urgently looking for a Windows Systems Administrator to join our high profile client. This is an environment of Google or a startup where tech is number 1 with a huge budget allocated towards this. The firm is known globally for its attitudes and rigour more...


  • London, England, United Kingdom Global Relay Full-time

    Who we are: For over 25 years, Global Relay has set the standard in enterprise information archiving with industry-leading cloud archiving, surveillance, eDiscovery, and analytics solutions. We securely capture and preserve the communications data of the world’s most highly regulated firms, giving them greater visibility and control over their information...


  • London, England, United Kingdom Global Relay Full-time

    Global Relay is seeking a Senior Windows Administrator to lead design, deployment, and support of Windows environments, focusing on Exchange, Active Directory, and desktop management. The role collaborates with Operations, Security, and IT teams to ensure high availability and robust incident response.Office-based, with minimum 3 days in the UK office per...


  • London, England, United Kingdom Shield Full-time

    Shield AI is seeking a Systems Administrator to support, secure, and optimize enterprise IT operations across Windows and Linux environments. You will manage end-user support, infrastructure maintenance, asset lifecycle processes, and mentor junior team members in a fast-paced, mission-driven setting.You'll work with AD/Azure AD, IT asset management tools,...


  • Lincolnshire, England, United Kingdom Symmetric Recruitment Ltd Full-time

    Symmetric Recruitment Ltd in Lincoln is seeking a hands-on Systems Administrator to join a hybrid full-time team. You will be the first point of contact for technical issues, collaborating with senior engineers on incident resolution, migrations, and upgrades.You will administer Windows Server and/or Linux environments, support Microsoft 365, and contribute...


  • London, England, United Kingdom Client Server Full-time

    Lead Systems Administrator (Windows O365 Security) London /WFH to £50kAre you a hands-on IT professional with strong Microsoft 365 and infrastructure experience, looking to combine technical ownership with team leadership in a purpose-driven organisation?You could be progressing your career, taking ownership of the IT infrastructure for a charity that...


  • Northam, England, United Kingdom Spectrum IT Recruitment Limited Full-time

    A global technology business is looking for a Senior Windows Server Administrator to become the go-to escalation point for complex Wintel infrastructure issues.This is a role for someone who enjoys deep technical troubleshooting, not just keeping the lights on. You will be joining a business with a sizeable, established technology environment and current...


  • Portsmouth, England, United Kingdom Spectrum It Recruitment (South) Full-time

    A global technology business is looking for a Senior Windows Server Administrator to become the go-to escalation point for complex Wintel infrastructure issues. This is a role for someone who enjoys deep technical troubleshooting, not just keeping the lights on. You will be joining a business with a sizeable, established technology environment and current...


  • Southampton, Hampshire, United Kingdom Spectrum IT Recruitment Full-time

    A global technology business is looking for a Senior Windows Server Administrator to become the go-to escalation point for complex Wintel infrastructure issues. This is a role for someone who enjoys deep technical troubleshooting, not just keeping the lights on. You will be joining a business with a sizeable, established technology environment and current...


  • London, England, United Kingdom HCL Technologies Limited Full-time

    HCLTech is a global technology company, spread across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences...


  • Birmingham, England, United Kingdom ITAC Solutions Full-time

    ITAC Solutions in Birmingham, AL is seeking a Senior Technical Support – Systems Analyst to own complex IT escalations and drive permanent fixes. You will troubleshoot Windows, Microsoft 365, Intune, networking, and cloud issues, acting as the final escalation point and mentoring junior technicians.The role emphasizes proactive problem solving, cross-team...


  • london, United Kingdom Quant Capital Full-time

    Windows Identity Systems Engineer London | Industry-leading compensation (discussed on call)Quant Capital is leading the search for a Windows Identity Systems Engineer for one of the most technically respected firms in the trading space.This is a hands-on identity engineering role focused on securing and improving identity across a hybrid Microsoft...


  • Great Wyrley, England, United Kingdom Chase Taylor Full-time

    Chase Taylor are recruiting an experienced Purchasing Administrator on behalf of a well-established manufacturing company in the window and door industry. Fenestration experience is essential, including knowledge of hardware, profiles and related components.The role supports the purchasing function in a busy manufacturing environment, ensuring materials meet...

  • System Administrator

    16 hours ago


    London, England, United Kingdom Kroo Bank Full-time

    OverviewThe Kroo is growing and we'd love to hear from you if you're interested in joining us on our journey! As a Systems Administrator within our IT team, you will be responsible for providing support to our 300 end users and ensuring their IT equipment and systems are working correctly by ensuring the reliability, security, and efficiency of our IT...

  • System Administrator

    16 hours ago


    Guildford, England, United Kingdom Actica Consulting Full-time

    As a Systems Administrator, you will be part of the Actica IT Team, supporting and developing our technology environment. This role offers a balance of hands‑on responsibility and ongoing learning, making it suitable for graduates as well as candidates who have already worked in IT support, systems administration, or similar roles. You will gain experience...

  • Systems Administrator

    20 hours ago


    West Midlands, United Kingdom NFU Mutual Full-time £42,000 - £50,000 Contract

    About the roleNFU Mutual have an excellent opportunity for a Systems Administrator to join the General Insurance (GI) Sales Development department working in the GI Training and Competency (T&C) Team on a full time, permanent basis. The GI T&C team focus on supporting the sales and customer service functions within NFUM’s Agency Network of employed and...


  • Birmingham, United Kingdom Tower Hill Partnership Medical Practice Full-time

    Job summary Tower Hill Partnership is looking for an enthusiastic IT Systems Administrator to cover maternity leave for a period of 1 year, starting in the New Year 2027. We are looking for a full time position of 37.5 hours.The candidate will be involved in the general running of the Practice's IT systems and be available for queries and support from...

  • Systems Administrator

    22 hours ago


    Washington, England, United Kingdom Gm Performance Power Units Full-time

    The Systems Administrator is responsible for the deployment, administration, and operational support of enterprise server, endpoint, and conference room technology across on-premises and cloud environments. While the role supports Microsoft Windows Server platforms and virtualization technologies, a significant focus is placed on modern endpoint management...

  • System Administrator

    24 hours ago


    London, United Kingdom Randstad Technologies Recruitment Full-time

    Advert Job Title: System Administrator (Endpoint Support) Location: London- Hybrid 3 days on site a week Contract Type: 6-Month Contract About the Role: We are seeking a skilled and proactive Software Distribution & Endpoint Support Specialist for a 6-month contract based in London. In this critical role, you will be responsible for delivering reliable...


  • London, England, United Kingdom Formula 1 Full-time

    Role Overview:We are looking for a Systems Administrator to join our IT department. Reporting into our IT Systems Manager, this role will ensure Formula 1's IT Systems are correctly commissioned, maintained and operated so that it continues to meet Formula 1's on-going Business and Production objectives.Main Duties and Responsibilities:Upgrading, installing...