1 to 25 of 52 Systems Administrator Jobs in London

Systems Administrator - London - ITSA IT Systems Administrator About the Role We are seeking an experienced and proactive IT Systems Administrator to join our IT Department. The successful candidate will be responsible for administering, maintaining, and improving the Company’s office … server environments and enterprise services. Manage users, permissions and security groups. Administer Hyper-V virtual infrastructure. Manage backups. Monitor performance, availability and reliability. Ensure systems remain secure through patch management. Perform server maintenance and upgrades. Troubleshoot and resolve complex infrastructure issues. Participate in infrastructure implementation and upgrade projects. Maintain ...

## Systems Administrator - Identity SpecialistApply: London: Full time: Posted Today: R2942**Salary for this Role:**From £56,115 with benefits, subject to skills and experience.**Job Title:**Systems Administrator - Identity Specialist**Reports to:**Mohammed Bulbulia**Closing Date:**22/Oct/2026 23.59 … Description:****Job Title:** Systems Administrator – Identity Specialist **Details of the role:** **Working pattern**: This is a fulltime, permanent position on Crick terms and conditions of employment. This is a hybrid role with a minimum of 4 days in the office reduced to 3 after 6 months.**Salary ...

Senior Systems Administrator At Forge, we bring together a global portfolio of market-leading businesses and specialist teams, connected by the technology and systems that help them do their best work. We’re collaborative, ambitious, and always looking for smarter ways to build, improve and grow. … looking for a Senior Systems Administrator to join our UK team, based in Shepherd’s Bush, London. We’re looking for someone experienced, proactive, and excited about taking ownership of a world-class tech environment and helping shape how it grows. This is a role that requires ...

Network Systems Administrator/IT Infrastructure Support Engineer - Windows Server, Active Directory, Group Policy, Microsoft 365, Hyper-V, LAN/WAN, Wi-Fi, VPN, SQL Server, Sage. Permanent. South East London/Hybrid 3/2. c£40k +Benefits Established SME operating within the music publishing sector … seeks an experienced Network Systems Administrator/IT Infrastructure Support Engineer (IT Manager) to take hands-on responsibility for the technology environment supporting its London and New York offices. This is a broad individual contributor role covering Desktop Support, Windows Server, Networks, Microsoft 365, Virtualisation and Business ...

Sales Systems Administrator Location: Brentford Salary: £36,000 + benefits Our client, a well-established building supplies company, is looking for a Sales Systems Administrator to join their team on-site in Brentford. This is a great opportunity for someone with strong … communication skills to get hands-on with a company's core sales systems and play a key role in improving business processes. You'll be trained to a high standard on the company's principal IT system, working closely with the Sales Team to drive process improvements and support ...

Network Systems Administrator/IT Infrastructure Support Engineer - Windows Server, Active Directory, Group Policy, Microsoft 365, Hyper-V, LAN/WAN, Wi-Fi, VPN, SQL Server, Sage. Permanent. South East London/Hybrid 3/2. c£40k +Benefits Established SME operating within the music publishing sector … seeks an experienced Network Systems Administrator/IT Infrastructure Support Engineer ("IT Manager") click apply for full job details ...

fast-growing global firm is seeking an experienced Systems Administrator to join the team in Central London. The business embraces flexibility so you will be able to work from home 2 days per week. In this brand-new role, you will … function for the UK and Europe office. You will act as a trusted expert for IT requests in this hands‐on position covering IT systems, devices, security, SaaS and office technology. You will troubleshoot and resolve technical issues, administer Google Workspace and Slack, and manage a fleet ...

promote social and cultural awareness and facilitate interaction between students, helping to develop international friendship. The Role We are looking for an experienced Systems Administrator to join our IT team. This is a varied, hands-on position for someone who enjoys solving problems, supporting users and developing … their technical skills. You will work across IT support, Microsoft 365, networking, systems administration, cybersecurity and IT projects, while supporting specialist technology used across our accommodation, hospitality and events operations. You will work closely with the IT Manager and wider organisation to ensure our systems remain secure, reliable ...

more information, visit www.shield.ai. Follow Shield AI on LinkedIn, X, Instagram, and YouTube. Job Description: Shield AI is seeking a highly autonomous Staff Systems Administrator to serve as the accountable technical owner for enterprise IT infrastructure and end-user computing within a dedicated, security-sensitive entity environment. … This senior individual contributor will design, implement, operate, secure, and continuously improve on-premises systems, cloud platforms, identity services, networks, and endpoints while preserving required legal, operational, information-security, and access boundaries. The role combines deep infrastructure ownership with hands-on service delivery. The successful candidate will translate security ...

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 ...

Abtrace Ltd. is seeking a Systems Administrator to own our internal infrastructure, identity and endpoint estate in a hands-on role within a small team. You will manage AWS, Microsoft 365, Entra ID and device management across Windows and macOS, ensuring security, audit readiness and runbooks. This ...

Synapri are working with a well-recognised global brand looking to hire aD365 Systems Administrator to join their IT department on a permanent basis. Within this role you will be responsible for maintaining, managing and optimising their Microsoft Dynamics 365 Finance & Operations environments and integrated business systems. … technical support, you will collaborate with internal technology teams and third-party partners to deliver effective solutions, drive continuous improvement and ensure their systems remain robust, secure and fit for purpose. This is a great role to take ownership of critical business applications, contribute to technology innovation and help ...

Side is seeking an IT Systems Administrator to join its global IT Support team in London. You will maintain corporate servers, network infrastructure, and desktops (Windows, Mac, Linux) and manage Active Directory, Office 365, Intune, and security controls. The role requires 5 years' experience in QA/ ...

Lomar Shipping Limited is seeking an experienced IT Systems Administrator to join our IT Department in London. You will be responsible for administering, maintaining, and improving the company’s office and vessel IT infrastructure to ensure high availability, security, and reliability. You will manage Windows Server environments ...

technology actively supports operations worldwide. For more information, visit www.shield.ai. Follow Shield AI on LinkedIn, X, Instagram, and YouTube. Job Description: The Systems Administrator is responsible for supporting, securing, and optimizing enterprise IT operations. This includes end-user system support, infrastructure maintenance, IT asset lifecycle management … discipline, and a collaborative mindset to support a modern, scalable, and secure IT environment. What you'll do: Provide hands-on desktop, server, and systems administration support for Windows and Linux environments. Install, configure, and troubleshoot hardware and software issues across end-user devices and server systems. Administer user ...

Synapri is seeking a D365 Systems Administrator to join their IT department on a permanent basis. You will maintain and optimise D365 Finance & Operations environments and related systems, ensuring reliability, security and performance. Role involves system integrations, automation, and collaboration with internal teams and third-party ...

Abtrace is seeking a Systems Administrator to own internal infrastructure, identity and endpoint estate. You will manage AWS, Microsoft 365, Intune and hybrid work practices in a small team, handling support tickets and security/compliance in a NHS data‐intensive environment. The role requires hands ...

maximise funding. We work with over 600 primary care practices across the UK, covering 7.5 million patients. The Role We are seeking a Systems Administrator to own our internal infrastructure, identity and endpoint estate, and to keep the internal support pipeline moving alongside it. This … hands‐on role in a small team. You will be responsible for the systems and also for the tickets they generate. There is no separation here between designing a control and being the person who applies it, or between owning the endpoint estate and unlocking an account at short ...

Forge in London (Shepherd’s Bush) seeks a Senior Systems Administrator to own and optimize a world-class IT environment across the UK and South Africa. You will manage Windows and Mac, cloud platforms, and security, with hybrid work and frontline accountability. You’ll report ...

Shield AI is seeking a highly autonomous Staff Systems Administrator to own enterprise IT infrastructure and end-user computing in a security-sensitive environment. You will design, operate, secure, and improve on-prem and cloud infrastructure, identity services, networks, and endpoints with strong adherence to compliance ...

Francis Crick Institute Ltd in London is seeking a Systems Administrator – Identity Specialist to lead IAM initiatives across on‐prem and cloud services. You will drive identity platforms (AD/Okta), manage DSAR workflows, and collaborate with SOC and cross‐functional teams to ensure secure, scalable access ...

Francis Crick Institute in London seeks a Systems Administrator – Identity Specialist to lead identity services, DSAR handling, and security improvements within the Infrastructure and Cloud Platforms team. The role combines technical leadership with hands-on administration across Windows and Linux environments. You will drive IAM roadmaps, coordinate ...

Digitech is seeking a Systems Administrator in Greater London to own the infrastructure from user configuration to CI. You will thrive in a startup environment, handling ad-hoc duties across Operations and Development to keep the client’s stack fit for purpose as the business scales. ...

managing access, devices, and day-to-day troubleshooting. The role is hands-on within a small team, with a clear path toward a Systems Administrator position and involvement in our security and audit programme. Based in Paddington, the company operates under high security and compliance standards, including ...

York, with rapid growth expectations to hundreds. About The Role Hiring sits at the centre of Volta's growth. As our Ashby Systems Administrator, you will take full ownership of the Ashby environment behind every hire we make, supporting the teams building our AI factories across Europe … problem-solving, with the ability to turn evolving requirements into working configurations Clear communication with both technical and non-technical users Experience scaling recruitment systems across multiple countries, and integrating Ashby with HRIS and BI platforms, would be a strong advantage What We Offer At Volta, we believe people ...