System Administrator/SysAdmin/Head of IT | Infrastructure, Networks & End-User Support | Linux & Microsoft Location: Cheltenham (Onsite) Package: £35,000 - £40,000 Up to a 10% Bonus Benefits Eligibility: Must be able to obtain and maintain UK Government SC clearance - ILR or British Passport Please only apply if you have commercial experience with all of the following Managing internal IT systems across desktop, server, network and cloud environments Administering both Linux and Microsoft operating systems Using network and systems management tools Implementing and maintaining strong security controls across an IT estate Installing, configuring and troubleshooting hardware, operating systems, networks and applications Producing clear, accurate technical documentation and procedures This is an excellent opportunity for a motivated System Administrator to join a well-established, highly reputable technical organisation that prides itself on innovation, quality and a close-knit team culture. Youll become a key part of a company that genuinely invests in its people, encourages new ideas, and gives you the autonomy to shape how internal systems evolve. The role offers the chance to work in a modern, technology-driven environment where reliability, security and continuous improvement are at the heart of everything they do. Youll be hands-on across infrastructure, networks, platforms and end-user support, while also contributing to a growing technical service offering that helps clients strengthen their systems. If youre looking for a role where you can take real ownership, work with modern technologies, and be part of a supportive team that values technical excellence - this is a great opportunity. Required Background Previous commercial experience in a System Administrator or IT Administrator role Background in IT, computer science, information systems or equivalent hands-on experience Experience supporting office, network, server and cloud environments Familiarity with infrastructure-as-a-service platforms Experience with: Linux and Microsoft environments Commercial ticketing systems Wiki / knowledge-base platforms Mobile Device Management (MDM) solutions Network security and firewall technologies Remote access technologies Ability to identify and respond to security-related issues and incidents Strong troubleshooting and diagnostic skills across hardware, software and networks Very Important Notes This is a fully onsite position based in Gloucestershire Occasional travel to other UK client sites is required (fully expensed) Candidates must be eligible for and capable of holding UK Government Security Clearance (SC) This is a hands-on role with active ownership of internal IT systems (not suitable for remote-only or purely strategic profiles) You will help maintain and document processes aligned to recognised standards Must-Haves Experience managing internal IT systems (end-user, server, network and cloud) Hands-on administration of Linux and Microsoft environments Experience with server, desktop, network and cloud support Knowledge of network security and firewall technologies Experience using ticketing systems and knowledge-base tools Experience with MDM platforms Ability to install, configure and troubleshoot hardware and software Experience maintaining documentation, procedures and system records Excellent communication skills and a proactive, service-focused approach Bonus Experience Exposure to delivering technical remediation or improvement work for clients following technical assessments Experience collaborating with assessment or consultancy teams to turn findings into practical actions Prior involvement with ISO-aligned processes (e.g. ISO27001) Microsoft desktop or cloud certifications Experience supporting or mentoring junior team members Hands-On Experience With Office, desktop, server and network administration Linux and Microsoft operating systems Infrastructure-as-a-service cloud platforms Network security and firewall technologies VPN / remote access solutions Ticketing and knowledge-base systems Mobile device management tooling Hardware, operating system and network configuration and updates What Youll Be Doing Infrastructure & Systems Administration Manage and support internal IT systems across the organisation Monitor the health, stability and security of the IT estate and respond to alerts Maintain performance and resilience of core internal platforms Implement appropriate security controls and help ensure systems remain compliant with internal standards Keep IT processes and procedures fully documented and up to date Service Quality & Remediation Delivery Assist clients in implementing technical fixes and improvements following technical assessments Deliver hands-on technical remediation work where required Produce documentation, templates and supporting materials for service delivery and reporting Translate technical findings into practical, actionable remediation tasks Provide clear, high-quality documentation for delivery, project management, sales activity and client needs Collaboration & Stakeholder Support Work closely with internal staff to support their day-to-day IT requirements Liaise with technical teams to streamline delivery of remediation and improvement activities Support leadership with continuous improvement initiatives across IT and related services Contribute to the development of scalable processes and frameworks as service demand grows What Theyre Looking For A reliable, hands-on System Administrator with solid technical breadth Someone comfortable owning internal IT operations end-to-end in an onsite environment A problem-solver who enjoys getting into the detail of technical issues and seeing them through to resolution A clear communicator who can support colleagues at all levels of the organisation Someone organised, diligent and security-aware, with a strong sense of ownership and accountability A motivated individual who values being part of a close-knit, onsite technical team If you match the above criteria and would like a confidential discussion about the role, please get in touch.