Applicants must hold active and valid Developed Vetting (DV) security clearance to be considered for this opportunity. Unfortunately, applications from candidates without current DV clearance cannot be progressed.An opportu...Read More>>.

Volta is the category-defining, fully vertically integrated AI infrastructure platform – from capital to clusters to software, under a founder-led enterprise. Our mission is The Utility of Compute™: AI infrastructure as dependable and availabl...Read More>>.

We are seeking an experienced Global Infor System Administrator to take ownership of a global Infor CloudSuite A&D ERP platform within a leading international manufacturing organisation.Key Responsibilit...Read More>>.

Overview In this role you will maintain and optimize Linux-based systems at scale to enable rapid, reliable cancer research. You will work with a cross-functional team of researchers and engineers to keep the infrastructure available and ef...Read More>>.

Overview As a Junior Linux Systems Administrator, you will support a global Linux infrastructure for a well-known retail trading business. You’ll monitor mission-critical systems to ensure uptime and performance and help implement new tec...Read More>>.

Overview In this role you will manage Linux (and to a lesser extent Windows) systems, ensuring installation, configuration, and ongoing maintenance. You will drive performance and reliability through innovative solutions while collaborating...Read More>>.

Overview In this role you will support a university’s advancing research infrastructure by applying your Linux expertise to maintain and scale systems. You collaborate with researchers and IT teams to ensure reliable HPC storage, data man...Read More>>.

Overview In this role you will support a high‑performance Linux environment powering ultra‑low latency trading. You will work closely with cross‑functional teams to monitor, optimize, and troubleshoot the production and development pl...Read More>>.

Overview In this role you will maintain and improve the client’s infrastructure within a fast-moving, innovative startup. You’ll ensure security, resilience, and reliable backups while monitoring server health and supporting data reques...Read More>>.

Overview In this role you will co-manage the Linux, Windows, and networking infrastructure for a growing quantitative hedge fund, ensuring high availability and robust security. You’ll work with a scientific, fast-moving team to diagnose...Read More>>.

Overview In this role you support the core infrastructure underpinning leading trading systems for banks and institutional clients. You will join a fast-paced Support team, collaborating with sales and engineering to keep mission-critical s...Read More>>.

Overview In this role you support mission-critical trading infrastructure, working within a fast-paced, entrepreneurial team. You’ll collaborate with sales and engineering to ensure reliable server and network operations for the firm’s...Read More>>.

Overview In this Lead Infrastructure Production Management & Reliability Engineering role, you own the reliability and evolution of Morgan Stanley’s Linux-based infrastructure. You will work across a complex mix of open-source, in-house c...Read More>>.

HR Data & System AdministratorThe initial shortlisting calls will take place on the 22nd October,with interviews scheuled for the 3rd November 2026.We areHestia. We make a difference....Read More>>.

OverviewWe are seeking an experienced Linux System Administrator to join our Infrastructure team. This role is critical in supporting the migration of a key enterprise application from Solaris to Red Hat Enterprise Linux (RHEL), in...Read More>>.

Help shape the future of healthcare by designing the systems that keep hospitals running. Our client is seeking a visionary Systems Architect to drive enterprise-wide infrastructure initiatives supporting critical clinical operati...Read More>>.

Sanderson Government & Defence provided pay rangeThis range is provided by Sanderson Government & Defence. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Base pay range...Read More>>.

Overview Team Lead & Principal Technical Recruiter - Engineering Division Length: 3 years to start Job Description: We are seeking a talented Senior Linux Systems Administrator to support a mid-sized RedHat Lin...Read More>>.

Software Divisional Lead @ SoCode | Technical Recruiting | Digital Transformation, IT, Infrastructure & MSP Location: Cambridge Salary: 65-75K Employment Type: Full time About the Role...Read More>>.

Lenovo in the United Kingdom (Hampshire) is hiring an HPC System Administrator to manage data center infrastructure, Linux/Unix environments, and monitoring to ensure uptime and security. This role blends on-site and remote support for customers....Read More>>.

Applicants must hold active and valid Developed Vetting (DV) security clearance to be considered for this opportunity. Unfortunately, applications from candidates without current DV clearance cannot be progressed. An opportunity is available fo...Read More>>.

Salt Digital Recruitment is seeking a DV-cleared Senior Linux System Administrator to join a security-focused team supporting a large-scale UK national infrastructure big data platform. The role emphasizes on-site delivery with strict DV clearance...Read More>>.

At McLaren Racing, we’re not just here to try to take the chequered flag. We’re here to excite our fans, inspire our people and deliver for our partners. And we’re also committed to evolving our sport, our industry, and our technology, to...Read More>>.

Wavenet is a managed services provider offering cybersecurity, communications, and connectivity that grows with our customers’ businesses – no matter what the future holds. Since 2000, we’ve been keeping businesses connected. A...Read More>>.

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 junio...Read More>>.

DXC Technology in Cheltenham is seeking a Linux System Administrator to join our on-site team. You will handle first and second line incidents, monitor system health, and contribute to security and compliance initiatives.The role requires s...Read More>>.

Senior Linux System Administrator – DV Security Clearance (London or Reading)Title: Senior Linux System AdministratorClient: Leading UK Telecommunications OrganisationEmployment: PermanentLoc...Read More>>.

Systems Administrator - Identity SpecialistIn the Crick's Infrastructure Team.Part of Crick Operations.Key informationJob Title: Systems Administrator – Identity SpecialistDetails of the role:...Read More>>.

Salary: £60,000 - 65,000 per year Requirements 10+ years of progressive, hands-on experience in IT infrastructure, network engineering, and technical operations roles. Mastery of endpoint management using Mic...Read More>>.

Quality Systems ManagerCounty LouthVickerstock are working in partnership with a leading specialist engineering and manufacturing business on the appointment of a Quality Systems Manager...Read More>>.

System AdministratorHenderson WholesaleAttractive Salary and Benefits21 Hour WeekNewtownabbeyWho are we?At Henders...Read More>>.

Senior System AdminLocation: Northern Ireland - Fully RemoteSalary: Up to £55,000Type: PermanentA fantastic opportunity has opened for an experienced Senior Syste...Read More>>.

The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to...Read More>>.

Weekly Hours / Programmed Activities: 37.5Salary Band: Band 3Staff Group: Administrative and ClericalContract Type: PermanentJob Area: Admin and CorporateCompany DescriptionWorking as...Read More>>.

Queen Mary University of London is seeking a Systems Administrator for ITS Research to support the Linux-based HPC cluster, Research services (e.g., GitHub Enterprise) and virtual machines. The role requires strong Linux skills, HPC expertise and...Read More>>.

The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to...Read More>>.

DescriptionAt Ocean Infinity, we're using technology to transform operations at sea, making them safer, more efficient, and more sustainable.We're a team of innovators, problem-solvers, and challengers who believe there is always a b...Read More>>.

In 2019, the founders were working as engineers solving complex cross-domain problems within government organisations. TwinStreamwas formed to bring together their collectiveexpertiseand experience into a single business, focused on deliver...Read More>>.

We’re looking for an experienced Server Systems Administrator to join our Technology Team and play a key role in maintaining the server infrastructure that underpins Wessex Internet’s operations and customer services. This is a h...Read More>>.

Systems Administrator Job Description ACT Entertainment DEPARTMENT: Systems STATUS: Full-Time REPORTS TO: Chief Information Officer LOCATION: Margate, UK (hybrid) SCHEDULE: Mon-Fri, 8:30am-5.00pm tvONE,...Read More>>.

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: Circa £56,115 with benefi...Read More>>.

Wessex Internet is seeking an experienced Server Systems Administrator to join our Technology Team. You will maintain the server infrastructure underpinning our operations and customer services, with hands-on responsibility for Linux and Windows e...Read More>>.

ActioNet is seeking a System Administrator with an Active Secret Clearance to support enterprise IT operations. The selected candidate will provide on-site end-user support and maintain system infrastructure in a secure environment. Locatio...Read More>>.

Job Ref:KC1698122LonSALocation:London, Greater London, United KingdomPostcode:W1W 5PNType of contract:PermanentSalary:£30000.00 to £35000.00 Per...Read More>>.

An opportunity has arisen for an E-Rostering System Administrator to join the Trust's E-Rostering Team at Band 4. This is an 18 month fixed term post providing business as usual cover to maintain operational continuity and ensure essential e-roste...Read More>>.

Salary Range: £35,000.00 To £40,000.00 AnnuallyJob DescriptionACT EntertainmentDEPARTMENT: Systems STATUS: Full-TimeREPORTS TO: Chief Information Officer LOCATION: Margate, UK (hybrid)SCHEDULE: Mon-Fri...Read More>>.

We are seeking an approachable, professional and motivated Workforce Systems Administrator with a drive to provide excellent customer service to join our innovative and dynamic Workforce Systems team at University College London Hospitals. This is...Read More>>.

Main area People Services E-Rostering Department Grade NHS AfC: Band 4 Contract 18 months (Fixed term/ Secondment) Hours Full time - 37.5 hours per week (Mon-Fri 9-5) Job ref 337-NP-9989KS Employer London North West University Healthcare NH...Read More>>.

University College London Hospitals NHS Foundation Trust seeks an approachable Workforce Systems Administrator to join the Workforce Systems team. You will provide high-volume HR/Recruitment/Payroll admin support, deliver ESR assistance to manager...Read More>>.