Payroll & HCM System AdministratorCockermouth Hybrid About James WalkerJames Walker is part of the James Walker Group of Compani...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 In this role, you ensure the stability of critical applications by performing production support and automation for container-based environments. You will work with platform, engineering and delivery teams to provide seamless infra...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 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 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 design, implement, and support scalable technology solutions for on‑premises and Azure environments. You’ll build self-service capabilities and automate deployments to improve efficiency. You’ll ensure...Read More>>.

Overview In this role you will support and automate a diverse enterprise tech stack for a high-profile systematic fund. You’ll manage Windows and Linux environments, storage and clustering solutions, and a modern communications platform....Read More>>.

Overview In this junior role, you will support the staff’s technology and user experience across Windows/Linux desktops, servers, and enterprise apps. You’ll contribute to automation-driven IT operations and rapidly grow your technical...Read More>>.

Overview In this role you will own the Linux and HPC platform stack, delivering secure, reliable enterprise and research-computing environments. You will manage Linux systems, HPC clusters, and workload scheduling while ensuring performance...Read More>>.

Overview In this role you lead the administration and optimization of complex Cisco-based networking, voice, and AV services across enterprise and secure environments. You will act as a technical escalation point for operations and projects...Read More>>.

Overview As Senior Network Administrator at KBR, you will manage and secure the enterprise network infrastructure to ensure reliability and performance. You will work within cross-functional teams to support data centre, cloud, and hybrid c...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 own the Windows infrastructure that underpins critical business operations. You will maintain and improve a mixed Windows and Linux environment across physical and virtual machines, with a focus on Windows ser...Read More>>.

Overview In this role you will provide operational support for large, global-scale systems used in building management and physical security. You will work with a ticket-based workflow to troubleshoot and resolve issues, collaborating with...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 shape and operate a university-wide research computing service, building and evolving Linux-based infrastructure for HPC, HTC, and emerging AI/GPU platforms. You will work with researchers and cross-functional...Read More>>.

Overview In this role you will own and govern core IFS master data to support global business processes. You will work across functions to ensure data is accurate, consistent, and ready for day-to-day operations, including onboarding new un...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 will design, manage and support Global Relay’s Windows environments with a focus on corporate Exchange and Active Directory. You will work closely with cross-functional teams to ensure high availability, security...Read More>>.

Overview In this role you lead the IT Helpdesk and Systems Administration for a renowned systematic hedge fund, supporting Europe and Asia-Pacific offices. You will oversee a high-tech Windows and Linux environment, storage and clustered co...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 a diverse tech environment spanning Windows and Linux servers, VMs, containers, and storage-heavy infrastructure. You will work with a cross-functional team to maintain network services, architecture, and o...Read More>>.

M.C. Dean in the United Kingdom is seeking a System Administrator 2 to join the Security and Electronic Systems (SES) unit. You will configure and maintain Physical Access Control, CCTV, PSIM, and other electronic security systems for client sites...Read More>>.

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, e...Read More>>.

Senior DevOps Systems AdministratorGuildford -1 day a month on-site£60,000 - £65,000 + Private Medical Insurance + Holiday + PensionThis is an excellent opportunity for an experienced DevOps Systems Administra...Read More>>.

United States Digital Space LLC is seeking a TA / People Systems Administrator to optimise Ashby and scale our recruitment operations in a data-driven way. You'll own day-to-day Ashby administration, build dashboards, maintain data integrity and p...Read More>>.

At Octopus Energy Generation (OEGEN), we're passionate about powering a sustainable future. As pioneers in the renewable energy space, we don’t just invest in utility-scale projects; we invest in people, communities, and a greener tomorrow....Read More>>.

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...Read More>>.

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 NH...Read More>>.

Company: Global Retail Company Position: Infrastructure Specialist Contract: 1-year fixed term contract Location: London (Hybrid) Salary: 60,000 – 70,000 GBP + 10% Bonus...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>>.

Career Moves Group I B Corp™ is partnering with a leading London-based property real estate company to recruit an experienced Business Systems Analyst. You will own horizon platform administration, collaborate with stakeholders, and drive system...Read More>>.

M.C. Dean, Inc. is hiring a System Administrator 1 for its Security and Electronic Systems (SES) unit.You will join a TOC team configuring and maintaining CCTV, access control, PSIM and related electronic security services for federal, loca...Read More>>.

About M.C. Dean M.C. Dean is Building Intelligence®. We design, build, operate, and maintain cyber-physical solutions for the nation’s most mission-critical facilities, secure environments, complex infrastructure, and global enterpr...Read More>>.

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 t...Read More>>.

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 i...Read More>>.

Shield AI is seeking a highly autonomous Staff Systems Administrator to own enterprise IT infrastructure and end-user computing in a security-sensitive entity environment. You will design, implement, secure, and continuously improve on-premises sy...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 highly autonomous Staff Systems Administrator to own enterprise IT infrastructure within a security-sensitive entity. You will design, implement, secure, and operate on-premises and cloud platforms, ensuring audit-ready evid...Read More>>.

Abtrace Limited in London is seeking a Systems Administrator to own our internal infrastructure, identity and endpoint estate, and to keep the internal support pipeline moving. This hands-on role covers AWS, Microsoft 365, Intune, Jamf/Kandji, and...Read More>>.

Network & Computer Systems Administrators Wanted | Remote Contract Opportunity | AI Research Project About the Opportunity We're partnering with one of the world's leading AI laboratories to recruit experienced Network and C...Read More>>.

University of Glasgow is seeking a Systems Administrator to support the SUERC IT infrastructure at the Glasgow site. The role focuses on servers, networks, storage, and collaboration tools to ensure reliable services for 90–100 staff. You will w...Read More>>.

Pertemps Coventry Commercial is seeking a Waste Systems Administrator at Gaydon, Warwickshire to support Waste and Recycling One and Smart World platforms, coordinate audits, and prepare reports for KPIs. You’ll act as a central contact for oper...Read More>>.

Noriker Power Ltd is seeking a skilled IT Systems Administrator to maintain and improve the organisation's OT and Enterprise IT infrastructure. You will support Linux servers, Google Workspace, and cloud services while ensuring security and perfor...Read More>>.

CGI is seeking a System Administrator for the BOREALIS team to manage secure cloud infrastructure on-site in Reading. You will monitor health, respond to alerts, and support mission-critical systems in a highly secure environment.The role r...Read More>>.

We have a fantastic opportunity for an experienced HR professional looking to take on an exciting new role within a well-respected organisation based in Birmingham. The ideal candidate will be passionate, motivated and have previous experie...Read More>>.

We have a fantastic opportunity for an experienced HR professional looking to take on an exciting new role within a well-respected organisation based in Birmingham.The ideal candidate will be passionate, motivated and have previous experien...Read More>>.