Windows Systems Administrator

Company IconQuant Capital
Location IconLondon

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>>.

Posted: September 30th, 2026
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Systems Administrator (Associate)

Company IconVisa
Location IconBasingstoke

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>>.

Posted: September 30th, 2026
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Linux Systems Administrator

Company IconLinuxRecruit
Location IconLondon

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>>.

Posted: October 1st, 2026
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Systems Administrator II

Company IconAstreya
Location IconLondon

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>>.

Posted: October 1st, 2026
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IFS System Administrator

Company IconHenry Schein
Location Icon

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>>.

Posted: October 1st, 2026
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Systems Administrator

Company IconAshdown Group
Location IconLondon

Overview As a Systems Administrator, you will own the day-to-day IT function for the UK and Europe, acting as a trusted expert for IT requests in a hands-on capacity. You’ll manage IT systems, devices, security, SaaS, and office technolog...Read More>>.

Posted: October 1st, 2026
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Linux Systems Administrator

Company IconQuant Capital
Location IconLondon

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>>.

Posted: October 1st, 2026
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Junior Systems Administrator

Company IconQuant Capital
Location IconLondon

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>>.

Posted: October 1st, 2026
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Information Systems Manager

Company IconSue Ross Recruitment Ltd
Location IconSheffield

Sue Ross Recruitment are working on behalf of our client, a highly respectedengineering company,to recruit an Information Systems Manager on a permanent basis.This leadership role is responsible for the overall management, security, reli...Read More>>.

Posted: September 4th, 2026
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SHE Systems Manager

Company IconMiller Homes
Location IconCity of Edinburgh

SHE Systems Manager Department: Health & Safety (SHE) Employment Type: Full Time Location: Group - Scotland East Description SHE Systems Manager Edinburgh, EH12 9DH Competit...Read More>>.

Posted: October 1st, 2026
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Lead Linux System Administrator

Company IconMorgan Stanley
Location IconLondon

We’re seeking someone to join our team as an experienced Linux System Administrator to help maintain, modernize, and improve the infrastructure supporting Morgan Stanley's distributed systems. This role will work across a complex environment...Read More>>.

Posted: October 2nd, 2026
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Salesforce Systems Manager

Company IconErnest Gordon Recruitment Limited
Location IconLutterworth

Salary: £45,000 - 50,000 per year Requirements: Salesforce knowledge Ability to commute to Lutterworth 2x per week Ability to train staff members on the benefits of Salesforce systems Sal...Read More>>.

Posted: October 2nd, 2026
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Salesforce Systems Manager

Company IconErnest Gordon Recruitment
Location IconLutterworth

Salary: £50,000 - 50,000 per yearRequirements:Salesforce knowledgeAbility to commute to Lutterworth 2x per weekBased in or around LutterworthAbility to train staff members on the benefits...Read More>>.

Posted: October 2nd, 2026
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HPC Systems Administrator: Linux, Slurm & Networking Pro

Company IconLenovo
Location IconLondon

We are Lenovo! We are hiring an HPC System Administrator in London to support mixed on-site and remote customer environments.You will manage data-center infrastructure, perform firmware upgrades and software patches, and troubleshoot comple...Read More>>.

Posted: September 22nd, 2026
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Global Financial Systems Administrator

Company IconCIBT
Location IconLondon

Building 2, Moretown, Floor 54 Thomas More StreetLondon, LON E1W1YW, GBR We are seeking a proactive and detail-orientedGlobal Financial Systems Administratorto oversee the administration, optimization, and support of our e...Read More>>.

Posted: September 22nd, 2026
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Senior Financial Systems Manager

Company IconKing & Spalding LLP
Location IconLondon

King & Spalding is a leading global law firm with a commitment to excellence, innovation, and the seamless delivery of legal services. We harness innovative technology and exceptional talent to meet the complex needs of our clients in a fast-pa...Read More>>.

Posted: September 22nd, 2026
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Systems Administrator Solace - Finance

Company IconClient Server
Location IconLondon

Systems Administrator / Engineer (Solace Messaging Linux Networking) London / WFH to £100kDo you have Solace message system administration skills?You could be progressing your career at a global brokerage and...Read More>>.

Posted: September 22nd, 2026
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Senior Financial Systems Manager

Company IconUnited Kingdom
Location IconLondon

King & Spalding is a leading global law firm with a commitment to excellence, innovation, and the seamless delivery of legal services. We harness innovative technology and exceptional talent to meet the complex needs of our clients in a fast-pa...Read More>>.

Posted: September 22nd, 2026
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System Administrator II — Security & Access Control

Company IconM.C. Dean, Inc.
Location IconLondon

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>>.

Posted: September 22nd, 2026
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Senior Systems Administrator – Cloud, Identity & Endpoints

Company IconAbtrace Ltd.
Location IconLondon

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>>.

Posted: September 22nd, 2026
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TA Systems Administrator — Ashby ATS & Data Automation

Company IconUnited States Digital Space LLC
Location IconLondon

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>>.

Posted: September 22nd, 2026
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IT Systems Administrator — Flexible, 24x7 Support

Company IconSideglobal
Location IconLondon

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>>.

Posted: September 22nd, 2026
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Senior Systems Administrator – AWS & Identity (Hybrid)

Company IconAbtrace
Location IconLondon

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>>.

Posted: September 22nd, 2026
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Senior Linux System Administrator – DV Security Cleared

Company IconSalt Digital Recruitment
Location IconLondon

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>>.

Posted: September 22nd, 2026
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DV-Cleared Senior Linux Systems Administrator

Company IconSalt Digital Recruitment
Location IconLondon

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>>.

Posted: September 24th, 2026
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Property Systems Administrator & Process Optimisation Lead

Company IconCareer Moves Group I B Corp™
Location IconLondon

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>>.

Posted: September 25th, 2026
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Senior Enterprise Systems Administrator

Company IconLever, Inc.
Location IconLondon

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, id...Read More>>.

Posted: September 26th, 2026
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Staff Systems Administrator (R5995)

Company IconLever, Inc.
Location IconLondon

Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BATaircraft, and Aechelon simulation and synt...Read More>>.

Posted: September 26th, 2026
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Security Systems Administrator I — TOC Operator & Analyst

Company IconM.C. Dean, Inc.
Location IconLondon

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>>.

Posted: September 26th, 2026
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Staff Systems Administrator (R5995)

Company IconTelemetry Today LLC
Location IconLondon

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 individ...Read More>>.

Posted: September 27th, 2026
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Senior Systems Administrator - Enterprise IT & Security

Company IconTelemetry Today LLC
Location IconLondon

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>>.

Posted: September 27th, 2026
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PLM Systems Administrator

Company IconSmartRecruiters, Inc.
Location IconWoking

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>>.

Posted: September 27th, 2026
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Technical Security Systems Manager

Company IconSky
Location IconLondon

We don’t just believe in better. We make it happen.Better content. Better products. And better careers. Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile,...Read More>>.

Posted: September 28th, 2026
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Senior Enterprise Systems Administrator & Security Owner

Company IconShieldai
Location IconLondon

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>>.

Posted: September 28th, 2026
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Staff Systems Administrator (R5995)

Company IconShieldai
Location IconLondon

Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BATaircraft, and Aechelon simulation and synt...Read More>>.

Posted: September 28th, 2026
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Senior Systems Administrator - Enterprise Infra & Security

Company IconShield
Location IconLondon

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>>.

Posted: October 1st, 2026
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Staff Systems Administrator (R5995)

Company IconShield
Location IconLondon

Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthe...Read More>>.

Posted: October 1st, 2026
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Senior Systems Administrator - Healthcare Cloud & Security

Company IconAbtrace Limited
Location IconLondon

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>>.

Posted: October 1st, 2026
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Business Central Systems Administrator

Company IconVIQU IT
Location IconKempsey

Business Central Systems Administrator Worcester | Onsite, Monday-Friday, 8am-5pm £40,000-£45,000 per annum, depending on experience | Quarterly bonus scheme VIQU has partnered with a growing manufacturer serving the const...Read More>>.

Posted: October 2nd, 2026
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Business Central Systems Administrator

Company IconVIQU Ltd
Location IconWorcester

Business Central Systems Administrator Worcester | Onsite, Monday-Friday, 8am-5pm £40,000-£45,000 per annum, depending on experience | Quarterly bonus scheme VIQU has partnered with a growing manufacturer serving the constru...Read More>>.

Posted: October 2nd, 2026
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Finance Systems Administrator

Company IconCo-op Academies Trust
Location IconManchester

Are you a proactive, tech-savvy administrator looking to make a meaningful impact within a values-driven education trust?At Co-op Academies Trust, we believe that smooth, efficient finance systems are essential to supporting our schools and...Read More>>.

Posted: October 2nd, 2026
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Waste Systems Administrator - Compliance & Reporting

Company IconPertemps Coventry Commercial
Location IconGaydon

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>>.

Posted: October 2nd, 2026
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System Administrator – Linux & Cloud Infrastructure

Company IconFree-Work
Location IconReading

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>>.

Posted: October 3rd, 2026
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OT & IT Systems Administrator: Linux, Cloud & Security

Company IconNoriker Power Ltd
Location IconCheltenham

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>>.

Posted: October 3rd, 2026
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Linux & Cloud Systems Administrator – Secure Infra (Onsite Reading)

Company IconFree-Work
Location IconReading

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>>.

Posted: October 3rd, 2026
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Internal Applicaitons Only* Quality Systems Manager

Company IconYeo Valley Production Ltd
Location IconSouth Somerset

So, what will I be doing? In this role you'll be key in supporting the business in projects and implementation. You'll openly share your technical knowledge and insight to help shape processes and procedures. You'll also be maintaini...Read More>>.

Posted: October 3rd, 2026
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School Data & Systems Manager – Arbor Transition

Company IconCornelius Vermuyden School
Location Icon

Cornelius Vermuyden School is seeking an organised Data Manager on a fixed-term basis to 31 August 2027 to ensure accurate MIS data, secure handling and support the day-to-day running of the school and its strategic priorities.You will lead...Read More>>.

Posted: October 3rd, 2026
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IT Systems Administrator — Cloud, Security & Projects

Company IconISH
Location IconCity of Westminster

International Students House (ISH) in London seeks an experienced Systems Administrator to join the IT team. The role involves hands‑on support across IT, Microsoft 365, networking, security and cloud services, working with the IT Manager to kee...Read More>>.

Posted: October 3rd, 2026
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Field View Coordinator / Project Systems Administrator

Company IconBMSL Group Ltd
Location IconCardiff

Field View Coordinator / Project Systems AdministratorCardiff or NeathFull-Time or Part-TimePermanent or Freelance Considered30,000 - 32,000 p.a. (Permanent) A well-established South Wales construction contra...Read More>>.

Posted: October 3rd, 2026
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HR Systems & Recruitment Administrator - Part Time

Company IconKatie Bard & Angela Mortimer Plc
Location IconBirmingham

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>>.

Posted: October 4th, 2026
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