Senior IT Systems Administrator (Linux & HPC)

Company IconKBR
Location IconLeatherhead

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>>.

Posted: October 1st, 2026
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Lead IT Network Administrator, Network, Voice, AV

Company IconKBR
Location IconLeatherhead

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>>.

Posted: October 1st, 2026
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Systems Administration Team Lead – Quant Trading

Company IconQuant Capital
Location IconLondon

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>>.

Posted: October 1st, 2026
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Linux System Administrator

Company IconSoarswell Consulting
Location IconLondon

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>>.

Posted: June 6th, 2026
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Hybrid Mac Systems Administrator – IT & Security

Company IconKroo Bank
Location IconLondon

A digital banking firm in London is seeking a Systems Administrator to support IT infrastructure and ensure reliability for 300 end users. Responsibilities include the management of core services, MDM solutions, and collaboration with security teams....Read More>>.

Posted: June 6th, 2026
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System Administrator (HPC): £140,000 +Bonus

Company IconHunter Bond
Location IconLondon

Get AI-powered advice on this job and more exclusive features.Direct message the job poster from Hunter BondSenior Headhunter at Hunter Bond| London | New York | Singapore | Montreal |Specialising in Infrastructure Engineering...Read More>>.

Posted: June 6th, 2026
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Lead IT Systems Administrator

Company IconHarnham
Location IconLondon

Hybrid - 2-3 days a week in office (London, Liverpool Street)Join a high-growth UK banking business supporting 200+ fintech partners through Banking-as-a-Service infrastructure. This is a key role in building a modern, automated I...Read More>>.

Posted: June 6th, 2026
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System Administrator - Linux & Kubernetes

Company IconAreti Group | B Corp™
Location Icon

OverviewBristol HQ (Hybrid Working – 2 days on-site, 3 days remote).We’re seeking a talented System Administrator with strong skills in Kubernetes, Helm, and Linux to join a growing technology team. T...Read More>>.

Posted: June 6th, 2026
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Senior IT Systems Administrator (OSS)

Company IconIndra
Location Icon

Monitoring Senior IT Systems Administrator (OSS) - 20 month FTC Indra is one of the leading global technology and consulting companies and the technological partner for core business operations of its customers worldwide. It is a world...Read More>>.

Posted: June 6th, 2026
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P6 Planning Systems Administrator — Data & Reporting

Company IconBAM UK & Ireland
Location IconKilsyth

BAM UK & Ireland is recruiting a Planning Administrator to manage Primavera P6 data, governance and reporting. You will maintain the planning databases, support version control and produce dashboards for project teams in a collaborative environmen...Read More>>.

Posted: July 10th, 2026
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Senior IT Systems Administrator – Cloud, Networking & AV Support

Company Iconloveholidays
Location IconLondon

loveholidays is seeking a Senior System Administrator to ensure the smooth operation of IT systems across the UK and Europe. You will report to the Senior Business IT Manager and support staff in our London HQ, Dusseldorf, and remote sites....Read More>>.

Posted: July 31st, 2026
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Senior IT Systems Administrator

Company Iconloveholidays
Location IconLondon

Why Technology at loveholidays?At loveholidays - we trailblaze together. We’re on a mission to open the world to everyone, giving our customers’ unlimited choice, unmatched ease and unmissable value for their next getaw...Read More>>.

Posted: July 31st, 2026
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Linux Engineer / Linux Systems Administrator

Company IconLangland Consultants
Location IconSutton Coldfield

Job Description Linux System Administrator, Linux Engineer MySQL Administrator, DevOps Engineer, Redhat, competitive salary + benefits. About the Company: My client who provide software services and managed...Read More>>.

Posted: August 5th, 2026
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Senior IT Systems Administrator - Ship & Office Infra

Company IconLomar Shipping Limited
Location IconLondon

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...Read More>>.

Posted: August 10th, 2026
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Building Control Lead & Data Systems Administrator

Company IconAllscreens Nationwide Ltd
Location IconNewport

Isle of Wight Council is seeking a Senior Administrator for the Building Control tech support team in Newport. This full-time, Grade 8 role reports to the Building Control Manager and leads a team of technical support officers to ensure efficient,...Read More>>.

Posted: August 17th, 2026
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Learning Management System Administrator

Company IconRaytheon UK
Location IconGlenrothes

Date Posted: 2026-08-05Country: United KingdomLocation: Winnersh, WokinghamPosition Role Type: HybridLearning Management System AdministratorLocation: WinnershPer...Read More>>.

Posted: August 22nd, 2026
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Monitoring Consultant (OSS)/Senior IT Systems Administrator

Company IconIndra Group UK & Ireland
Location IconRedhill

Monitoring Consultant (OSS)/Senior IT Systems Administrator(FTC) About Indra Group UK & Ireland Indra is a leading global technology and consulting company, and a trusted technological partner for the core business operations...Read More>>.

Posted: August 30th, 2026
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Learning Systems Administrator

Company IconRandox
Location IconAntrim

Learning Systems Administrator – (Job Ref: 26N/LYSA) Randox Laboratories continues to develop disruptive innovations in Diagnostics and Healthcare globally. We are proud to have been named the Number 1 company in Northern Ireland for...Read More>>.

Posted: September 17th, 2026
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System Administrator - Microsoft

Company IconGCS Recruitment
Location IconLondon

Contract - Microsoft 365 Subject Matter Expert Location: London - OnsiteType: Contract - 6 month durationSalary / Day Rate: Competitive The Opportunity We're partnering with a highly respe...Read More>>.

Posted: September 17th, 2026
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IT Systems Administrator

Company IconSoCode Limited
Location IconCambridge

Systems Administrator4 Days On-Site / HybirdCambridgeThe OpportunityAs Systems Administrator, you will be responsible for the management, maintenance and support of a hybrid IT environment spanning on-premise and c...Read More>>.

Posted: September 17th, 2026
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Senior IT Systems Administrator

Company IconAkkodis
Location Icon

Senior IT Systems Administrator£33,000 - £38,000MiddlesbroughOur client is a leading provider, and a massive name in the industrial sector. They are looking for an experienced 3rd line systems administrator to come in a...Read More>>.

Posted: September 20th, 2026
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Linux System Administrator

Company IconN Consulting Global
Location IconLondon

Technical Support Specialist (with device focus)Technical Support Specialist (with device focus)1 week ago Be among the first 25 applicantsDirect message the job poster from N Consulting GlobalLab Admin –...Read More>>.

Posted: September 20th, 2026
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IT Systems Administrator

Company IconFlogas Ireland
Location IconNorthern Ireland

Flogas Ireland have an exciting opportunity for an IT System Administrator to join our IT Team on a Permanent contract. The Flogas IT department encompasses a wide range of platforms and technologies which ensure the successful applicant will h...Read More>>.

Posted: September 22nd, 2026
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IT Systems Administrator (UK)

Company IconDYWIDAG
Location Icon

Reporting the Head of IT Operations (UK) and Southam based, the IT System Administrator will be required to provide desktop support primarily for UK based users, and factory systems; including hardware, software and infrastructure ensuring that...Read More>>.

Posted: September 24th, 2026
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IT Systems Administrator

Company IconSanderson Recruitment Plc
Location Icon

IT Systems AdministratorSalary: £33,000 - £38,000Contract Type: PermanentLocation: Hybrid working (office based in Oswestry) - typically 2 days in the office per weekSupport Technology T...Read More>>.

Posted: September 24th, 2026
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IT Systems Administrator: SLA-Driven Desk & Network Support

Company IconDYWIDAG
Location Icon

DYWIDAG is seeking an IT System Administrator based in the UK (Southam area) to provide desktop and systems support for UK users and factory systems. You will work with IT Managers to develop and maintain structured SLA agreements and drive adopti...Read More>>.

Posted: September 25th, 2026
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Salesforce & Systems Administrator - NPSP Expert

Company IconHTB Group Recruitment
Location IconLondon

Alpha International seeks a Salesforce Platform Administrator to own and optimise the core Salesforce instance and associated systems (Campaign Monitor, FormAssembly, Conga). You’ll work with stakeholders to translate needs into practical, scala...Read More>>.

Posted: September 27th, 2026
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Windows Systems Administrator - L3

Company IconGlobal Relay
Location IconLondon

Who we are: For over 25 years, Global Relay has set the standard in enterprise information archiving with industry-leading cloud archiving, surveillance, eDiscovery, and analytics solutions. We securely capture and preserve the communi...Read More>>.

Posted: September 27th, 2026
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Linux Systems Administrator / DevOps Engineer

Company IconN P Associates
Location IconLondon

Linux Systems Administrator / DevOps Engineer The Environment The company are a market-leading European financial technology company and transaction venue provider at the cutting edge of modern market infrastructure. Driven by...Read More>>.

Posted: September 27th, 2026
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HR Systems & Recruitment Administrator - Part Time

Company IconConfidential
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 experie...Read More>>.

Posted: October 3rd, 2026
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