1,878 security system jobs in United Kingdom.

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Randstad

system administrator.

8 days ago

Hybrid
On-site
Full-time
Contract

Operations

Senior Administrator - COO Group Location: London (Hybrid: 3 days in-office - Tue, Wed, Thu) Contract: 3-Month Initial Contract (High probability of extension or perm conversion) Start Date: Immediate / 2-4 weeks We are seeking a high-calibre Senior Administrator to join an executive operations team in Canary Wharf.

London, United Kingdom

Dream Medical Limited

PERM SYSTEMS ADMIN PRIMARY CARE READING c£23 000 BENS in Reading

8 days ago

Full-time
Contract

£23k per annum

**Full time Systems Admin urgently required for the Reading area** Dream Medical is working in the Reading area with a site who urgently require full time Systems Admin An exciting opportunity has arisen for a Systems Admin to join a dynamic team. This position is a short term support of training and project administration ...

Reading, United Kingdom

Hackajob Ltd

Systems Administrator

8 days ago

Full-time

Our client is a management and technology consultancy. About the Role As a Systems Administrator, you will be part of our IT Team, supporting and developing our technology environment. This role offers a balance of hands-on responsibility and ongoing learning, making it suitable for graduates as well as candidates who have ...

Guildford, United Kingdom

shieldai

Senior Systems Administrator (R5064)

8 days ago

Full-time

... technology actively supports operations worldwide. For more information, visit . Follow Shield AI on LinkedIn , X , Instagram , and YouTube . Job Description: The Systems Administrator is responsible for supporting, securing, and optimizing enterprise IT operations. This includes end-user system support, infrastructure maintenance, ...

London, United Kingdom

Quant Capital

Graduate Systems Administrator - Hedge Fund

8 days ago

Graduate Systems Administrator – Hedge Fund NO FINANCE EXPERIENCE NEEDED – Quant Capital is urgently looking for a Graduate Systems Administrator to join our high-profile client in their main development team. Our client is one of the most famous global quantitative hedge funds. The environment is that of Facebook or Google, ...

London, United Kingdom

Pontoon

System Admin

8 days ago

Full-time
Contract

Company: PONTOON Job Type: Contract, Full Time [{"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}]

Chester, United Kingdom

LinuxRecruit

Systems Administrator (End User Support)

8 days ago

On-site

Your skills are required to come into a quant trading startup, who are leaving their competitors in the dust. Your experience as a multifaceted Linux Systems Administrator (End User Support) will be employed to fix everything! You'll be joining the Systems Operations team, who are effectively responsible for end user support, ...

London, United Kingdom

Bromley Council

Senior Systems Administrator (BR10)

8 days ago

Full-time

£19.59 per hour

... Excellent analytical and problem solving skills 5. Excellent project management skills 6. Ability to produce clear and concise documentation for the operation of systems and applications and to keep systematic records 7. Ability to establish and promote the best use of available technologies on the system 8. Ability to challenge, ...

Bromley, United Kingdom

Akkodis

Senior IT Systems Administrator

8 days ago

On-site
Full-time

£33k - £38k per annum

... Extensive knowledge of Windows Server environments, Active Directory, DNS and DHCP. - Experience supporting Microsoft RDS/AVD and Exchange environments. - Proven systems administration experience. - Excellent troubleshooting, communication and problem-solving skills. - Ability to work effectively under pressure. Responsibilities: ...

Middlesbrough, United Kingdom

Symmetric Recruitment Ltd

Systems Administrator

8 days ago

Full-time

£40k - £45k per annum

Company: SYMMETRIC RECRUITMENT LTD Job Type: Permanent, Full Time Salary: £40000 - £45000/annum + benefits [{"name": "permanent_employment", "text": "Permanent", "categoryName": "Type of employment"}, {"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}]

Lincoln, United Kingdom

Graphcore

PLM System Administrator

8 days ago

On-site

About the job Make the systems behind Graphcore’s product information work better, stay controlled, and remain trusted. You’ll administer and improve our PLM (Product Lifecycle Management) system, with responsibility for document management and the standards portal. Your work will keep product information accurate, traceable, ...

Bristol, United Kingdom

Yoojo

Need help cleaning and optimizing my computer system

8 days ago

Contract

I'm looking for someone to thoroughly clean and optimize my desktop computer. It runs slowly, has cluttered files, and a lot of temporary data buildup. I’d like a professional to perform a deep OS cleanup, remove unnecessary startup programs, organize files, and run a malware scan if needed.

Birmingham, United Kingdom

Nexus Jobs Limited

3rd Level Treasury Systems Support with FIS Integrity Treasury Application (IT)

8 days ago

Hybrid
On-site
Full-time

£80k - £100k per annum

3 Level Treasury Systems Support with FIS Integrity Treasury Application Our Client is looking to recruit a Level 3 Treasury Systems Specialist will be responsible for the configuration, integrity, and controlled evolution of the Treasury Management System and its integrations, ensuring that all system changes are delivered ...

London, United Kingdom

Graphcore

Senior Machine Learning Engineer (Large Systems)

8 days ago

On-site
Contract

AI / ML

... Graphcore, you will contribute to advancing AI technology by developing and optimising AI models tailored to our specialised hardware. You will work on large scale systems where performance is critical to the success of our projects. Working closely with the Software development and Research teams, you will play a critical role ...

London, United Kingdom

Software Engineering, Other Engineering, Data Science· Full-...

Machine Learning Systems & Infrastructure Engineer

8 days ago

... logging, and alerting for job performance, data-pipeline health, and cost (e.g., Prometheus/Grafana, OpenTelemetry); define SLOs and incident response for the systems you own. - Security and access: Manage secrets, IAM, and network boundaries (e.g., Tailscale, cloud VPC) for the systems you own. - Collaboration: Partner with ...

United Kingdom

titanwh

HR Systems and Automation Lead - 12 Month FTC

8 days ago

Full-time
Contract

... initiative and contribution is encouraged, so that together we can deliver better outcomes for our clients over the long term. We are looking for a permanent HR systems and Automation Lead to own our HR technology stack end to end, driving both operational excellence and adoption. This role combines system administration and ...

London, United Kingdom

Ad Warrior Ltd

HR Systems Lead

8 days ago

On-site
Part-time
Contract

£35.61k - £38.78k per annum

... Type: Fixed Term, Part-time (18.5 hours per week) Closing Date: 20 th of October 2026 Birmingham Newman University is seeking an experienced and motivated HR Systems Lead (iTrent) to play a key role in the next phase of our HR systems transformation programme. This is an exciting opportunity for a HR systems specialist with ...

Birmingham, United Kingdom

Confero

IT Systems Administrator

8 days ago

On-site

We have a fantastic opportunity for a talented Systems Administrator / Systems Support Engineer to join our team. This position will involve maintaining the systems and infrastructure to support our contact centre business and various client projects across a whole spectrum of interesting and varied requirements. The primary ...

London, United Kingdom

System Administrator - Consultancy

8 days ago

Remote
Hybrid
On-site
Full-time
Contract

£65k per annum

... to ensure efficient use of space, power, and rack resources. - Gather server requirements and verify space, power, and rack availability. - Install operating systems on newly mounted servers. - Reinstall OS and resolve system abnormalities as required. - Server Maintenance & Troubleshooting. - Perform daily server maintenance, ...

London, United Kingdom

CommonAI C.I.C.

Senior AI Systems Administrator

8 days ago

On-site
Full-time

... collaborative engineering drives faster AI innovation and are backed by a mix of UK Government and private funding in order to design, build and deploy innovative AI systems. The Opportunity We are seeking a highly skilled Senior AI Systems Administrator to join our rapidly growing engineering team. You will provision and maintain ...

Cambridge, United Kingdom