Showing 12 of 738 vacancies
DS
Senior Cyber Vulnerability Researcher
DSTL • Wiltshire • 27 Oct 2026
£41431.00 - £47139.00 per annual

Apply before 11:55 pm on Sunday 1st November 2026 At Dstl, our vision is to have a modern way of working efficiently, accommodating and enabling our people to create, collaborate and deliver. To do...

Permanent Hybrid Featured
AP
Vulnerability Response Engineer
Apple Inc. • London • 27 Oct 2026
Competitive

Selection changes the language of the page/content Vulnerability Response Engineer London, England, United Kingdom Software and Services Apple is seeking an exceptional Information Security...

Permanent Hybrid
HA
Security Engineer (Software) - Banking & Finance
Hamilton Barnes Associates Limited • London • 27 Oct 2026
Competitive

Ready to take the next step in your career? Join a leading algorithmic trading firm using state-of-the-art machine learning to produce price forecasts across more than 53,000 financial instruments...

Permanent Hybrid
RE
Security Engineer (AI Red Team)
Refractal Ltd • London • 27 Oct 2026
Competitive

About Refractal Refractal is an AI security company building the infrastructure organisations need to defend against autonomous AI threats. 2026 has shown that generally capable intelligence is...

Permanent Hybrid
SE
Competitive

Senior Penetration Tester - CHECK Team Lead (DV clearance required) DV Taunton - Hybrid but Heavy on Site Full-time permanent The opportunity An opportunity for a Senior Penetration Tester with...

Permanent Hybrid SC Cleared Featured
RE
Security Engineer: Detection & Response for AI Threats
Refractal Ltd • London • 27 Oct 2026
Competitive

Refractal Ltd is seeking an experienced security product professional to join our team in London. You will bring hands-on detection and response expertise to shape our product, working alongside...

Permanent Hybrid
ME

Meta is seeking Security Engineers with Privacy and Data protection expertise to join our Applied Artificial Intelligence (AAI) organization. You will apply deep privacy engineering expertise to...

Permanent Hybrid
BA
Competitive

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ we unite world class researchers and engineers in an...

Permanent Hybrid
BA
Lead Penetration Tester - Kubernetes & DevSecOps
Barlowe LLP • London • 27 Oct 2026
Competitive

G-Research is seeking a hands-on Penetration Tester to lead tests and vulnerability assessments across internal systems and security controls. Your work will strengthen our security posture through...

Permanent Hybrid Featured
BA
Security Data Platform Engineer - Elastic SIEM & Cloud
Barlowe LLP • London • 27 Oct 2026
Competitive

G-Research in London seeks a Security Data and Platform Engineer to own the onboarding, tuning and evolution of security telemetry across cloud, hybrid and corporate environments. You will design...

Permanent Hybrid
GS
Security Analyst (T-ISAC)
GSMA LLC • London • 27 Oct 2026
Competitive

Department: Fraud and Security Team: T-ISAC Location: London with hybrid ways of working Position type: Permanent What the hiring manager says The GSMA is expanding the T-ISAC Team and looking for...

Permanent Remote
CA
Security Engineer
Carbon3ai Limited. • Not Specified • 27 Oct 2026
Competitive

Era4 develops, owns and operates AI infrastructure across the UK, powered by renewable energy. Converting legacy industrial and energy sites into modern data-centre facilities, Era4 is combining...

Permanent Hybrid