2 of 2 Remote/Hybrid Offensive Security Jobs in the City of London

Senior Security Researcher Salary: £90,000 - £100,000 + attractive benefits Location: UK (Remote-first/occasional London meetings) Employment: Full Time, Permanent This is an opportunity to join a high-growth, PE-backed cybersecurity software company whose technology protects organisations against sophisticated file-based and zero-day threats. … Following significant investment and continued growth, the business is expanding its technical capability and strengthening its dedicated security research function. This senior appointment will take ownership of complex, open-ended investigations and turn original research into practical defensive capability. You will explore unfamiliar technologies, analyse malicious material, build proof ...

Working with a global financial services organisation who are looking for a highly specialised Frontier AI Security contractor to help deliver a high-profile project. Details Location - London Hybrid - 3 days/week in office Duration - Initially 6 months Rate - £900-£1000/day Inside IR35 via Umbrella Skills … Experience Required Very senior, hands-on technical specialist Deep security engineering; hands-on frontier LLM work (evals, agentic loops, failure modes); shipped production systems; product instinct; senior leadership. Core Competencies: Strong AI, cybersecurity , and software engineering experience. Experience with LLM s and frontier AI models rather than traditional machine ...