Security Researcher

Confidential • london, england, United-Kingdom • Posted June 18, 2026

Location london, england
Job Type Full-time
Category Engineering
Posted June 18, 2026

Security Researcher | Washington, D.C. (in office, 5 days/week) | Full relocation support

A small, well-funded startup is building something new: systems that use AI to find vulnerabilities and develop exploits at scale. The team moves fast and works close to the metal. It's made up of people who've done serious work before, including alumni of frontier AI labs, top US intelligence agencies, elite Israeli intelligence units, and a defense tech unicorn, backed by tier-1 US investors.

This is not a prompt engineering job. You'll work at the level of OS internals and kernel interfaces, dig into how real systems break, and ship production code where performance and correctness genuinely matter. You'll own problems from first idea to running system.

What you'll do

  • Build production systems that drive AI-powered vulnerability research and exploit development
  • Research how systems fail: find, analyze, and understand vulnerabilities at the ...

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