Vulnerability Engineer

  • Xact Placements Limited
  • 07/05/2026
Full time Information Technology Telecommunications Python Software Engineer

Job Description

Vulnerability Engineer High-Growth Cybersecurity Scale-Up Fully Remote (UK)
  • Remote - UK Based
  • £85,000 + benefits
  • Permanent - Full time

Want to spend your days hunting the vulnerabilities that actually matter - the RCEs, the auth bypasses, the bugs attackers will weaponise tomorrow?

Join a research-driven, venture-backed cybersecurity scale-up trusted by Fortune 500 enterprises and critical infrastructure providers. Recognised by Gartner, $29M funded, and scaling fast worldwide.

As a Vulnerability Engineer, you'll sit at the intersection of vulnerability research and software engineering - finding bugs, building tools, and pushing the limits of LLM-powered offensive security workflows.

What you'll be doing:
  • Hands on research across 0-days and n-days, with patch diffing on source available and binary only targets
  • Building internal tooling for automated vulnerability discovery, exploit validation, and detection
  • Implementing production grade, LLM powered research workflows
  • Hunting the vulnerabilities that have real material impact - RCEs, auth bypasses, deserialisation bugs
What they're looking for:
  • 2+ years of hands on vulnerability research experience
  • Familiarity with n day reproduction and patch diffing
  • Exposure to both web and binary vulnerability classes
  • Software engineering experience, ideally in Python
  • Comfort with Burp Suite, Ghidra/IDA, debuggers, fuzzers
  • Genuine interest in using LLMs to accelerate security workflows