AI Systems Engineer (Offensive Cyber)

Confidential • madrid, comunidad de madrid, Spain • Posted June 02, 2026

Location madrid, comunidad de madrid
Job Type Full-time
Category Informática y tecnología
Posted June 02, 2026

AI / Systems Engineer (Offensive Cyber) Washington, D.C. (5 days a week in office) | Full relocation support

About The Role

A well‑funded early‑stage startup is building the systems behind AI‑driven vulnerability research and exploit development. The team is small, technical, and moving fast. They are backed by tier‑1 US investors and include alumni of frontier AI labs, elite US intelligence agencies, top Israeli intelligence units, and a defense tech unicorn.

This is not a prompt engineering role. The work is close to the metal. You will own problems end to end, optimize for real hardware, and ship production systems where performance and correctness are not negotiable.

The Team Is Hiring Two Adjacent Profiles

  • Vulnerability researchers with deep low‑level systems chops and a CTF or exploitation background.
  • Systems engineers with strong low‑level builder instincts, whether or not they have done formal vulnerabili...

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