Hadrian 🇳🇱 Hiring · 9 open roles ↗
Agentic AI offensive security platform that maps external attack surfaces and automates pen-testing (London/Amsterdam)
About Hadrian
Hadrian offers an agentic AI platform for offensive security that continuously discovers and validates internet-facing assets, emulating attacker behavior to identify exploitable vulnerabilities. The technology automates asset inventory, enriches asset understanding, and streamlines exposure management, significantly reducing remediation time and enhancing visibility into critical risks.
Hadrian is a Netherlands-based company founded in 2021, now around 98 people.
Founded by Rogier Fischer (Co-Founder & CEO; repeat founder; previously 42bits, Angel Investor; London Business School), Olivier Beg (Co-founder & Chief Hacking Officer; previously Emesa Nederland BV | Emesa Holdings BV, Insite Security BV; Spinoza Lyceum), Maurice Clin (Co-Founder & Head of Business Development; previously Asiya Investments, BNP Paribas; London Business School), Tijl Van Vliet (Co-Founder & Software Engineer; repeat founder; previously 3VW AudioVisueel, Centric Logistic Solutions; Eindhoven University of Technology).
Company facts from Harmonic and public filings; team backgrounds from public profiles. Refreshed weekly.
Hiring now · 9 live roles, checked daily
Round · $40M · Oct 2026
- HV Capital — Formerly HV Holtzbrinck Ventures — one of Europe's largest early-stage and growth investors, managing around €3B across nine fund generations and backing companies from seed through growth with cheques from ~€500k to €50 · cheques £400k – £40M
- Picus Capital — Pics is an early-stage technology ventures with a focus on Real Estate, Finance & Insurance, Human Resources, Renewable Energy, Mobility, E-Commerce and Health. · cheques £250k – £750k