As our first Principal Engineer, you will own the technical direction of our platform as we scale.

What will you do

• Own architecture decisions and long-term system design
• Solve our hardest technical problems
• Set engineering standards and drive technical quality across the codebase
• Lead design reviews and be the tie-breaker on complex technical trade-offs
• Mentor senior engineers and raise the technical bar of the team
• Partner with the VP Engineering on balancing technical excellence with delivery speed

Who you are

• 8+ years of software engineering experience with deep expertise in system design
• Track record of owning architecture for products at scale
• Experience working in fast-moving startups (Series A/B preferred)
• Strong opinions on code quality, testing, and technical standards
• Ability to influence without authority and drive alignment across teams

Bonus points for:

• Experience with LLM-based products or AI systems
• Cybersecurity or security tooling background
• Python and distributed systems expertise

Why join us

• Shape the technical foundation of a category-defining AI security product
• High ownership and direct impact from day one
• Competitive salary + meaningful equity
• Hybrid setup in Paris with flexibility

If you’re excited about helping security teams adopt cutting-edge AI, we’d love to hear from you. Let’s build the future of cybersecurity together!

Hiring process

1. Intro Call
2. Manager Interview
3. Case Study
4. Culture fit