Product Engineer (Backend)

Role Overview

We're looking for a Product Engineer (Backend – Rust) to own and evolve the core systems that power AI safety at scale. You will design and build backend services in Rust that handle real-time policy checks at scale – low latency, high reliability.

What You Will Do

Design and build backend services in Rust, own features end-to-end, work across the stack when needed, improve system performance and reliability, and collaborate with product, research, and ML teams.

Why It Might Be a Fit

You'll fit right in if you've built and shipped backend systems in Rust, are comfortable with async Rust, web frameworks, and database access patterns, and have strong fundamentals in system design.

Requirements

• Built and shipped backend systems in Rust
• Comfortable with async Rust, web frameworks, and database access patterns
• Strong fundamentals in system design
• Experience with PostgreSQL and efficient queries, schema design, and performance debugging
• Fluent English

Benefits

• Salary of $80,000 to $150,000
• Equity
• Paid time off in line with local regulations
• Relocation package
• Best medical insurance in France
• All hardware, tools, and services needed
• Covered subscriptions for AI agents and IDEs
• Team off-sites twice a year