Title: Backend Engineer | Rust
Team: AI Safety Infrastructure
Location: EU | Remote
Employment type: FullTime
We’re hiring a Backend Engineer (Rust) for a fast-growing AI infrastructure startup building the safety and control layer for large-scale AI systems.
THE COMPANY BEHIND THE ROLE:
- AI-native product company operating in the AI safety & infrastructure space
- Backed by international investors
- Processing large-scale AI traffic across enterprise environments
- Training and fine-tuning proprietary models for performance & reliability
- Small, highly technical team shipping fast
The company builds the control and evaluation layer for AI systems - helping organizations define, test, and enforce how AI behaves in real-world environments.
YOUR IMPACT:
- Design and build Rust backend services powering real-time policy enforcement
- Own features end-to-end - API design, database schema, deployment, monitoring
- Build high-throughput data pipelines handling massive AI traffic
- Improve system performance, reliability, and observability
- Work across the stack when needed — solving problems over protecting boundaries
- Collaborate closely with product, research, and ML teams
- This is a hands-on role where infrastructure directly shapes how AI behaves in production.
TECH ENVIRONMENT (HIGH-LEVEL):
- Async Rust (Tokio)
- Modern web frameworks (Axum / Actix)
- PostgreSQL at scale
- Caching & event streaming architectures
- High-throughput distributed systems
- Production observability & performance tuning
YOUR SUPERPOWER:
- Production experience building backend systems in Rust
- Strong async programming and concurrency fundamentals
- Solid system design skills - scaling, failure modes, trade-offs
- Experience with PostgreSQL performance tuning and schema design
- Experience shipping and operating services in production
- Strong communication and ownership mindset
BONUS POINTS IF:
- Experience with ClickHouse, Redis, Kafka
- Kubernetes and infrastructure-as-code (Terraform, Helm)
- Background in fintech, monitoring, or high-throughput systems
- Interest in AI infrastructure / AI safety
WHY JOIN:
- Competitive compensation + equity
- Hybrid setup in Europe + relocation support
- Comprehensive health coverage
- Top-tier hardware & tools
- Team off-sites
- Budget for learning & AI tooling
