Backend Engineer | Rust
Job Description
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
(Deep technical stack shared during interviews)
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