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 spaceBacked by international investorsProcessing large-scale AI traffic across enterprise environmentsTraining and fine-tuning proprietary models for performance & reliabilitySmall, highly technical team shipping fastThe 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 enforcementOwn features end-to-end - API design, database schema, deployment, monitoringBuild high-throughput data pipelines handling massive AI trafficImprove system performance, reliability, and observabilityWork across the stack when needed — solving problems over protecting boundariesCollaborate closely with product, research, and ML teamsThis 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 scaleCaching & event streaming architecturesHigh-throughput distributed systemsProduction observability & performance tuning(Deep technical stack shared during interviews)Your Superpower:Production experience building backend systems in RustStrong async programming and concurrency fundamentalsSolid system design skills - scaling, failure modes, trade-offsExperience with PostgreSQL performance tuning and schema designExperience shipping and operating services in productionStrong communication and ownership mindsetBonus Points If:Experience with ClickHouse, Redis, KafkaKubernetes and infrastructure-as-code (Terraform, Helm)Background in fintech, monitoring, or high-throughput systemsInterest in AI infrastructure / AI safetyWhy Join:Competitive compensation + equityHybrid setup in Europe + relocation supportComprehensive health coverageTop-tier hardware & toolsTeam off-sitesBudget for learning & AI tooling