Senior Rust Engineer — Production Backend Systems | Remote (LATAM)

Headquarters: Remote URL: https://www.toptal.com/ About the Role We're looking for Senior Rust Engineers to take real ownership of a high-performance, production backend. You'll be working on mission-critical systems where performance, security, and reliability aren't nice-to-haves — they're the job. Whether the work is hardening core services for a cybersecurity product or extending a Rust-based backend that powers a cross-platform application, this role is for someone who can navigate complex, unfamiliar codebases quickly and start shipping production-ready code fast. What You'll Do • Build, optimize, and maintain high-performance backend services in Rust • Take ownership of core backend architecture, including remediating vulnerabilities and improving CI/CD workflows • Interface with PostgreSQL for complex data management, persistence, and schema-oriented design • Design and work with schema-oriented service patterns (e.g., gRPC) where applicable • Deploy and maintain services on AWS • Jump into an existing, unfamiliar codebase and reach full productivity within the first 1–2 weeks • Submit clean, high-quality code that h