Backend Engineer (SDE 3)

About the role

Bytebeam's API backend serves more than a million connected vehicles and hardware units. We are now building a separate, next-generation platform to power fleet management, device commands, configuration, and data queries at greater scale.

The high-level architecture is in place. You will turn it into a reliable production system, shaping the detailed design and making the engineering decisions that determine its p99 latency, query performance, and reliability.

What you'll do

• Build Bytebeam's greenfield, next-generation API backend in Rust.
• Design and implement APIs and data-serving paths backed by PostgreSQL, ClickHouse, and DuckDB.
• Measure and improve p99 latency, query performance, throughput, and reliability under production workloads.
• Own services in production, including deployments, observability, capacity planning, on-call, and incident response.
• Lead projects end to end and mentor junior engineers in teams of no more than three people.

What we're looking for

• 5+ years building and operating production backend systems.
• Strong production experience in Rust; 3-4 years is preferred. Experience with libraries such as axum, actix, sqlx, or SeaORM is useful.
• Strong systems fundamentals across concurrency, networking, storage, and failure handling.
• Deep understanding of database and query optimization. Production experience with PostgreSQL and ClickHouse is a big plus.
• A strong bias toward measuring systems before optimizing them, especially p99 latency, query performance, and throughput.
• Experience owning production reliability and mentoring engineers.

Why Bytebeam

• Build a greenfield platform informed by the real workloads of more than a million connected units.
• Own meaningful systems from detailed design through production operation.
• Work in small, high-ownership teams with a direct line between your decisions and customer impact.