Software Engineer, Backend Developer, Cloud Engineer - Software

We are looking for a high‑agency Software Engineer to help build the core systems behind Constellation

OS — the autonomous operating system for satellite networks. You will work directly with the founders to design, implement, and scale distributed systems that process real‑time telemetry, predict network failures, and autonomously reroute mission‑critical traffic. This is not a narrow feature role; you will operate across backend infrastructure, performance‑critical systems code, cloud architecture, and operator‑facing tooling. You will also engage directly with customers in forward‑deployed environments.

This role is based in Seattle, WA
.

• Distributed Systems Architecture: Design and implement fault‑tolerant backend systems capable of ingesting and processing high‑throughput real‑time telemetry streams.
• Performance‑Critical Engineering: Build and optimize low‑latency components in C++ and Rust. Own performance profiling, concurrency design, and system‑level optimization.
• Cloud & Infrastructure: Develop and operate cloud‑native infrastructure (AWS or equivalent), ensuring scalability, observability, and reliability.
• Full‑Stack Contribution: Contribute to operator‑facing frontend systems when needed to ensure seamless integration between backend intelligence and mission control interfaces.
• Forward‑Deployed Engineering: Work directly with customers in live operational environments. Integrate, debug, and iterate rapidly based on real mission feedback.
• Systems Optimization: Continuously improve throughput, reliability, and autonomous decision‑making performance across the Constellation
  
  OS platform.

• High Agency: You do not wait for tickets. You identify bottlenecks, propose architectures, and execute.
• Systems‑Minded: You deeply understand distributed systems, networking, operating systems, and concurrency.
• Low‑Level Fluent: You are comfortable writing and debugging performance‑sensitive systems in C++ and/or Rust.
• Cloud Native: You have experience deploying and operating distributed systems in modern cloud environments.
• Customer‑Ready: You are comfortable interfacing directly with technical customers and operating in forward‑deployed settings.
• Startup‑Calibrated: You thrive in high‑velocity environments where ambiguity is normal and impact is immediate.
• Bonus: Experience in AI systems, satellite networking, real‑time telemetry, or hard‑tech environments.

• Base salary: $120,000 – $180,000 USD
• Meaningful equity participation
• Competitive benefits

Compensation is commensurate with experience, technical depth, and demonstrated systems expertise.