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Astranis

Senior HITL Test Engineer

Astranis
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onsite senior full-time $150,000-$215,000 USD San Francisco, CA

First indexed 7 Jul 2026

Description

Astranis builds advanced satellites for high orbits, expanding humanity's reach into the solar system.

We are seeking a highly skilled and motivated HITL Test Engineer to join our rapidly-growing team.

In this role, you will be responsible for designing, building, and maintaining the hardware-in-the-loop (HITL) testbeds that serve as the primary proving ground for every satellite we build and fly.

Responsibilities:

  • Own the full lifecycle of flatsat and HITL testbed builds, from initial design and BOM development through hardware procurement and software bring-up
  • Scope and design harnessing needs, coordinating with manufacturing to produce custom harnesses for flight-like hardware
  • Serve on a rotating on-call point of contact for testbed health, triaging anomalies and managing access for other engineers
  • Diagnose and resolve hardware and software failures on the testbed, spanning firmware interfaces, flight software, and physical components
  • Drive testbed architecture decisions, including hardware allocation tradeoffs and risk mitigation for testbed contention
  • Expand simulation capabilities as new satellite blocks come online, integrating motor emulators and deployment simulators
  • Develop tooling to improve testbed observability, monitoring, and automated operations
  • Assist in recruiting, interviewing, and hiring additional teammates to our rapidly-growing team

Requirements:

  • Bachelor's degree in EE, AE, CS (or equivalent background knowledge)
  • 2-5+ years of experience in hardware integration, systems bring-up, or test engineering
  • Comfort working across hardware and software, from rack assembly to debugging Python tracebacks
  • Experience with embedded systems, EGSE, or laboratory hardware like logic analyzers and oscilloscopes
  • 2+ years of experience with Python (or equivalent high-level scripting language) for test automation
  • 1+ years of experience with Linux and shell command line tools
  • 1+ years of experience with version control systems (git or equivalent)
  • Experience reading schematics and debugging circuits that interface with embedded software
  • Strong debugging instincts and a methodical approach to documenting novel failures
  • Excellent written and verbal communication skills
  • A passion for building things, including working in a fast-paced environment and hands-on development

What we offer:

  • Base salary: $150,000-$215,000 USD
  • Equity package via incentive stock options
  • High-quality company-subsidized healthcare
  • Disability and life insurance
  • 401(k) retirement planning
  • Flexible PTO
  • Free on-site catered meals
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://job-boards.greenhouse.io/astranis/jobs/4694895006