HITL Test Engineer

astranis· 3411 Hardware Testing
Apply Now ↗
📍 San Francisco, CA💰 USD 150K–215K

About this role

Astranis builds advanced satellites for high orbits, expanding humanity’s reach into the solar system. Today, Astranis satellites provide dedicated, secure networks to highly-sophisticated customers across the globe— large enterprises, sovereign governments, and the US military. With five satellites on orbit and many more set to launch soon, the company is servicing a backlog of more than $1 billion of commercial contracts.

Astranis is the preferred satellite communications partner for buyers with stringent requirements for uptime, data security, network visibility, and customization. Astranis has raised over $750 million from some of the world’s best investors, from Andreessen Horowitz to Blackrock and Fidelity, and employs a team of 450 engineers and entrepreneurs. Astranis designs, builds, and operates its satellites out of its 153,000 sq. ft. headquarters in Northern California, USA.

HITL Test Engineer

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. You will collaborate with nearly every engineering team — Flight Software, Guidance Navigation & Control, Avionics, Power, Payload, and Mission Ops — to ensure our testbeds are flight-representative, reliable, and always ready to support testing. If it runs on a satellite, it gets proven on HITL first.

Role

  • 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

  • Bachelors 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, proprietary test hardware, 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

Bonus

  • Familiarity with flight software architectures, telemetry systems, or simulation frameworks
  • Prior experience with networked lab infrastructure, Kubernetes, or Linux system administration
  • Please apply even if you do not meet every single criterion listed above
What we offer: 
 
All our positions offer a compensation package that includes equity and robust benefits.
 

Base pay is just one component of Astranis’s total rewards package. Your compensation also includes a significant equity package via incentive stock options, high-quality company-subsidized healthcare, disability and life insurance, 401(k) retirement planning, flexible PTO, and free on-site catered meals.

Astranis pay ranges are informed and defined through professional-grade salary surveys and compensation data sources. The actual base salary offered to a successful candidate will additionally be influenced by a variety of factors including experience, credentials & certifications, educational attainment, skill level requirements, and the level and scope of the position.
Base Salary
$150,000—$215,000 USD
U.S. Citizenship, Lawful Permanent Residency, or Refugee/Asylee Status Required
(To comply with U.S. Government space technology export regulations, applicant must be a U.S. citizen, lawful permanent resident of the United States, or other protected individual as defined by 8 U.S.C. 1324b(a)(3))
 
Our mission and our products are meant to connect the world and everyone in it, regardless of gender, race, creed, or any other distinction. We believe in a diverse and inclusive workplace, and we encourage all people to join our team and bring their unique perspective to help make us stronger.

Frequently Asked Questions

What is the salary for the HITL Test Engineer role at astranis?
The listed salary for this HITL Test Engineer position at astranis is USD 150K–215K. This is an full-time role.
Where is the HITL Test Engineer position at astranis located?
This HITL Test Engineer role at astranis is based in San Francisco, CA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the HITL Test Engineer at astranis belong to?
This HITL Test Engineer position is part of the 3411 Hardware Testing department at astranis. See the full job description for more information about the team structure and responsibilities.
How do I apply for the HITL Test Engineer position at astranis?
Click the "Apply Now" button on this page. You will be redirected to astranis's official application portal hosted on greenhouse where you can submit your application directly.
When was the HITL Test Engineer job at astranis posted?
This HITL Test Engineer position at astranis was posted on Jul 6, 2026. Apply as soon as possible — early applications are often reviewed first.
HITL Test Engineer
astranis · 💰 USD 150K–215K
Apply for this role ↗

You'll be redirected to astranis's official application page on Greenhouse.