
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.
As our Senior Radiation Test Engineer you will be responsible for characterization of radiation environments for our missions and testing analysis for our spacecraft. This position requires hands-on experience validating parts for radiation environments specific to aerospace.
Requirements
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 builds low-cost satellites for high orbits.
Our first product, MicroGEO, offers the world’s lowest-cost satellite broadband. Operating in geostationary orbit, each MicroGEO satellite can provide dedicated satellites to small and medium-sized countries, Fortune 1000 companies, and other commercial customers. Astranis has built a $1 billion backlog for 12+ MicroGEO satellites launching over the next two years.
Astranis also offers services across orbits and use cases. With contracts in place with Space Force, NASA, and other government partners, Astranis is working across MEO and GEO to support government science, PNT, and communications missions.
Astranis has raised $750 million from top global investors and employs a team of over 400 engineers and builders, headquartered at Historic Pier 70 in San Francisco, California.