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Senior Radiation Test Engineer

Astranis - San Francisco

Posted May 12, 2026

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About this role

Senior Radiation Test Engineer San Francisco 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. Senior Radiation Test Engineer 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. Role - Design fault tolerant electrical systems for operating in a radiation environment - Simulate and model the GTO and GEO radiation environments - Coordinate and run radiation testing campaigns to upscreen components - Work with the structures team to determine the proper shielding levels across the spacecraft - Integrate these systems into the spacecraft by working closely with the rest of the team - Support other electrical design, bringup, and test activities - Assist

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