Senior Radiation Effects Engineer

Full Timesenior

San FranciscoPosted February 13, 2026

Job Description

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 Effects Engineer

As our Senior Radiation Effects 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 in recruiting, interviewing, and hiring additional teammates to our rapidly-growing team.

Requirements

Bachelor of Science degree in nuclear engineering, electrical engineering, physics, or equivalent technical field
A passion for hardware development, including working in a fast-paced environment and hands-on design and development
Experience with the Geostationary radiation environment (TID, SEE, DDD)
Experience with designing for and testing for radiation effects
Experience in testing analog and digital circuits
Experience with high reliability systems
US Citizenship or Green Card

Bonus

Electromechanical design experience
Experience running tests at radiation labs
Experience with designing dosimeter circuits
ECAD + MCAD Experience (Altium, Solidworks)

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

$160,000—$220,000 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.

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