Radiation Engineer Jobs in California (NOW HIRING)

Denver, CO or Long Beach, CA

True Anomaly delivers decisive capabilities for space superiority. We build autonomous spacecraft, advanced payloads, mission software, and space-based interceptors — enabling the U.S. and its Allies to secure the space environment and counter threats from the ultimate high ground.

True Anomaly is seeking a skilled Radiation Engineer II to support the radiation analysis, component testing, and mitigation strategy development for our spacecraft electrical systems. You will be a key technical contributor to radiation hardness assurance across our programs — developing environment models, executing test campaigns, and maintaining the parts library that underpins our mission reliability. You bring hands-on experience with radiation test facilities, strong analytical skills, and the ability to communicate radiation and reliability risks clearly to engineers and program stakeholders alike.

• Develop TID, SEE, and DDD models for any orbital regime using industry-standard tools and best practices
• Budget, schedule, plan, and execute radiation test campaigns at external facilities (protons, heavy ions, gamma, neutron) or through third-party partners
• Provide unit and mission-level radiation analyses including SEE rates, availability estimates, lifetime TID and DDD exposures, and associated artifacts for requirements verification
• Support reliable part selection, circuit design, and passive and active radiation mitigation strategies to increase probability of mission success
• Maintain and grow the parts library database with critical radiation and reliability information
• Assist in developing radiation and reliability engineering processes and provide cross-discipline training to instill a culture of survivability awareness
• Support proposal writing, requirements development, schedule baselines, customer briefings, and design reviews (SRR, PDR, CDR) with credible radiation and reliability analyses
• Communicate product development status and issues with leadership and stakeholders

• Bachelor's degree in Physics, Electrical Engineering, Nuclear Engineering, or related field
• 2-4 years of professional experience in space radiation engineering or a related discipline
• Proficiency with radiation environment modeling tools such as AE9/AP9/SPM, CREME96, OMERE, or SPENVIS
• Familiarity with radiation test standards including MIL-STD-750, MIL-STD-883, ECSS-Q-ST-60-15C, and NASA testing guidelines
• Experience planning and executing SEE, TID, and DDD test campaigns
• Proficiency with data analysis and modeling software (Python, MATLAB, or equivalent)
• Strong lab experience with oscilloscopes, logic analyzers, source meters, power supplies, and automated data collection
• Excellent written and verbal communication skills

• Master's or Ph.D. in Electrical Engineering, Physics, Reliability Engineering, or related field
• Familiarity with Radiation Hardness by Design (RHbD) principles
• Familiarity with radiation transport and shielding analysis tools (NOVICE, FASTRAD, GEANT4)
• Familiarity with circuit simulation tools such as LTSpice or PSpice
• Familiarity with space charging effects on materials and electronics
• Customer-facing experience presenting radiation and reliability assessments at design reviews
• Experience working in a fast-paced, startup environment or a similarly dynamic setting

• Base Salary: DEN: $90,000 - $125,000 | LB: $95,000 - $130,000
• Equity + Benefits including Health, Dental, Vision, HRA/HSA options, PTO and paid holidays, 401K, Parental Leave

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, location, and experience.

Additional requirements include:

• Work Location — Successful candidates will be located near Denver or Long Beach locations. While we observe a hybrid work environment, most work must be done on site.
• Work environment — the work environment; temperature, noise level, inside or outside, or other factors that will affect the person's working conditions while performing the job.
• Physical demands — the physical demands of the job, including bending, sitting, lifting and driving.

This position will be open until it is successfully filled. To submit your application, please follow the directions below.

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

True Anomaly is committed to equal employment opportunity on any basis protected by applicable state and federal laws. If you have a disability or additional need that requires accommodation, please do not hesitate to let us.