Radiation Engineer

Kapta Space, a VC-funded early-stage startup in Seattle, WA, is breaking new ground in Geospatial Intelligence. Our technology centers around a proven, scalable electronically-steered radar for sophisticated spaceborne applications such as earth observation using synthetic aperture radar (SAR) techniques, as well as enabling advanced defense missions such as target tracking on the ground and in the air.

Kapta is seeking a Radiation Engineer to lead radiation analysis, testing, and qualification across Kapta’s avionics and payload electronics. The radiation engineer will define the radiation environment for our missions, model system response, plan and execute radiation test campaigns, and support technical engineering design decisions to ensure on-orbit hardware reliability and performance. This role has significant scope and requires a strong, self-driven engineer capable of working independently in a fast-paced, multi-disciplinary environment.

• Own radiation environment definition and mapping for Kapta missions
• Build radiation budgets, calculate margins, and assess system-level reliability
• Plan and execute Single Event Effect (SEE), Total Ionizing Dose (TID), and Displacement Damage (DD) test campaigns at the component and assembly level
• Analyze test results, identify vulnerabilities, and recommend mitigation strategies
• Create and manage internal tools and workflows for radiation analysis, component qualification, and validation of component selection. Partner with engineering teams to inform component selection, derating, and architecture decisions
• Monitor manufacturer-issued product change notifications (PCNs) and assess their impact on radiation performance and qualification
• Support failure analysis and on-orbit anomaly investigations
• Drive improvements to internal standards for radiation modeling and verification
• Domestic travel required. Foreign travel possible.

• Bachelor’s degree in Electrical Engineering, Physics, Nuclear Engineering, or related field
• 5+ years of experience in radiation-effects engineering for space or high-reliability electronics
• Experience with performing or overseeing electrical circuit analysis and implementation of radiation effects mitigations
• Experience with radiation environment software modeling tools and resources (example: OMERE)
• Strong understanding of radiation effects, test methods, and test execution
• Hands‑on experience planning and executing radiation test campaigns
• Experience developing analysis tools, automation, and internal data systems to support modeling, testing, and engineering workflows. Comprehensive understanding of electronics (both digital and analog), schematics, and PCB layout principles
• Excellent communication skills, with ability to clearly present technical findings and collaborate effectively across engineering functions
• Must be eligible to obtain and hold a US DoD security clearance

• M.S. or Ph.D. in a relevant field
• Experience with radiation testing at the PCB and subassembly level
• Experience with FPGA/ASIC radiation characterization and mitigation
• Prior work in small, fast‑iteration aerospace teams

Concerned you do not meet all the requirements? Not a problem - please apply even if you do not meet all these criteria.

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Kapta Employees must be U.S. citizens, lawful U.S. permanent residents (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State or Commerce as applicable.

Kapta Space is committed to a diverse and inclusive workplace. We believe that diversity drives innovation, strengthens our team, and broadens our capabilities. We are an equal opportunity employer and do not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. We welcome applicants from all backgrounds and encourage individuals from underrepresented groups to apply.

Kapta Space does not engage with external recruiters or agencies without prior written agreement. If you are a recruiter (individual or agency) and wish to engage with Kapta Space for talent acquisition, please email

We may use artificial intelligence (AI) tools to assist our recruitment team but do not replace human judgment. All final hiring decisions are made by humans.