Radiation Assurance Engineer

AST SpaceMobile and our global partners are building the first and only space-based cellular broadband network to be accessible by standard smartphones. Called SpaceMobile, this ultra-powerful network is being designed to provide connectivity at 4G/5G speeds everywhere on the planet - on land, at sea and in flight.

We are seeking a motivated Radiation Assurance Engineer (Electronic Components & Subsystems) to join our team assessing the suitability of electronic components and subsystems for operation in orbit. The successful candidate will analyze electronic parts and systems, design and build radiation test hardware, execute radiation test campaigns, and provide technical assessments on component performance in harsh space environments. This is a hands-on, laboratory-focused role within fast-paced engineering projects that require strong electronics design expertise and a proactive problem-solving mindset.

• Analyze electronic components and subsystems, including datasheets, functional architectures, and operating modes, to define radiation assessment strategies and testing requirements.

• Design schematics, PCB layouts, test boards, fixtures, and daughterboards to evaluate devices under representative operating conditions.

• Build, integrate, troubleshoot, and validate electronic test setups, including power, signal generation, biasing, loading, and data acquisition systems.

• Operate laboratory instrumentation such as oscilloscopes, power supplies, electronic loads, multimeters, source-measure units, and data loggers.

• Develop and maintain test automation, control, and monitoring scripts using tools such as Python and LabVIEW.

• Support and execute radiation test campaigns at external irradiation facilities, including setup, installation, operation, troubleshooting, and data collection.

• Analyze radiation test results, assess device degradation and failure mechanisms, and evaluate performance against mission requirements.

• Prepare detailed test plans, procedures, technical reports, and radiation assurance assessments.

• Collaborate with hardware, systems, and mission engineering teams to support design decisions and risk mitigation strategies.

• Maintain laboratory equipment, test hardware inventory, and technical documentation to enable efficient project execution and reuse of test setups.

• Strong analytical and problem-solving skills.

• Excellent attention to detail and commitment to accurate documentation.

• Hands-on approach with the ability to rapidly prototype and troubleshoot technical solutions.

• Strong interpersonal, collaboration, and teamwork skills.

• Effective verbal and written communication skills.

• Excellent organizational and time-management abilities.

• Ability to work independently and manage multiple priorities simultaneously.

• Adaptability and effectiveness in a fast-paced project environment.

• Altium Designer

• KiCad

• Python

• LabVIEW

• SCPI and VISA instrument control tools

• Oscilloscopes

• Power Supplies

• Electronic Loads

• Digital Multimeters

• Source-Measure Units (SMUs)

• Data Loggers

• PCB Design and Schematic Capture Tools

• FPGA and Microcontroller Development Environments

• Ability to work in a standard office and electronics laboratory environment.

• Ability to use computers, laboratory equipment, and testing instrumentation for extended periods.

• Ability to assemble, solder, rework, and test prototype electronic hardware.

• Ability to transport, set up, and operate test equipment at customer and external radiation testing facilities.

• Willingness and ability to travel domestically and internationally as required for radiation test campaigns.

• Ability to work occasional night shifts during test campaigns when required.

• Ability to comply with controlled-access facility procedures and radiation safety requirements.

This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands.