Job Title: Software Development Engineer in Test (Must Meet ITAR Requirements) Job Description We are seeking a dedicated Software Test Engineer to join our Integrated Engineering Solutions Team. In this role, you will collaborate with a world-class team of engineers and business leaders to ensure the reliability and efficiency of power system avionics hardware and power management algorithms/software. You will be involved in all phases of test software development, from requirements gathering to implementation, testing, and deployment. The focus will be on developing automated test cases for hardware-in-the-loop testing, utilizing power emulation test racks and satellite flight hardware. Responsibilities + Develop automated test cases for hardware-in-the-loop testing. + Work with stakeholders and peer teams to build verification matrices and test cases for satellite power subsystems, batteries, and solar arrays. + Collaborate with hardware, software, and test infrastructure teams to integrate, test, and validate new features using synthetic data in simulation environments or hardware-in-the-loop testbed systems. + Develop and utilize monitoring and alerting systems to track space and ground infrastructure health and stability. + Create and maintain robust and well-documented APIs to allow other engineers and partners to develop their custom models, integrations, and test assertions. + Automate operational workflows to reduce manual intervention and improve system efficiency. + Develop software systems in Python. Essential Skills + 4+ years of professional software development testing experience. + 4+ years of experience in building test automation frameworks and tools. + Proficiency in Python for interfacing with test equipment and visualizing results. + Experience with hardware-in-the-loop testbeds and integrated vehicle checkouts. + Experience in hardware and software verification for satellite bus subsystems, ground stations, electrical power systems, batteries, or electronics/avionics. Additional Skills & Qualifications + Bachelor's degree in Computer Science, Computer Engineering, or Electrical Engineering. + Experience with system test verification in power conversion, power systems, solar, battery, electric vehicles, satellites, or rockets. + Knowledge of Ruby and systems engineering principles. + Strong organizational skills and ability to communicate key requirements effectively. + Cross-organizational communication skills, with the ability to clearly and persuasively convey ideas and concerns. + Positive attitude and a willingness to work hard. Work Environment This is a fast-paced, intellectually challenging position focused on verifying product and system requirements through rigorous test campaigns. You will be involved in hardware-in-the-loop testing and production acceptance testing, developing test processes and tools, including automation, to scale test campaigns while maintaining high standards for quality and test coverage. You will also perform tests on flight hardware and troubleshoot issues identified during test campaigns. Job Type & Location This is a Contract position based out of Los Angeles, CA. Pay and Benefits The pay range for this position is $65.00 - $80.00/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave) Workplace Type This is a fully onsite position in Los Angeles,CA. Application Deadline This position is anticipated to close on Feb 13, 2026. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing due to a disability, please email actalentaccommodation@actalentservices.com (%20actalentaccommodation@actalentservices.com) for other accommodation options.