Spacecraft Structures Test Engineer

Spacecraft represent the most pressing unmet need across the entire aerospace industry. As more launch vehicles come online and the cost to orbit decreases, more companies launching payloads to space continue to emerge.For the first time in history, this influx of payload companies combined with reduced launch costs has resulted in a massive increase in need for commercial spacecraft platforms, known as satellite buses. These buses hold the payloads of our customers and are flown on launch vehicles.Apex manufactures these satellite buses at scale using a combination of software, vertical integration, and hardware that is designed for manufacturing. Our spacecraft enable the future of society: ranging from earth observation to communications and more.We’d love for you to join us on our mission of providing humankind access to the galaxy beyond our planet.About The RoleSpacecraft Structures Test EngineerApex is looking for a Spacecraft Structures Test Engineer to own the validation of flight hardware from first build through system level testing. This is a highly multidisciplinary role focused on structural and mechanical testing, with strong crossover into electrical and system-level validation. You’ll work across mechanical, avionics, and production teams to define how we test, build the infrastructure to do it, and execute campaigns that prove our spacecraft in real environments.ResponsibilitiesOwn structural test strategy and execution across components, subsystems, and fully integrated spacecraftDevelop and operate fluid, hydraulic, and pressurized systems, including high-pressure and cryogenic environmentsDesign and integrate data acquisition and instrumentation (strain gauges, load cells, pressure transducers, thermocouples)Write and automate test procedures and scripts (primarily Python) for execution and data analysisLead test operations end-to-end, including setup, execution, and post-test reviewTroubleshoot hardware and drive root cause analysis on structural test failuresPartner cross-functionally with design, analysis, avionics, and manufacturing to close the loop between test results and designRequirementsBachelor’s degree in mechanical, aerospace, or related engineering field3+ years of experience in spacecraft, launch vehicle, or complex structural testingBackground designing large-scale structural test stands or load application systemsStrong fundamentals in structural mechanics, including strength, stability, and fatigueExperience with structural analysis (hand calcs and/or FEM) and test correlationHands-on experience with instrumentation and lab equipment (strain, load, pressure, thermal measurements)Experience designing, building, or operating structural test systems and hardwareExperience with test automation and scripting (Python or similar)Ability to operate in fast-paced, high-ownership environments with evolving requirementsNice To HavesExperience with environmental testing (TVAC, vibration, shock, EMI/EMC)Familiarity with NX/Teamcenter, Nastran, or ANSYSExperience working with high-pressure or cryogenic systemsWhy Join Apex?Apex believes in creating a work environment that you look forward to embracing every day. Our employees love working at Apex, and we want you to love it too. We're a fast-growing startup backed by $200M in Series D funding, and we invest heavily in our people from day one.What We Offer For Full-time EmployeesShared upside: Receive equity in Apex, letting you benefit from the work you createBest-in-class healthcare: 100% company-paid medical, dental, and vision for you and your dependents, plus $100k life insurance at no costComprehensive PTO package to reset and recharge - starting at 15 days vacation, growing to 20+ days annually, plus 10 paid holidaysCompetitive 401(k) plan with generous matching - 100% match on first 3%, 50% on next 2%8 weeks paid parental leave plus childcare reimbursement up to $350/day for work-related travelDaily catered lunch and unlimited snacks to keep you fueled throughout the dayVibrant community: Monthly office BBQs, pickleball tournaments, run club, and social gatherings for you and your familyYour dream desk setup and all the tools you need to be your most productive selfWorld-class Playa Vista office with EV chargers, with the benefit of in-person collaboration with amazing coworkers and flexibility to integrate work and lifeReal impact opportunity: Work alongside experts from aerospace, new space, and other cutting-edge industries to make a lasting differenceReady to join a team where your contributions matter and your future is bright? Let's build something extraordinary together.Equal Opportunity EmployerApex Technology, Inc. is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Candidates and employees are always evaluated based on merit, qualifications, and performance. We will never discriminate on the basis of race, color, gender, national origin, ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.Compensation Range: $100K - $187K