Thermal Engineer (Senior)
Apex Space - Los Angeles
Posted Oct 30, 2025
Benefits
- Parental leave
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- Non-birth-parent leave
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- Family-building benefits
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- Fertility benefits: Not verified
- Adoption assistance: Not verified
- Surrogacy assistance: Not verified
- Mental health support
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- Relocation assistance
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- Childcare support
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- Learning budget
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- Salary
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- 401(k) match
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Schedule
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- Weekend work
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Application
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- Assessment
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- Deadline
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Where they hire
State eligibility is not yet verified.
About this role
Thermal Engineer (Senior) Los Angeles 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 Role Requirements: - U.S. Persons status is required as this position requires access to export-controlled data. - Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a related field. - 5+ years of experience in thermal engineering, preferably in spacecraft or aerospace systems. - Proficiency with thermal analysis tools, especially Ansys Thermal Desktop. - Strong understanding of spacecraft thermal control systems. - Familiarity with thermal margin definitions per MIL-STD, Aerospace TOR, or vendor command media. - Proficiency with Siemens NX and Teamcenter. - Experience with thermal vacuum testing, thermal test instrumentation, and data acquisition systems. - Working knowledge of 2-phase thermal control systems. - Strong analytical, problem-solving, and communication
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