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Salary: USD 180,000 - 210,000 / annual
AscendArc is a startup revolutionizing the satellite communications industry. We are seeking a Senior Thermal Engineer to join our Mechanical Engineering team in Beaverton, Oregon, as an early member of a ground-floor opportunity. You will lead the development of global spacecraft thermal models and subsystem trade studies for a revolutionary satellite communications system, translating mission environments into thermal design requirements while balancing heritage systems with first-principles analysis.
Key responsibilities include defining and implementing thermal control system specifications and test requirements, influencing hardware qualification plans, and supporting test campaigns with analysis, instrumentation planning, and data interpretation. You will own the thermal engineering discipline from concept through launch, working in a cradle-to-grave design environment.
Required qualifications: Bachelor's or Master's degree in Mechanical or Aerospace Engineering with focus in thermal sciences or related discipline; 5+ years of experience in thermal analysis, preferably in spacecraft or aerospace applications; proficiency with industry-standard thermal modeling tools (Ansys Thermal Desktop preferred); strong understanding of thermal control systems, space environments, and heat transfer fundamentals; and hands-on experience supporting thermal testing including instrumentation planning and data analysis.
We value high-caliber individuals with drive and creativity who thrive in fast-paced, collaborative environments where great ideas rise to the top. You should bring energy, curiosity, and a responsible engineering mindset. This is a hybrid role based in Beaverton, with team members typically spending three days per week in the office and up to two days working remotely. Due to U.S. export control regulations, this position is only open to U.S. persons (U.S. citizens, lawful permanent residents, or those with refugee/asylee status).
