> Markdown version of [/jobs/ext/3865669-thermal-performance-engineer-in-united-states](https://www.wearedevelopers.com/jobs/ext/3865669-thermal-performance-engineer-in-united-states). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Thermal Performance Engineer in , United States - **Company:** Energy Jobline - **Location:** United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Computer-Aided Design, SolidWorks (CAD), Python (Programming Language), MATLAB, Simulation Software, Software Technical Review, Ansys - **Published:** October 22, 2026 - **Apply:** https://www.energyjobline.com/job/thermal-performance-engineer-united-states-32022409 ## About the Role Bachelor's degree or higher in Mechanical, Thermal, Aerospace Engineering, or a related discipline. ~5+ years of experience in thermal/mechanical engineering, design, and analysis. ~ Strong experience in electronics thermal management , including PCBA, box-level, and system-level thermal design. ~ Proficiency with ANSYS, Thermal Desktop, or equivalent thermal simulation software . ~ Strong understanding of heat-transfer principles, including conduction, convection, and radiation. ~ Experience developing thermal resistance networks and reduced-order models. ~ Experience with thermal testing, model correlation, and environmental qualification. ~ Familiarity with mechanical CAD tools such as SolidWorks. ~ Ability to work on-site in Westminster, Colorado. Experience with spacecraft, satellite, or aerospace thermal control systems. Thermal management experience with phased arrays, antennas, or high-power RF electronics . Experience analyzing electronics at the die, package, or component level. Proficiency in Python, MATLAB, or similar scripting . Work on advanced communications hardware for space and aerospace applications. Take ownership of challenging thermal engineering projects from concept to qualification. Join a fast-paced, innovative engineering environment. If you're an experienced Thermal Engineer passionate about solving complex thermal challenges in the space industry, we'd love to hear from you. ## Description to lead the thermal design, analysis, and validation of next- aerospace electronics and space hardware. This is an exciting opportunity to work on cutting-edge technology, collaborating with mechanical, electrical, and RF engineering teams to develop high-performance thermal solutions from initial concept through manufacturing, testing, and qualification. Design and analyze thermal management solutions for spacecraft electronics, PCBAs, enclosures, and integrated systems. Perform conductive, convective, and radiative heat-transfer analysis. Build thermal resistance networks and reduced-order thermal models. Support thermal chamber and TVAC testing, correlating analytical models with test results. Collaborate with cross-functional engineering teams to optimize thermal performance. Develop automation tools and scripts to improve thermal analysis processes. Support technical design reviews, manufacturing, and hardware qualification.