# Thermal Engineer II at Quantum Space > United States · Mid-level · Software engineering · open. Source: https://alderhq.app/jobs/greenhouse%3Aquantumspacellc%3A4470927009 (read 2026-11-10). ## Facts (observed) - Company: [Quantum Space](https://alderhq.app/companies/quantum-space) - Location text: Rockville, MD ; Quantum Space - Rockville, MD (HQ) - Where it can be done from (inferred): United States (evidence: "Location: Rockville, MD ; Quantum Space - Rockville, MD (HQ)") - Posted: 2026-10-30 (11 days ago) - First seen by alder: 2026-11-07 · last verified: 2026-11-07 - Reposted: 0 times · edited: 0 times - Apply on the employer's site: https://job-boards.greenhouse.io/quantumspacellc/jobs/4470927009 ## Pay and sponsorship - Posted pay: $100k–$140k per year (from the description) - Market band for similar posted roles (United States, n 429): p25 $112k, median $130k, p75 $150k ## Description (the employer's text) Quantum Space is redefining mobility and maneuverability in space. Our high-mobility spacecraft platforms support national security, civil, and commercial missions with unmatched flexibility and propulsion capability. We build fast and iterate quickly. ### Who We’re Looking For We are seeking a Spacecraft Thermal Engineer to contribute to the development, implementation, and validation of thermal control solutions for our spacecraft platforms. In this high-impact role, you will assist in major aspects of spacecraft thermal design, analysis, and verification, working closely with a fast-moving team of engineers and scientists to shape the future of in-space systems. This role is for an engineer who thrives in a startup-paced environment, can take broad responsibility for thermal system performance, while also rolling up their sleeves for hands-on integration and testing. ### Where You’ll Make an Impact - Develop high-fidelity spacecraft component thermal models for prediction of on-orbit performance - Review, refine, and correlate as-built thermal models and vendor-supplied thermal documentation - Collaborate closely with mechanical, electrical, and systems engineering teams to ensure spacecraft designs meet thermal requirements - Support thermal vacuum (TVAC) test planning, execution, correlation, and troubleshooting - Develop tools, workflows, and standards within the thermal ecosystem to improve efficiency and repeatability of future programs - Generate simplified models, thermal environments, and interface documentation for suppliers and customers - Review and approve component and assembly designs for thermal flight readiness - Produce engineering content and analyses for design reviews, test readiness reviews, and verification reports - Support integration, test, and launch-site operations for spacecraft thermal performance ### What It Takes - Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related field - 2+ years of relevant thermal engineering experience (spacecraft strongly preferred) - Advanced proficiency in Thermal Desktop, SINDA/FLUINT, or equivalent thermal analysis tools - Experience with spacecraft flight hardware, integration, and thermal vacuum testing - Familiarity with NASA, commercial, and industry standards for spacecraft design - Demonstrated experience correlating thermal models with test data ### Nice-to-Have Experience - Experience with spacecraft operations, thermal limits, and anomaly resolution - Knowledge of thermal coatings, adhesives, multilayer insulation (MLI), and related materials - Exposure to electrical component thermal modeling and PCB thermal behavior - Experience with heat pipes, loop heat pipes, radiators, and advanced thermal hardware - Understanding of orbital dynamics and thermal environments across varying mission profiles - Prior experience in a fast-paced startup or NewSpace environment ### What You’ll Get - Ownership – Take responsibility for spacecraft thermal system performance, from design and analysis through integration, testing, and flight readiness - Innovation – Support transformative aerospace and defense programs enabling next-generation space mobility and operations - Impact – Help ensure the thermal performance, reliability, and mission success of next-generation spacecraft - Growth – Join a collaborative engineering team working across advanced spacecraft technologies in a fast-paced, innovative environment - Compensation – Competitive salary, equity, and comprehensive benefits including medical, dental, vision, generous leave, FSA, 401(k) matching, and equity sharing Location: Rockville, MD Base Salary: $100,000-140,000 The salary range for this role is an estimate based on a wide range of compensation factors. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. Highly competitive equity grants are included in the majority of full time offers; and are considered part of Quantum Space's total compensation package. ### Additional Requirements To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. --- Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Aquantumspacellc%3A4470927009 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.