# Thermal Engineer II at Quantum Space

Thermal Engineer II at Quantum Space in Rockville, MD. Full-time, paying $100k–$140k. Posted October 30, 2026.

- Company: Quantum Space
- Location: Rockville, MD
- Job type: Full-time
- Pay: $100k–$140k
- Experience: 2+ years
- Posted: 2026-10-30
- Apply: https://job-boards.greenhouse.io/quantumspacellc/jobs/4470927009
- Source: https://jobmagic.ai/jobs/thermal-engineer-ii-quantum-space-7d8ct4

## Description

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.

**Apply now. Join us in building the next generation of spacecraft.**