Spacecraft Thermal Engineer II

Firefly Aerospace

Thermal Engineer developing and maintaining spacecraft thermal models and solutions at Firefly Aerospace. Collaborating on complex thermal analysis, testing, and design initiatives.

Posted 7/1/2026full-timeCedar Park • Texas • 🇺🇸 United StatesMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Independently develop and maintain subsystem and vehicle-level spacecraft thermal models.
Own thermal analyses from model setup through documentation with minimal oversight.
Execute thermal trade studies supporting design, integration, testing, and mission operations.
Develop thermal control solutions including MLI, radiator sizing, heater strategies, coatings, and other passive and active thermal control technologies.
Coordinate thermal environments with internal engineering teams and external customers.
Organize and support testing, including vehicle-level thermal vacuum testing.
Support the thermal control subsystem on console during launch operations.
Correlate analytical models using thermal vacuum and environmental test data.
Break large analytical efforts into actionable tasks while managing priorities across multiple programs.
Document analysis results for internal and customer design reviews.
Mentor entry-level engineers by reviewing models, analyses, and reports.
Identify model sensitivities, uncertainties, and technical risks while recommending mitigation strategies.
Contribute to process improvements, automation, and modeling best practices.

Requirements

What you’ll need

B.S. in Aerospace Engineering, Mechanical Engineering, Physics, or related field
Approximately 38 years of spacecraft or aerospace thermal analysis experience
Strong experience with Thermal Desktop and related thermal analysis software
Strong understanding of spacecraft thermal control systems
Experience correlating analytical models with test data
Working knowledge of Python and MATLAB
Excellent technical communication skills
Demonstrated ability to independently execute complex engineering analyses
Desired M.S. degree
Experience with ANSYS SpaceClaim, NX, or Simcenter
Experience developing thermal test plans and coordinating thermal vacuum tests
Familiarity with NASA spacecraft thermal standards
Experience supporting spacecraft through integration and environmental testing

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Firefly Aerospace Website LinkedIn All Job Openings 501 - 1000 employees Founded 2017 🚀 Aerospace 🚗 Transport 🏢 Enterprise Aerospace
Transport
Enterprise Firefly Aerospace is a space transportation company specializing in developing launch vehicles and lunar landers. They offer innovative and affordable launch options, including the Alpha small-lift vehicle and Blue Ghost lander, facilitating payload delivery to the Moon and beyond. Firefly Aerospace aims to provide end-to-end space transportation solutions and has made significant achievements such as landing on the Moon and securing missions for major organizations like NASA and the U. S. Space Force. Spacecraft Thermal Engineer II Job not on LinkedIn 🔥 6 hours ago 🏢 Cedar Park – Onsite ⏰ Full Time 🟡 Mid-level 🟠 Senior 👷🏻‍♀️ Engineer Python Apply Now Find Hiring Managers Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Independently develop and maintain subsystem and vehicle-level spacecraft thermal models.
Own thermal analyses from model setup through documentation with minimal oversight.
Execute thermal trade studies supporting design, integration, testing, and mission operations.
Develop thermal control solutions including MLI, radiator sizing, heater strategies, coatings, and other passive and active thermal control technologies.
Coordinate thermal environments with internal engineering teams and external customers.
Organize and support testing, including vehicle-level thermal vacuum testing.
Support the thermal control subsystem on console during launch operations.
Correlate analytical models using thermal vacuum and environmental test data.
Break large analytical efforts into actionable tasks while managing priorities across multiple programs.
Document analysis results for internal and customer design reviews.
Mentor entry-level engineers by reviewing models, analyses, and reports.
Identify model sensitivities, uncertainties, and technical risks while recommending mitigation strategies.
Contribute to process improvements, automation, and modeling best practices. 🎯 Requirements
B.S. in Aerospace Engineering, Mechanical Engineering, Physics, or related field
Approximately 38 years of spacecraft or aerospace thermal analysis experience
Strong experience with Thermal Desktop and related thermal analysis software
Strong understanding of spacecraft thermal control systems
Experience correlating analytical models with test data
Working knowledge of Python and MATLAB
Excellent technical communication skills
Demonstrated ability to independently execute complex engineering analyses
Desired M.S. degree
Experience with ANSYS SpaceClaim, NX, or Simcenter
Experience developing thermal test plans and coordinating thermal vacuum tests
Familiarity with NASA spacecraft thermal standards
Experience supporting spacecraft through integration and environmental testing Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs Water/Wastewater Engineer 🕒 April 13 Baxter & Woodman 201 - 500 Website LinkedIn All Job Openings Water/Wastewater Engineer managing water and wastewater facility projects at Baxter & Woodman. Overseeing design, client interactions, and compliance with regulations while leading project teams. 🏢 Cedar Park – Onsite 💵 $100k - $140k / year ⏰ Full Time 🟡 Mid-level 🟠 Senior 👷🏻‍♀️ Engineer View More Engineer Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Thermal Model DevelopmentThermal Control SolutionsAnalytical Model CorrelationThermal Trade StudiesThermal Test Plan Development

Soft Skills

Technical CommunicationMentoring