Thermal Engineer

Sidus Space®, Inc. (NASDAQ: SIDU) is an innovative space and defense technology company offering flexible, cost-effective solutions, including satellite manufacturing and technology integration, AI-driven space-based data solutions, mission planning and management operations, AI/ML products and services, and space and defense hardware manufacturing. With its mission of Space Access Reimagined®, Sidus Space is committed to rapid innovation, adaptable and cost-effective solutions, and the optimization of space system and data collection performance. With demonstrated space heritage, including manufacturing and operating its own satellite and sensor system, LizzieSat®, Sidus Space serves government, defense, intelligence, and commercial companies around the globe.


Strategically headquartered on Florida's Space Coast, Sidus Space operates a 35,000-square-foot space manufacturing, assembly, integration, and testing facility and provides easy access to nearby launch facilities. But it's our people who truly set us apart. We foster a culture of collaboration, continuous learning, and agility, empowering our team to innovate and evolve in a rapidly changing industry. Join us at Sidus Space to be part of something extraordinary and help shape the future of space access!

Job Summary

Sidus Space is seeking a Thermal Engineer with experience in spacecraft, satellite systems, or other space-related hardware. The ideal candidate will be responsible for the thermal analysis, modeling, and testing of circuit cards, electronic assemblies, and satellite components to ensure system reliability and performance in harsh space environments.


This position is expected to be onsite in Cape Canaveral


Essential Duties/Responsibilities

• Perform detailed thermal analyses on circuit cards, electronic assemblies, and spacecraft hardware using industry-standard tools.
• Develop thermal models to support design decisions for satellites and other space systems.
• Evaluate thermal performance, identify potential issues, and propose design improvements.
• Support thermal vacuum testing, thermal cycling, and environmental qualification.
• Collaborate closely with electrical, mechanical, and systems engineering teams to integrate thermal considerations into multi-disciplinary designs.
• Prepare technical documentation, analysis reports, and presentations for design reviews.
• Work with manufacturing and test teams to ensure design intent is met throughout the product lifecycle.
• Support mechanical design projects as required.
• Communicate professionally and effectively with internal and external customers.
• Treat all coworkers with respect and dignity ensuring a collaborative culture is continually developed and maintained.
• Other duties as assigned**

Required Education and Experience

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related field.
• 3+ years of experience in thermal analysis or thermal engineering.

Preferred Qualifications

• Experience in spacecraft or satellite thermal design.
• Proficiency with tools such as Thermal Desktop, SINDA/FLUINT, ESATAN, or similar thermal analysis software.
• 2+ years of mechanical design experience with CAD tools such as SolidWorks or similar software.

Bonus Skills

• Experience with CFD tools or heat transfer simulation software.
• Proficiency interpreting engineering drawings, schematics, and design requirements.
• Experience with satellite integration and test.
• Experience supporting environmental testing (TVAC, thermal cycling).
• Familiarity with high-density circuit cards analysis and electronic packaging.
• Familiarity with reliability engineering and component derating for space applications.

Physical Requirements

• Prolonged periods standing or walking on hard surfaces
• Ability to travel <10%
• Ability to lift up to 30 lbs.

Total Rewards and Perks

At Sidus Space, we ask a lot of our team members, which is why we give so much in return. In addition to a competitive salary, a Best-in-Class benefit program with a generous employer paid portion as well as a matching 401(k) on Day ONE, we offer a lot of perks, including:

• Jeans every day
• Regular onsite food trucks
• 5 free company t-shirts for Manufacturing Staff
• Paid Time Off (vacation and sick days) and 11 paid holidays
• Adjustable stand-up desks
• Employee referral bonus program
• Educational assistance and professional training opportunities
• Company golf outings and other social events

Additional Eligibility Qualifications

• All candidates selected will be subject to a background investigation and drug screen
• To conform to U.S. Government International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

• Must be able to perform the essential functions of the position satisfactorily and, if requested, reasonable accommodations will be made to enable individuals with disabilities to perform the essential functions of their job, absent undue hardship.

SIDUS SPACE is an Equal Opportunity Employer fostering a respectful work culture that values all contributors. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Affirmative Action and Disability Accommodation

Applicants wishing to receive information on Sidus Space's Affirmative Action Plans, or applicants requiring a reasonable accommodation in order to participate in the application and/or interview process, please contact us at View email address on click.appcast.io