Senior Thermal Engineer – Constellations

## Senior Thermal Engineer – Constellations Apply:
Reston, VA:
Space Coast, FL:
Huntsville, AL:
Denver, CO:
Greater Seattle Area:
Full time:
Posted Today:
R72192

Application close date:

Applications will be accepted on an ongoing basis until the requisition is closed.

At Blue Origin, we envision millions of people living and working in space for the benefit of Earth. We’re working to develop reusable, safe, and low-cost space vehicles and systems within a culture of safety, collaboration, and inclusion. Join our team of problem solvers as we add new chapters to the history of spaceflight!  The role is part of the In-Space Systems business unit, which is focused on addressing two of the most compelling challenges in spaceflight today: space infrastructure and increasing mobility on-orbit.

This role is part of the Blue National Security business unit, which is focused on delivering advanced space-based capabilities in support of national security, civil, and commercial missions. Within the Advanced Systems organization, the multi-disciplinary Future Concepts & Capabilities team operates at the forefront of systems engineering, formulation, and architecture, developing next-generation space systems that address the most demanding and consequential challenges in the space domain.

We are seeking a Senior Thermal Engineer to lead the thermal design and analysis for both satellite payloads and integrated in-space constellation solutions. This role is central to ensuring reliable performance of a diverse array of high-power payload systems operating in LEO and other orbital regimes. The ideal candidate brings deep expertise in thermal management of space-qualified hardware, RF / Opto-electrical components, radar systems, and/or specialized payload types, along with the ability to drive cross-disciplinary design integration across payload, mechanical, avionics, and power subsystems.

If you're looking for novel challenges and rewarding work, come join a team pushing the boundaries of space system design to solve the defense and civil domains' toughest problems!
** Special Mentions**
* *
* Location:

** This role can be based at any of the following Blue Origin locations:
Denver, CO;
Los Angeles, CA;
Space Coast, FL;
Reston, VA;
Huntsville, AL; or Kent, WA (Seattle area).
* ** Relocation:
** Relocation assistance is available for candidates relocating to one of the primary Blue Origin office locations.
* ** Travel:
** Up to 25% travel may be required depending on work location and program needs.
** Responsibilities include but are not limited to:
*** Lead thermal design & analysis for satellite-based, high-power payloads and associated power electronics.
* Develop detailed thermal models using tools such as Thermal Desktop, SINDA/FLUINT, or equivalent, covering conduction, radiation, and convection regimes as appropriate.
* Define and manage thermal interfaces across payload subsystems, including radiators, heat pipes, loop heat pipes, cold plates, and structural elements.
* Perform transient and steady-state thermal analyses to validate performance under mission profiles, including peak duty cycles, eclipse transitions, and worst-case environmental conditions.
* Develop thermal architecture for common bus/payload configurations reused across a production block, including tailoring for orbit plane, beta angle range, and payload variant.
* Select and defend the appropriate thermal qualification, margin, and acceptance approach (e.g., protoflight, workmanship-only TVAC on subsequent units, thermal cycling screening, lot acceptance sampling) based on build rate, mission class, and design life; tailor requirements per SMC-S-016 / MIL-STD-1540 as applicable.
* Define thermal model correlation strategy under limited test data,…