Sr. Spacecraft Thermal Engineer (Top Secret Clearance ...

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 spaceflightThe 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.As part of a hardworking team of specialists, technicians, and engineers (use as appropriate), you will contribute to the definition and development of spacecraft thermal control systems. The Sr. Spacecraft Thermal Engineer is an individual contributor within Blue Origin's In-Space Systems Business Unit - Blue Ring Platform. You should be comfortable working in a fast-paced and often uncertain environment, contributing to innovative solutions, while demonstrating personal leadership, technical competence, and attention to detail.Special Mentions:Relocation providedTravel expected up to 25% of the timeActive Top Secret Security Clearance requiredResponsibilities include but are not limited to:Drives the development of thermal systems including system architecture definition, thermal system modeling, component sizing, and design.Perform trade studies relating to selection of material and subsystem hardware.Perform hand calculations to screen concepts without detailed modeling and to sanity check finite element model results.Develop vehicle-level thermal models using SINDA/FLUINT with Thermal Desktop.Develop and maintain system analysis documentation.Perform steady state & transient thermal analysis of spacecraft thermal systems as well as tracking of system performance in ground ops, TVAC testing, launch, Earth orbit, and beyond Earth orbit environments.Provide thermal engineering leadership & support for the development of thermal vacuum (TVAC) test procedures, scripts and installation designs.Provide thermal engineering leadership & support for thermal hardware design, documentation (drawings and model based designs), procurement, planning, procedural & operations support of Spacecraft assembly, integration & test (AI&T) efforts.Support existing & development of thermal data analytics architecture (GitLab or similar)Minimum Qualifications:Minimum of a B.S. degree in mechanical or aerospace engineering.Solid understanding of thermal physics fundamentals.10+ years of relevant proven experience in design, analysis, and test of spacecraft thermal systemsProficiency in thermal analysis, specifically in Thermal Desktop and Sinda/Fluint, including model validation and test correlationMust be a U.S. citizen or national and hold a US security clearance.Experience in design, analysis, and testing of spacecraft thermal systems.Preferred Qualifications:M.S. degree in mechanical or aerospace engineeringLead the design, drawing release, fabrication and/or procurement, and installation of Multi-Layer Insulation (MLI) blankets for LEO, GEO, and interplanetary spacecraft and spacecraft payloadsHands-on experience with spacecraft thermal hardware installation processesExperience solving a variety of thermal problems demonstrating breadth in analysis applicationProficiency in one or more programming languages (e.g., Python, C/C++,etc).Ability to perform trade studies relating to selection of material and subsystem hardware.Ability to perform hand calculations to screen concepts without detailed modeling and to sanity check finite element model results.Ability to develop vehicle-level thermal models using SINDA/FLUINT wit

Created: 2025-12-15