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 diverse team of problem solvers as we add new chapters to the history of spaceflight! We are a diverse team of collaborators, doers, and problem- solvers who are relentlessly committed to a culture of safety. This position will directly impact the history of space exploration and will require your commitment and detailed attention towards safe and repeatable space flight. Join us in lowering the cost of access to space and enabling Blue Origin's vision of millions of people living and working in space to benefit Earth. This role is part of the Lunar Transportation business unit. To further Blue Origin's mission of having millions of people living and working in space, we are building the sustainable infrastructure for our transport of crew and cargo from Earth to the Lunar Surface. As part of a diverse and hardworking team of engineers, you will contribute to the definition and development of spacecraft thermal control systems. 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. You will work directly with NASA and our National Team Partners as part of the Human Landing System (HLS) Sustaining Lunar Development (SLD) program. You will play a key role in developing the Lunar Transportation system that will return humans to the Moon. We are looking for Engineers to be responsible for thermal components from conception, through internal or external development, testing, and integration with the vehicle. You will be part of the Thermal Hardware group for multiple generations of landers, which works closely with the Thermal Analysis group within the Lunar Thermal integrated product team. Inputs to your work will include subsystem specifications, mission environments, and design and construction standards. Outputs will include component specifications, test plan/execution/reports, occasional thermal analysis, short/long term development plans, and make/buy decisions. Contribute to a team of Thermal Engineers and Analysts simultaneously developing groundbreaking lunar landers. We are looking for someone to apply their technical expertise, leadership skills, and commitment to quality to positively impact safe human spaceflight. Passion for our mission and vision is required! Qualifications: Minimum of a B.S. degree in mechanical or aerospace engineering 5 years of relevant Thermal Engineering experience Solid understanding of thermal/fluid fundamentals Proficiency in application of fundamentals to inform thermal and structural design such as interface sizing, material selection, and design element definition. Understanding of aerospace hardware verification and validation process Experience with CAD software; preferably Creo with Windchill Experience with design for manufacturability and aerospace design standards Familiarity of structural design fundamentals related to spacecraft structures and thermal control hardware Demonstrated experience working in cross-functional teams to deliver results Ability to earn trust, maintain positive and professional relationships, and contribute to a culture of inclusion. Must be a U.S. citizen or national, U.S. permanent resident (current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Desired: M.S. or PhD degree in mechanical or aerospace engineering 8 years of relevant aerospace experience Experience in designing fluid routing systems and defining specifications for flexlines, hoses, and fittings and relevant standards.