Lead Principal Systems Engineer - Zero Boil Off

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!

This role is part of the Lunar Permanence business unit, which develops Blue Origin’s Blue Moon landers and related products. To further Blue Origin's mission of millions of people living and working in space for the benefit of Earth, we are building sustainable infrastructure for our transport of crew and cargo from Earth to the lunar surface. We are a 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. We are actively seeking a Lead Principal Systems Engineer to play a pivotal role in our ambitious Zero Boil Off (ZBO) cryocooler program, focused on pushing the boundaries of aerospace technology.

As part of a passionate, mission driven, and accomplished team of experts, you will collaborate with cross-functional teams to design, qualify, and integrate ZBO’s cryocooler technology onto launch vehicles and/or payloads. The ideal candidate brings 10+ years designing, analyzing, qualifying, and launching flight hardware, with progression into lead or principal systems engineering roles, and has served as the technical authority for a complex flight system from concept through qualification, with deep expertise in thermodynamic cycles and cryogenic or thermal-fluid systems.

As the Principal Systems Engineer for ZBO (based in Kent, WA), you will be the single-threaded technical leader for the cryocooler system, owning the system architecture and technical baseline across all products (turbo machinery, heat exchangers, avionics, software, and the associated fluid and electrical interfaces) and leading all systems engineering activities for the team. There is no "standard day" in this role: on any given day you may run a MATLAB cycle model to close a cooling-versus-input-power trade, review a P& avionics interface with a design engineer, negotiate mass, power, and envelope allocations with a vehicle team, chair a design review, or present a risk-based recommendation to executive leadership.

We're looking for someone technically ambitious, with a proven record of building processes and maturing new technology where your technical judgment is the constant that ties it all together.

Relocation provided This position is based in Kent, WA Travel expected up to 25% of the time to support customer coordination, testing, and launch activities Interviews will include a technical assessment

Drive the end-to-end thermal cycle systems requirement for flight — architecture, technical baseline, performance, and margins across all cryocooler products. Must be able to deep-dive and understand thermodynamic cycles such as Reverse Brayton, Joule-Thomson, and similar Serve as technical authority during flight hardware design, with signature authority for system-level changes, risk dispositions, nonconformances, and failure review boards Act as the primary technical interface to vehicle customers: elicit, negotiate, and document requirements and interfaces…