Lunar Fluids & Thermal Systems Analysis Engineer

Lunar Fluids & Thermal Systems Analysis Engineer Blue Origin life insurance, parental leave, paid time off, paid holidays, 401(k) United States, Colorado, Longmont Apr 29, 2026 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! 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. As part of a hardworking team of specialists, technicians, and engineers, you will conduct thermal analysis to define the performance and operations for various spaceflight systems, define hardware requirement and resolve technical challenges. You will generate and run thermo-fluids models of cryogenic propellant in spacecraft, provide guidance on optimizing hardware configuration, mission conops and control logic, quantitatively evaluate alternative trade studies and provide recommendations and work with a cross functional team to advance the state of the art of in space cryogenic fluid management

Special Mentions:

Relocation provided Travel expected up to 15% of the time Interviews will include a technical assessment

Minimum Qualifications:

Minimum of BS degree in Mechanical or Aerospace Engineering Minimum of two years of relevant experience is required Strong understanding of thermal and fluid mechanics with relevant experience preferably in aerospace industry (We are looking for thermal engineers of all skill levels from beginner to advanced) Experience with one or more fluid or thermal modeling tools is required (e.g., SINDA/FLUINT, Thermal Desktop, Flow3D, CFD++, ANSYS Fluent, MATLAB/Simulink or other commercial codes). Work closely with other cross functional team as needed (e.g., systems engineers to develop and verify requirements, Design team to support sizing and trade studies, procurement to choose the best supplier)

Preferred Qualifications:

Experience with modeling propulsion/cryogenic fluids management (storage, transfer, phase change,...) Experience with Thermal Desktop, SINDA/FLUINT Experience with Computational Fluid Dynamics (CFD) Knowledge of other tools including MATLAB, Simulink, Amesim Successful candidates typically have relevant proven experience in design and analysis of aerospace thermal systems Advanced graduate degrees (Masters or PhD) Proficiency in one or more programming languages (e.g., MATLAB, Python, C/C++, FORTRAN) Active/passive Thermal/Pressure Control System/component design Compensation Range for: CA applicants is $121,023.00

• $169,432.20 CO applicants is $110,938.00
• $155,312.85 WA applicants is $121,023.00
• $169,432.

20 Other site ranges may differ Culture Statement Don't meet all desired requirements? Studies have shown that some people are less likely to apply to jobs unless they meet every single desired qualification. At Blue Origin, we are dedicated to building an authentic workplace, so if you're excited about this role but your past experience doesn't align perfectly with every desired qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles. Export Control Regulations Applicants for employment at Blue Origin must be a U.S. citizen or national, U.S. permanent resident (i.e. current Green Card holder), or lawfully admitted into the U.S.as a refugee or granted asylum. Background Check Required for all positions: Blue's Standard Background Check Required for

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Defense Biometric Identification System (DBIDS) background check if at any time the role requires one to be on a military installation Required for

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Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs. and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for certain

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Ability to obtain and maintain Merchant Mariner Credential, which includes pre-employment and random drug testing as well as DOT physical Benefits Benefits include: Medical, dental, vision, basic and supplemental life insurance, paid parental leave, short and long-term disability, 401(k) with a company match of up to 5%, and an Education Support Program.

Paid Time Off:

Up to four (4) weeks per year based on weekly scheduled hours, and up to 14 company-paid holidays. Dependent on role type and job level, employees may be eligible for benefits and bonuses based on the company's intent to reward individual contributions and enable them to share in the company's results, or other factors at the company's sole discretion. Bonus amounts and eligibility are not guaranteed and subject to change and cancellation. Please check with your recruiter for more details. Equal Employment Opportunity Blue Origin is proud to be an Equal Opportunity/Affirmative Action Employer and is committed to attracting, retaining, and developing a highly qualified and dedicated work force. Blue Origin hires and promotes people on the basis of their qualifications, performance, and abilities. We support the establishment and maintenance of a workplace that fosters trust, equality, and teamwork. We provide all qualified applicants for employment and employees with equal opportunities for hire, promotion, and other terms and conditions of employment, regardless of their race, color, religion, sex, sexual orientation, gender identity, national origin/ethnicity, age, physical or mental disability, genetic factors, military/veteran status, or any other status or characteristic protected by federal, state, and/or local law. Blue Origin will consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state, and local laws, including the Washington Fair Chance Act, the California Fair Chance Act, the Los Angeles Fair Chance in Hiring Ordinance, and other applicable laws. For more information on "Know Your Rights," please see here. Affirmative Action and Disability Accommodation Applicants wishing to receive information on Blue Origin's Affirmative Action Plans, or applicants requiring a reasonable accommodation in order to participate in the application and/or interview process, please contact us atEEOCompliance@blueorigin.com. Please note this is a publicly managed inbox. Please do not include any personal medical information in your request. California Applicant Privacy Notice If you are a California resident, please reference the CA Applicant Privacy Notice here.