Fluids Analyst II - Lunar Permanence

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.

Blue Origin is hiring a Fluids Analyst to design and optimize the Gas Subsystem for the Lunar Transfer Stage spacecraft. You'll own the complete lifecycle—from requirements and interface definition through conceptual design, detailed design, component development, assembly, verification testing, and operations. This is a high-impact role where your thermal/fluids expertise directly supports humanity's return to the Moon.

Responsibilities include but are not limited to:

• Build and maintain transient fluids simulation models of the gas subsystem using Thermal Desktop FloCAD and Sinda/Fluint

• Provide strategic guidance on hardware optimization, mission operations, and control logic

• Lead trade studies across Gas Subsystem and neighboring subsystems

• Define requirements and plan verification testing to validate hardware performance in relevant environments

• Support the complete lifecycle of the Transporter vehicle from initial definition through in-flight operations

• Drive design iteration through data-informed feedback and optimization

Minimum Qualifications:

• B.S. in Mechanical Engineering, Aerospace Engineering, or related field

• 3+ years of thermal/fluids analysis experience

• Proficiency in Thermal Desktop FloCAD and Sinda/Fluint with strong FORTRAN user-logic skills

• Deep understanding of Fluid Mechanics, Heat Transfer, and Thermodynamics

• Hands-on experience with first-order and Excel-level fluids calculations

Desired Qualifications:

• Advanced Engineering degree

• Prior spacecraft fluid systems experience

• CFD expertise (ANSYS Fluent, FLOW3D)

• Fluid network analysis tools (AFT Arrow/Fathom)

• Experience with cryogenic, two-phase, and gaseous fluid systems

• Hydrogen and oxygen systems background

• Process automation scripting skills (VBA, MATLAB, Python, FORTRAN)

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 Certain Job Profiles: Defense Biometric Identification System (DBIDS) background check if at any time the role requires one to be on a military installation

• Required for Certain Job Profiles: 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, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training.

• Required for certain Job Profiles: 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.

• Stock Options for all regular employees (working at least 20 hours/week)

• 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 at EEOCompliance@blueorigin.com. Please note this is a publicly managed inbox. Please do not include any personal medical information in your request.