Sr. Mechanical/Fluid Engineer

Blue Origin LLC; United States; On-site; USD 160,000 - 210,000; Full time

Benefits offered by this job

401(k) match

Stock options

Paid time off

Education support program

Job summary

Blue Origin is seeking a senior Mechanical/Fluid Engineer to lead the design of high‑pressure gas and cryogenic fluid systems, and to oversee testing facilities and startup activities. You will work within the Blue Origin Operations group, collaborating across manufacturing, supply chain, safety, and mission assurance to deliver safe, high‑quality test stands for rocket engines and spaceflight hardware.

The role requires strong leadership, extensive fluid dynamics expertise, and a track record

Qualifications

• BS in Mechanical, Chemical, Aerospace Engineering or related field.
• 10+ years of industry experience.
• Expertise in fluid analysis and fluid system architecture.
• Knowledge of cryogenic/propellant fluid components and piping fabrication.
• ASME B31.3 and BPVC codes.
• Experience with transient modelling software and related tools.

Responsibilities

• Lead design of high‑pressure gas and cryogenic fluid systems.
• Perform transient analysis of fluid systems.
• Conduct HAZOPs for fluid systems.
• Direct architecture decisions for fluid system design and implementation.
• Manage suppliers for cost, schedule, and technical requirements.
• Provide remote and on‑site support during facilities fabrication and startup.
• Develop project plans with budget, schedule, and WBS.
• Coordinate with customers to refine scope and requirements.
• Mentor engineers and perform peer reviews.

Skills

Fluid analysis

HAZOP

Leadership

Peer reviews

Education

BS in Mechanical/Chemical/Aerospace

Tools

Thermal Desktop

Simulink

AFT Arrow/Fathom

AutoCAD/CAESAR

Job description

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 Blue Origin Operations, which is comprised of Integrated Supply Chain, Test Operations, Safety, Quality, and Mission Assurance. This includes Manufacturing and Supply Chain support across all Blue Origin facilities.

As part of a dynamic and dedicated team of Mechanical and Fluid Engineers, you will play a crucial role in developing systems to test rocket engines and space flight vehicles. You will contribute significantly to all aspects of rocket engine test stand design. Your responsibilities will include designing and analyzing fluid systems for test facilities, coordinating with suppliers, and overseeing the construction, installation, and commissioning of new test facilities. Occasional travel to other sites (up to 25%) may be required to support operations. 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!

Responsibilities

• Lead and own the design of high‑pressure gas and cryogenic fluid systems.
• Perform transient analysis of compressible and incompressible fluid systems.
• Conduct Process Hazard Analysis activities for fluid systems (HAZOP).
• Lead technical direction and architecture decisions for fluid system design and implementation.
• Manage suppliers, coordinating cost, schedule, and technical design requirements.
• Provide remote and on‑site support during the fabrication, installation, and start‑up of new facilities or upgrades.
• Support development of project plans including budget, schedule, and work breakdown.
• Coordinate with customers to refine project scope and requirements.
• Mentor newer engineers and perform peer reviews as appropriate based on experience level.
• Occasional travel to other sites (up to 25%) may be required to support operations.

Minimum Qualifications

• Bachelors Degree in Mechanical, Chemical, Aerospace Engineering, or related field.
• 10+ years of industry experience.
• Demonstrated expertise in fluid analysis, including process component selection and fluid system architecture.
• In‑depth knowledge of fluid system components (e.g., valves, regulators, and pumps for cryogenics, propellants, and other fluids).
• Practical knowledge of standard installation and fabrication methods for piping systems (pipe stock, fittings, connections, fasteners, welding, etc.).
• Practical knowledge of ASME B31.3 and ASME BPVC codes.
• Expertise with transient modelling software (Thermal Desktop, Simulink, Etc.).
• Experience with AFT Arrow/Fathom or equivalent software packages.
• Ability to earn trust, maintain positive and professional relationships, and contribute to a culture of inclusion.

Preferred Qualifications

• Advanced Engineering degree.
• Experience with Bentley AutoPipe / CAESAR.
• Experience with AutoCAD or AutoCAD Plant/ID.
• Experience with ProEngineer/Creo, Windchill, and ProPiping.
• Experience operating test facilities.

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

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

• 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.

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 workforce. 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.

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 [e-mail]. Please note this is a publicly managed inbox. Please do not include any personal medical information in your request.

Our Mission

We’re committed to building the road to space so our children can build the future. We are a mission-driven company focused on ideas and innovation, and encourage fresh perspectives from bold voices. At Blue, our team is building the future as their unique selves.

Thank you for your interest in working at Blue Origin! Blue Origin was founded with a vision to enable a future where millions of people are living and working in space to benefit Earth.