Principal Fluids Engineer

BLUE ORIGIN

Principal Fluids Engineer at Blue Origin supporting New Glenn launch vehicle fluid systems development and operations. Collaborating on component and vehicle-level fluid models and thermal load analysis.

Posted 6/5/2026full-timeGreater Seattle Area • Colorado, Florida, Washington • 🇺🇸 United StatesLead💰 $190,458 - $266,641 per yearWebsite

About the role

Key responsibilities & impact

Supports the development and operations of New Glenn launch vehicle
Analysis intensive, supporting development and verification of component and vehicle-level fluid models
Develops fluid and thermal loads derived from CFD, first principles, literature, and/or experiments
Responsible for configuration development, detailed design, and verification activities
Owns documentation and maintenance of analysis inputs, models, and results in reports and data books.

Requirements

What you’ll need

Minimum of BS degree in Mechanical or Aerospace Engineering
15 or more years of experience in the fields of fluids or thermodynamic analysis
Demonstrated expertise with one or more fluid modeling tools is required: i.e. SINDA/FLUINT, Thermal Desktop
Knowledge of MATLAB or similar scripting tools
Experience analyzing booster and upper stage of rocket systems
Experience reviewing and critiquing models and results developed by junior engineers
Desired: 20 or more years of experience and an MS or PhD degree
Experience with FloCAD
Experience analyzing cryogenic fluid systems
Experience with commercial CFD for fluid systems
Knowledge in the use of 3D CAD tools (CREO is preferred).

Benefits

Comp & perks

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%
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.
Employees may be eligible for benefits and bonuses based on individual contributions and company results, or other factors at the company's sole discretion.

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

fluid modelingthermodynamic analysisCFDthermal loadsconfiguration developmentdetailed designverification activitiescryogenic fluid systemscommercial CFD3D CAD

Soft Skills

analysisdocumentationreviewing modelscritiquing resultsmentoring

Certifications

BS degree in Mechanical EngineeringBS degree in Aerospace EngineeringMS degreePhD degree