Principal Fluids Engineer Verified today

Blue Origin · 3 Locations · Propulsion · first seen 2026-10-30

Principal Fluids Engineer

Support development and operations of New Glenn, a single-configuration heavy-lift orbital launch vehicle capable of carrying people and payloads to low-Earth orbit, geostationary transfer orbit, cislunar, and beyond. Its first stage is fully reusable and human-capable.

Your Role

As part of a small, accomplished team, you will support all aspects of fluid systems design for the New Glenn launch vehicle. Your work spans early conceptual design and configuration through flight operations and sustaining engineering.

Your responsibilities include:

  • Analysis-intensive support for development and verification of component and vehicle-level fluid models
  • Development of fluid and thermal loads derived from CFD, first principles, literature, and experiment
  • Configuration development, detailed design, and verification activities
  • Documentation and maintenance of analysis inputs, models, and results in reports and data books
  • Review and critique of models and results developed by junior engineers

Minimum Qualifications

  • BS degree in Mechanical or Aerospace Engineering
  • 15 or more years of experience in fluids or thermodynamic analysis
  • Demonstrated expertise with one or more fluid modeling tools: 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

Preferred Qualifications

  • 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 of 3D CAD tools (CREO preferred)

Compensation

Base pay range varies by location:

  • Colorado applicants: $160,618.00 to $224,864.85
  • Washington applicants: $169,624.00 to $237,473.25
  • Other site ranges may differ

Benefits

  • Medical, dental, vision insurance
  • Basic and supplemental life insurance
  • Paid parental leave
  • Short and long-term disability
  • 401(k) with company match up to 5%
  • Education Support Program
  • Stock options for all regular employees (20+ hours per week)
  • Up to four weeks paid time off per year based on scheduled hours
  • Up to 14 company-paid holidays
  • Performance-based bonuses and benefits dependent on role and job level

Requirements

Applicants must be a U.S. citizen or national, U.S. permanent resident (Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Standard background check required for all positions.

Applications accepted on an ongoing basis until requisition is closed.