Sr. Thermal & Fluids Engineer — Next-Gen Stage Two Development Verified today

Blue Origin · Seattle, WA · Propulsion · first seen 2026-09-03

About the Role

This role supports the development and operations of New Glenn, a heavy-lift orbital launch vehicle designed to carry people and payloads to low-Earth orbit, geostationary transfer orbit, cislunar, and beyond.

As part of a small team of engineers and analysts, you will support all aspects of thermal and fluid system design for next-generation stage two development. You will share in the team's impact on systems through their entire lifetime, from early conceptual design and configuration through flight operations and sustaining engineering.

The work is analysis-intensive, primarily supporting development and verification of stage two component and vehicle thermal and fluid environments and performance requirements. You will implement aerothermal, rocket plume heating, and natural environments during all phases of flight. You will own the documentation and maintenance of analysis inputs, models, and results in reports and databooks.

As the upper stage transitions from initial design, release, and qualification testing into the production and flight-test phase, you will support production issues, ongoing testing, and mission operations.

Responsibilities

  • Conduct thermal and fluids analysis to define performance and operations for upper-stage spaceflight systems, define hardware requirements, and resolve technical challenges
  • Implement aerothermal, rocket plume heating, and natural environments across all phases of flight
  • Generate and run thermal and fluids models to predict system performance across a wide range of environments
  • Evaluate bounding thermal conditions against material and design capabilities
  • Own the documentation and maintenance of analysis inputs, models, and results in reports and data books
  • Support development and verification of component and vehicle thermal and fluid environments and performance requirements
  • Support systems through their full lifecycle, from conceptual design and configuration through flight operations and sustaining engineering

Minimum Qualifications

  • B.S. degree in Mechanical or Aerospace Engineering
  • 5 or more years of experience in thermal or thermodynamic analysis
  • Experience with one or more fluid or thermal modeling tools (e.g., ANSYS Workbench, ANSYS Classic, SINDA/FLUINT, Thermal Desktop, etc.)
  • U.S. citizen or national, U.S. permanent resident (current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum

Desired Qualifications

  • 10 or more years of experience and an MS degree
  • Demonstrated expertise with Thermal Desktop, SINDA/FLUINT, FloCAD
  • Experience modeling launch vehicle systems
  • Experience with cryogenic systems
  • Knowledge of MATLAB

Compensation

Base pay range for Washington applicants: $145,188.00 to $203,263.20. Other site ranges may differ.

Benefits

  • Medical, dental, vision, 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 working at least 20 hours per week
  • Paid time off up to four weeks per year based on scheduled hours
  • Up to 14 company-paid holidays