Senior Thermal & Fluids Engineer for Space Systems

Blue Origin LLC; United States; On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical, dental, vision

Stock Options

Paid Time Off

Parental leave

Job summary

Blue Origin LLC is seeking an experienced engineer to support thermal and fluids analysis for the NewGlenn upper stage. You will define hardware requirements, run models, and document results to guide design, testing, and flight operations.

The role focuses on aerothermal heating, natural environments, and propulsion system interfaces, with responsibilities spanning from concept through sustaining engineering in a safety‑driven, collaborative culture.

Qualifications

• Minimum of a B.S. degree in Mechanical or Aerospace Engineering.
• 5+ 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).
• U.S. citizen or eligible to work in the U.S.

Responsibilities

• Conduct thermal and fluids analysis to define performance and operations for upper‑stage spaceflight systems.
• Implement aerothermal, rocket plume heating, and natural environments across all phases of flight.
• Generate and run thermal/fluids models to predict system performance across environments.
• Evaluate bounding thermal conditions against material and design capabilities.
• Own 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 the systems through their full lifecycle, from conceptual design to flight operations.

Skills

Thermal analysis

Aerothermal analysis

Fluids analysis

Education

B.S. in Mechanical or Aerospace Engineering

Tools

ANSYS Workbench

ANSYS Classic

SINDA/FLUINT

Thermal Desktop

Job description

Blue Origin LLC is seeking an experienced engineer to support thermal and fluids analysis for the NewGlenn upper stage. You will define hardware requirements, run models, and document results to guide design, testing, and flight operations.

The role focuses on aerothermal heating, natural environments, and propulsion system interfaces, with responsibilities spanning from concept through sustaining engineering in a safety‑driven, collaborative culture.