Senior Thruster Propulsion Engineer

Blue Origin LLC; Seattle (WA); On-site; USD 170,000 - 237,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) with company match

Stock options

Paid time off

Job summary

Blue Origin LLC is actively seeking a Principal Propulsion Engineer to join the Blue Thrusters team in Seattle, WA. This role focuses on design, analysis, and testing of thruster combustion devices, with a path from concept to flight qualification.

The candidate should bring 10+ years of liquid rocket engine or thruster development experience, hands-on injector/chamber work, and strong collaboration across disciplines to deliver reliable propulsion hardware.

Qualifications

• 10+ years of liquid rocket engine or thruster development.
• Hands-on injector and chamber design with performance, combustion stability, and thermal analysis.
• Experience planning, conducting, and analyzing hot-fire testing of propulsion hardware.
• Solid understanding of propellant valves and their impact on ignition, start and shutdown transients.

Responsibilities

• Design, analyze, and develop thruster combustion devices, including injectors and chambers, with focus on performance, stability, and thermal behavior.
• Contribute to thruster-level design integrating combustion devices, valves, feed interfaces, and drive electronics.
• Plan and execute hot-fire campaigns; instrument, run tests, and review data to improve designs.
• Mentor engineers on injector and chamber design, analysis, and data review; collaborate across teams to resolve integration issues.

Skills

Propulsion design

Combustion analysis

Hot-fire testing

Thermal analysis

Education

B.S. in Aerospace Engineering

Tools

ROCCID

Python

Creo

NASA CEA

Job description

Blue Origin LLC is actively seeking a Principal Propulsion Engineer to join the Blue Thrusters team in Seattle, WA. This role focuses on design, analysis, and testing of thruster combustion devices, with a path from concept to flight qualification.

The candidate should bring 10+ years of liquid rocket engine or thruster development experience, hands-on injector/chamber work, and strong collaboration across disciplines to deliver reliable propulsion hardware.