Senior / Principal Propulsion Engineer

2w2 weeks ago

Rocket Lab USA

US · Full-time · $130,000 – $190,000

About this role

Rocket Lab is an end-to-end space company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and more – all with the goal of opening access to space. The rockets and satellites we build and launch enable some of the most ambitious and vital space missions globally, supporting scientific exploration, Earth observation and missions to combat climate change, national security, and exciting new technology demonstrations.

As Senior/Principal Propulsion Engineer, you will play a critical role in the development, testing, and operation of the Archimedes Engine family, a cornerstone of the Neutron rocket program. You will take ownership of subsystems and engine operation, driving design, analysis, testing, and operational readiness.

You will execute testing campaigns, analyze data, improve existing evaluation capability and refine designs for reliability and vehicle operations. This role demands technical expertise, strong autonomy, and the ability to align teams and projects to achieve program goals.

Principal Engineers will additionally drive value to teams outside their group, influencing cross-functional efforts and contributing to the broader success of the Neutron program. This is your opportunity to help launch a new large rocket for the very first time.

Requirements

Bachelor’s degree in mechanical engineering, aerospace engineering, or related field.
5+ years of experience in rocket engine development, testing, or operations.
Strong technical understanding of fluid dynamics, thermodynamics, cryogenic systems, and rocket engine architecture.
Familiarity with engine P&IDs, fluid system routing, and hotfire data reviews.

Responsibilities

Design, analyze, test, fly, and refly next generation propulsion hardware ensuring operational readiness and flight success.
Develop and execute test plans, including qualification and acceptance testing, and conduct post-test data reviews to refine designs and processes.
Collaborate across engineering disciplines to optimize engine performance, reliability, and manufacturability.
Generate high-level plans and prioritize tasks across teams, resolving competing priorities and ensuring alignment with program goals.
Mentor and guide engineers, fostering technical growth and collaboration.
Work with manufacturing, testing and vehicle operation teams to support engine needs, operation, and resolve issues each part of the engine lifecycle.

Benefits

Opportunity to work on the development of a new large rocket, Neutron, from the ground up.
Collaborate with a world-class team of engineers and scientists in the aerospace industry.
Contribute to missions supporting scientific exploration, Earth observation, national security, and technology demonstrations.
Potential for career growth and advancement within a rapidly expanding space company.