Propulsion Engineer I - Engine Systems

Rocketlab · Long Beach, CA · Engineering

Posted 2026-09-05

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NEUTRON

Rocket Lab’s Neutron team is responsible for bringing our new large rocket Neutron and its launch and test sites to life. From designing and testing Neutron’s structures and components, to firing up its new Archimedes engines, to setting up Neutron’s launch pads and test sites across the United States, joining the Neutron team is your opportunity to help launch a new large rocket for the very first time.

PROPULSION ENGINEER I, ENGINE SYSTEMS

As an Engine Systems 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. This highly technical role involves ownership of engine subsystems, test campaigns, data analysis, and refining designs for reliability and vehicle operations, while driving system architecture trades, managing interfaces, and optimizing requirements for the vehicle.

Success requires strong autonomy, technical expertise, curiosity, attention to detail, and the ability to organize complex systems into actionable plans while collaborating across teams. You will also support engine analysis, simulation, testing, and tool development, bringing deep technical acumen to solve challenging problems. As a self-starter capable of leading projects with minimal oversight, you will have the opportunity to make a significant impact in a fast-growing startup environment that fosters growth and innovation.

WHAT YOU’LL GET TO DO:

Design, analyze, test, fly, and refly next generation propulsion hardware ensuring operational readiness and flight success.

Develop clear requirements and deliver validated designs and hardware that meet program milestones and flight requirements.

Execute engine test plans, including performance validation and reliability testing, and conduct post-test data reviews to distill learnings and adjust test planning.

Collaborate with cross-functional teams to ensure robust integration, testing, and problem solving.

Support flight operations, including engine acceptance and post-flight analysis.

YOU’LL BRING THESE QUALIFICATIONS AS PROPULSION ENGINEER I:

Bachelor’s degree in mechanical engineering, aerospace engineering, or related field.

Strong fundamental understanding of fluid dynamics, thermodynamics, and cryogenic systems.

Fundamental understanding of mechanical design principles.

THESE QUALIFICATIONS WOULD BE NICE TO HAVE:

Advanced degree in a fluid mechanics-heavy field.

Proven ability to conduct hotfire data reviews, identify blockers for testing, and ensure operational safety of engine systems.

Experience with staged combustion rocket engines and Methyl/LOX propellant systems.

Background in failure analysis, combustion dynamics, turbopump mechanics, and/ or fluid systems analysis.

Familiarity with reusable rocket engine systems and/or test/launch facility operations.

This position may require prolonged periods of sitting, standing, walking, computer work, and occasional exposure to moderate levels of noise, dust, and fumes in production areas

Anticipated annual equity grant value is designed around function, level, experience, and other factors; realized value depends on vesting and stock-price performance.

Join one of the world's fastest-growing space companies and own a piece of it. In addition to competitive base pay, you'll receive company stock as part of your total compensation package, giving you a direct stake in our success. As we expand to new launch sites, groundbreaking missions, and global markets, your ownership has the opportunity to grow alongside the company.

Our comprehensive benefits package includes our industry-leading Employee Stock Purchase Program (with a 15% discount on company stock), top-tier medical plans (HMO, PPO, and a zero cost HDHP option with a significant HSA company contribution), dental and vision coverage, paid vacation and sick time, 11 paid holidays, flexible spending and dependent care accounts, paid parental leave, disability and life insurance, and a 401(k) retirement plan with company match.

Additional perks include subsidized EV charging, onsite fitness centers (where available), discounted gym memberships, complimentary snacks and beverages, 50% employee discount on our popular merch store, and a variety of other employee discounts.

Level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.

Total Compensation (base and equity)

$89,350—$135,625 USD

Base Salary

$82,400—$123,600 USD

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