Propulsion Engineer II, Engine Systems

Propulsion Engineer II, Engine SystemsLong Beach, CARocket Lab is the end-to-end space company building rockets, spacecraft, and critical subsystems that keep the world connected, protected, expand humanity's reach to the Moon, Mars, and beyond. We move fast, build real hardware for meaningful missions, and make the impossible routine. Come shape the future with us.Neutron is a medium lift launch vehicle capable of delivering the mega constellations of tomorrow, high assurance payloads, and human spaceflight. As a highly reusable launch platform, Neutron will deliver a highly cost-effective and reliable launch solution leveraging Rocket Lab's proven execution history with the Electron program. If you're interested in joining a high performing team, pushing the boundaries with a clean sheet development of re-usable liquid launch vehicle, this is your opportunity!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 II:Bachelor's degree in mechanical engineering, aerospace engineering, or related field.2+ years of experience in rocket engine development, testing, or operations.Strong technical 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 areasLevel 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. Base salary is just one component of our total rewards package at Rocket Lab. Employees may also receive company equity and access to a robust benefits package including: top tier medical HMO, PPO & a 100% company-sponsored medical HSA plan option, dental and vision coverage, 3 weeks paid vacation and 5 days sick leave per year, 11 paid holidays per year, flexible spending and dependent care savings accounts, paid parental leave, disability insurance, life insurance, and access to a 401(k) retirement plan with company match. Other perks include: Discounted employee stock purchase program, subsidized EV charging stations, onsite gym, food and drinks, and other discounts. Eligibility for benefits may vary based on employment status, please check with your recruiter for a comprehensive list of the benefits available for this role. Benefit programs are subject to change at the company's discretion.Base Pay Range (CA Only)$100,800 - $151,200 USDWhat To ExpectWe're on a mission to unlock the potential of space to improve life on Earth, but that's not an easy task. It takes hard work, determination, relentless innovation, teamwork, grit, and an unwavering commitment to achieving what others often deem impossible. Our people out-think, out-work, and out-pace. We pride ourselves on having each other's backs, checking our egos at the door, and rolling up our sleeves on all tasks big and small. We thrive under pressure, work to tight deadlines, and our focus is always on how we can deliver, rather than dwelling on the challenges that stand in the way.