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Senior Propulsion Engineer II

Rocket Lab - Long Beach, CA, United States - In-office - posted 2026-10-08

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Salary: USD 132,000 - 220,000 / annual

Rocket Lab is seeking a Senior Propulsion Engineer II to play a critical role in the development, testing, and operation of the Archimedes Engine family for the Neutron rocket program. This is a hands-on technical role focused on subsystem ownership and engine operation across the full lifecycle. Key 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 throughout the engine lifecycle The role demands technical expertise, strong autonomy, and the ability to align teams and projects to achieve program goals. You will drive value to teams outside your group, influencing cross-functional efforts and contributing to the broader success of the Neutron program. Requirements: - Bachelor's degree in mechanical engineering, aerospace engineering, or related field - 8+ 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 Nice to Have: - Advanced degree in a fluid mechanics-heavy field - Experience with ox-rich staged combustion systems and Methyl/LOX propellants - Background in failure analysis, combustion dynamics, turbopump mechanics, and hydraulics - Familiarity with reusable rocket engine systems and test/launch facility operations - Experience with best practices for design, qualification, and production Note: 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. ITAR compliance required: must be a U.S. citizen, lawful permanent resident, or eligible to obtain required authorizations from U.S. Department of State/Commerce.

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