Fluid Systems Engineer II

NEUTRON

Neutron is a medium lift launch vehicle capable of delivering 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.

FLUID SYSTEMS ENGINEER II

A Fluid Systems Engineer II, Neutron leads the design, build, and test of their fluid systems across the Neutron launch vehicle. You will collaborate with and provide guidance to a team of engineers in the Fluid Systems department to turn vehicle-level requirements into a fluid network that enables Neutron to operate with aircraft‑like reusability and reliability.

• Perform trade studies and sizing – using hand‑calcs, analytical models or test data – to define key elements of system architecture
• Provide guidance & mentorship to teammates on and beyond the fluids team to inform fluid system design, test & operations best practices
• Lead key fluid system design, manufacturing and test reviews
• Coordinate with component design, GSE, propulsion, GNC and other interrelated teams to solve multidisciplinary issues
• Create and maintain analytical models that characterize and predict system behavior under all relevant conditions
• Champion efforts to create and maintain piping and instrumentation diagrams, system CAD, production drawings, and system test and operations procedures
• Perform planning, analysis, and troubleshooting of system performance during real‑time operations and post‑test data reviews
• Project management including development schedules, vendor management, budgeting, etc.
• Create tools to enhance the team’s analysis capabilities, streamline workflow and optimize launch operations

• Bachelor’s degree in Mechanical Engineering or relevant engineering discipline
• 2+ years of experience designing, operating, troubleshooting fluid systems
• Strong engineering fundamentals in fluid dynamics and thermodynamics
• Solid understanding of fluid components such as valves, pressure vessels, flex elements & fittings
• Working knowledge of manufacturing, fabrication, integration processes & quality control relevant to fluid components (valves, flex hoses, tubing, bellows, etc.)

• 8+ years experience in a fast‑paced aerospace environment where you have completed difficult projects while collaborating effectively with other key groups
• Ability to earn trust, maintain positive & professional relationships, & contribute to a culture of inclusion
• Experience working with a distributed team across the globe
• Advanced degree in a fluid mechanics‑heavy field
• Experience with oxygen & methane systems
• Experience using fluids analysis tools such as REFPROP and GFSSP
• Experience using Siemens NX
• Experience using Python
• Proven ability to practically apply engineering fundamentals to solve real, complex problems
• Demonstrated ability to rally a team to make & execute good decisions in a fast‑paced environment with information available

• Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception, and the ability to focus.
• Regularly required to sit, use hands and fingers, operate computer keyboard and controls, and communicate verbally and in writing.
• Must be physically able to commute to buildings
• Occasional exposure to dust, fumes and moderate levels of noise.

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