Fluid Component Engineer II

rocketlab

Long Beach, CA · Long Beach · United States

Posted Aug 13, 2026

Other
On-site
2244 Neutron - Propulsion

Apply on company site

Job description

ABOUT ROCKET LAB

Rocket 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 ROCKET

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.

FLUID COMPONENT ENGINEER II

The Fluid Component Engineer II plays a key role in the design, build and test of fluid components across the Neutron launch vehicle, including valves, actuators and regulators. You will collaborate with an amazing team of engineers in the Fluid Systems department to turn vehicle-level requirements into a family of fluid components that enable Neutron to operate with aircraft-like reusability and reliability.

WHAT YOU’LL GET TO DO

Own fluid component designs from concept through launch
Create and maintain analytical models to size new components from first principles and predict sealing, force balance, structural and timing behavior
Create and maintain component product definition through CAD models, technical drawings, and test procedures
Lead key component design, manufacturing and test reviews
Manage vendor and internal schedules during design, build and test sprints.
Build and test prototype components hands-on, collaborating with machinists, build technicians, manufacturing engineers, and test engineers 
Lead test campaigns to qualify components for flight
Conduct root cause failure investigations of hardware, and implement design fixes to achieve reliability 
Update existing component designs to address critical failure modes while reducing cost and mass and increasing build rate  .
Review data from engine and vehicle test operations to validate component performance and diagnose anomalies

YOU’LL BRING THESE QUALIFICATIONS

Bachelor’s degree in mechanical engineering or aerospace engineering
2+ years of experience with mechanical design and assembly, CAD, Finite Element Analysis (FEA), 2D drawings, geometric dimensioning and tolerancing (GD&T)
Strong first-principles engineering knowledge to establish and challenge requirements and develop optimized designs
Knowledge of metal and polymer material properties, fabrication, fastening, assembly and testing methods
Strong engineering fundamentals in structural analysis, fluid dynamics, thermodynamics and electromechanical systems
Demonstrated ability to bring definition to complex design problems in a fast-paced environment with information available
Hands-on experience with prototyping, mechanical assembly and pressure testing

THESE QUALIFICATIONS WOULD BE NICE TO HAVE

5+ years experience of aerospace valve specific design, build and test
Experience with cryogenic oxygen & methane components and combustion devices
Experience using fluids analysis tools such as REFPROP and GFSSP
Experience using Siemens NX
Experience using Python
Experience with precision CNC machining (mill and lathe) and CAM

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

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.

Base Pay Range (CA Only)

$110,800—$138,600 USD

WHAT TO EXPECT

We’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.

Important information:

FOR CANDIDATES SEEKING TO WORK IN US OFFICES ONLY:

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. Learn more about ITAR here.

Rocket Lab provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment at Rocket Lab, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

Applicants requiring a reasonable accommodation for the application/interview process for a job in the United States should contact Giulia Johnson at g.biow@rocketlabusa.com.This dedicated resource is intended solely to assist job seekers with disabilities whose disability prevents them from being able to apply/interview. Only messages left for this purpose will be considered. A response to your request may take up to two business days.

FOR CANDIDATES SEEKING TO WORK IN NEW ZEALAND OFFICES ONLY:

For security reasons, background checks will be undertaken prior to any employment offers being made to an applicant. These checks will include nationality checks as it is a requirement of this position that you be eligible to access equipment and data regulated by the United States' International Traffic in Arms Regulations.

Under these Regulations, you may be ineligible for this role if you do not hold citizenship of Australia, Japan, New Zealand, Switzerland, the European Union, or a country that is part of NATO, or if you hold ineligible dual citizenship or nationality. For more information on these Regulations, click here ITAR Regulations.