Development Engineer
Posted 7 Oct 2026
Advertised as “Development Engineer - Neutron”
BranchFactor Summary
The original posting with the fluff stripped out
- Level
- II
- Expected experience
- 3–5 yrs
- Management level
- People management
No salary listed for this role.
Field of studyAerospace Engineering, Mechanical Engineering, Mechatronics Engineering (or related)
Study levelBachelor's
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.
While other companies talk about it, we do it!
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.
DEVELOPMENT ENGINEER
Development Engineers deliver across a broad set of vehicle domains including structural (propellant tanks, interstages, fairings), mechanical (stage separation, aerodynamic control), fluid (pressurant, propellant management, ignition, HVAC), and thermal systems. The fluids‑focused Development Engineer II specialization owns the design, build, and testing of fluid systems across the Neutron launch vehicle. This includes all plumbing and hardware between the tanks and engines, translating vehicle‑level requirements into fluid networks that deliver aircraft‑like reusability and reliability. Engineers model system behaviour, size and select components, integrate with propulsion and vehicle systems, and iterate based on data from component, system, and vehicle‑level testing.
This role will work directly with analysis and manufacturing engineers to produce concepts, detailed designs, and drawing packages for metallic and composites components & assemblies and to perform development & qualification tests, refine designs, and ensure Neutron’s materials, components, and assemblies meet their functional and performance requirements.
We are currently looking for candidates with experience in the following areas:
- Composites
- Moving Mechanical Assemblies
- Metallic Structures
- Fluid Routing
- Materials Engineering
WHAT YOU'LL GET TO DO:
- Produce & rapidly iterate conceptual designs in CAD;
- Produce detailed design elements including composite inserts, laminates, joint details, metallic interfaces, and secondary structural elements;
- Prepare drawing packages & laminate books, ensuring manufacturability is considered throughout the design process;