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Junior Development Engineer - Neutron

Rocket Lab
Auckland, NZ Full Time Negotiable Sep 15, 2026

About the Job

While other companies talk about it, we do it!

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 N...

Development Engineers deliver across a broad set of vehicle domains including structural (i.e. Propellant tanks, interstages, fairings), mechanical (i.e. stage separation, landing, aerodynamic control), fluid (i.e. pressurant, propellant management, ignition, HVAC), and thermal (i.e. thermal protection) systems.

Key Responsibilities

Produce & rapidly iterate conceptual designs in CAD for aspects of primary and secondary metallic and composite structures across the Neutron launch vehicle. 
Own design aspects of elements including composite inserts, laminates, joint details, metallic interfaces, and secondary structural elements, working closely with analysts to ensure designs are appropriately sized and structural & thermal requirements are met.
Support with creating drawing packages & technical reports, working directly with the production team to ensure design for manufacture is maintained throughout the process.
Produce test jigs / fixtures to aid with fabrication, assembly, and development testing of components & assemblies.
Proactively identify and solve technical challenges to allow projects to proceed at pace.
Engage with more experienced engineers across the team for ongoing mentorship and coaching, for both technical and behavioral skills.

Required Skills & Abilities

Aerospace, mechanical or mechatronic engineering degree or equivalent qualification 
Experience from previous employment that meets engineering experience title and skills
Experience with CAD software such as NX (preferred), Solidworks, CATIA
The ability to work under pressure and to tight deadlines
Excellent communication skills and the ability to work well within a team environment
Sound analytical skills  
Have tenacity, a can-do attitude, and the ability to think quickly and make accurate judgements 
Strong understanding of composites engineering fundamentals (mechanics of materials, classical lamination theory, material property characterization, design best practices, analysis methods, and manufacturing processes)
Experience in one of the following domain areas:
Cryogenic systems
Pressurized systems 
Mechanical moving assemblies 
Fluid Systems
Hands-on composites manufacturing experience  
Hands-on metallic fabrication experience 

Apply now

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