M&P Engineer II

Materials And Processes Engineer II

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 Engineers deliver across a broad set of vehicle domains, including structural, mechanical, fluid, and thermal systems. The Materials & Processes (M&P) Development Engineer II role focuses on the development, characterization, and qualification of materials and manufacturing processes for the Neutron launch vehicle, supporting both metallic and composite applications.

This role will work closely with design, analysis, and manufacturing engineers to select materials, develop and optimize processes, and ensure robust, high-performance solutions for vehicle structures and systems. The M&P Development Engineer II will be responsible for supporting material selection, process development, materials testing & qualification, and continuous improvement initiatives across the Neutron program.

What You'll Get To Do:

• Design elements including thermal protection systems, composites, metallic interfaces, and secondary structural elements, working closely with analysts to ensure designs are appropriately sized and structural & thermal requirements are met
• Develop and qualify materials and processes for primary and secondary structures, including metallics, composites, adhesives, and coatings
• Support design teams with material selection and process recommendations to meet structural, thermal, and environmental requirements
• Conduct material characterization, process validation, and operational oversight
• Prepare and maintain technical documentation, including material/process specifications, test reports, and procedures
• Collaborate with suppliers and internal teams to manage, develop, and improve specifications and standards
• Proactively identify and solve technical challenges to enable rapid development and production
• Mentor and technically assist junior engineers
• Ideal candidates will thrive in ambiguity and are excited to work in a small, high-performing team focused on continued learning and growth. Success in this position will be measured by your technical expertise, ability to lead projects independently, and your ability to collaborate across teams to deliver results

You'll Bring These Qualifications:

• Bachelor's degree in Materials Science, Metallurgy, Mechanical Engineering, Chemical Engineering, or equivalent qualification
• 2+ years' experience in materials and processes engineering, preferably in aerospace or high-reliability industries
• Experience with material characterization techniques (e.g., mechanical testing, microscopy, NDT)
• Demonstrated capability in the implementation of materials and process qualification activities
• 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 and the ability to see the big picture and making connections and appropriate decisions
• Have tenacity, a can-do attitude, and the ability to think quickly and make accurate judgements

These Qualifications Would Be Nice To Have:

• Strong understanding of composites engineering fundamentals (mechanics of materials, classical lamination theory, material property characterization, design best practices, analysis methods, and manufacturing processes)
• Knowledgeable in modelling and structural analysis
• Experience in one of the following domain areas:
  • Cryogenic Systems
  • Thermal Protection Systems
  • Pressurized Systems
  • Mechanical Moving Assemblies
  • Fluid Systems
  • Instrumentation and Controls
• Hands-on composites manufacturing experience