Imagine building your career in a world class manufacturing company, while living in Christchurch New Zealand, a gateway to mountains, oceans, and adventure. That's the opportunity on offer at HamiltonJet, a global leader in waterjet propulsion systems. Behind its international success lies a powerful manufacturing advantage: a fully integrated foundry operation spanning aluminium, aluminium bronze, and stainless steel.
This unique capability allows HamiltonJet to control every stage of production, ensuring exceptional quality and performance across its entire product range.
The Small Jet Aluminium Foundry specialises in complex, fine-section castings from 0.1 to 100 kg, using chemical bonded sand moulding and precision-controlled melting systems.
At the other end of the scale, the Large Jet Aluminium Foundry produces castings up to 1,500 kg and includes aluminium bronze capability for components requiring exceptional durability in harsh marine environments.
Precision reaches its peak in the Stainless-Steel Impeller Foundry, where investment casting processes, supported by 3D printing, lost foam, and wax pattern technologies, produce high-integrity components up to 1,050 kg.
Advanced casting techniques and rigorous finishing processes ensure optimal performance and reliability.
Across all foundries, HamiltonJet applies unified manufacturing standards, including certified primary ingot sourcing with full material traceability, controlled mould-making processes, structured melt management with logging and testing, and repeatable post-cast workflows.
Comprehensive quality assurance measures, such as tensile testing and dimensional inspection, ensure each component meets strict marine performance standards.
By keeping aluminium, aluminium bronze, and stainless steel casting in-house, HamiltonJet achieves strong design optimisation, production resilience, and metallurgical consistency.
This integrated approach allows the company to produce everything from fine section aluminium parts to heavy duty bronze castings and precision balanced impellers, ensuring every propulsion system begins with a casting engineered to the highest standards.
For Engineers, Tradespeople, or anyone looking to get into the foundry industry, this is a great opportunity to build a meaningful career with a company helping shape the future of marine propulsion.
If you're ready for a new challenge, and the chance to see a bit of the world while you're at it, this could be just what you've been looking for.Feel free to reach out to Kristan at