_{15th July, 2026}

Equal Opportunity Statement: We are an equal opportunity employer and are committed to creating an inclusive and diverse workplace. We believe that diversity strengthens our team and are dedicated to providing a work environment free from discrimination and harassment. 

Who We Are 
OpenStar Technologies is on a mission to repeat the feats of Māui and capture the power of the Sun. By mastering fusion - the process that powers the stars - we can generate safe, clean, carbon-free, base-load electricity in a way that is economically scalable to the challenge of mitigating climate disaster and giving birth to the next industrial revolution. Our team is made up of talented engineers and physicists, based in Wellington, New Zealand. 

About the Role 
Join the HTS Rectifiers team within OpenStar's Subsystems group to help model, optimise, and test the HTS switches and rectifier components that drive our HTS transformer rectifiers. You'll work on real hardware, from electromagnet and switch design through to thermal/electrical modelling and experimental verification. 

Key Responsibilities 
Switch & Rectifier Modelling 

• Model HTS switch behaviour against temperature, field, and current (Tc, Bc, Ic), including EJ power-law behaviour near critical current 
• Develop and extend thermal/electrical models (e.g. in Simulink) to capture temperature-dependent switching behaviour 
• Support modelling of transformer rectifier topologies (e.g. H-bridge configurations) 

Electromagnet Design & Optimisation 

• Use magnetostatic FEA tools (e.g. FEMM) and 3D CAD to optimise switch electromagnet geometry, coil turns, and wire selection against performance and efficiency targets 
• Analyse design trade-offs (losses, time constant, flux density) and produce recommendations backed by your analysis 

Experimental Verification 

• Set up and run experimental verification rigs, measuring switch voltage/current behaviour under varying temperature and field 
• Build and test hardware prototypes, including switch electromagnets and, where relevant, superconducting components 
• Collect and analyse test data against model predictions and iterate on designs accordingly 

Key Relationships 

• HTS Rectifiers  
• Power electronics engineers 
• Magnet Engineering team 

What We're Looking For  

• Strong interest in superconductivity, electromagnetics, or power electronics 
• Ability to work through and solve highly multidisciplinary engineering problems. 
• Ability to take initiative, work independently and as part of a team. 
• Great team member with clear communication and collaboration skills. 
• Innate desire to learn, innovate, and critique ideas including one's own. 
• Currently enrolled in a Bachelor's degree (or higher) in electrical, mechanical, or a related engineering/physics discipline 

Join Us 
This opportunity boils down to the chance to work on something truly meaningful. The scariest thing about the climate crisis today is that, for all of our bluster and protest, there are very few of us who actually have a chance to do meaningful work solving this problem. Carbon-free energy is an absolute necessity if we want to be able to recognise the world that future generations inherit. Please join us in making this a reality. 

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