About Densix 

Densix is redefining what’s possible in power conversion. 

Spun out of the University of Oxford and backed by leading investors, we are commercialising patented, ultra-high power density converter technology. Our innovations unlock smaller, more efficient, and more flexible power systems across high-growth sectors including AI compute, electric vehicles, grid infrastructure, and renewable energy. 

We are transitioning from breakthrough research to first product—and building a world-class engineering team to make it happen. 

If you’re motivated by solving hard, real-world problems and want to see your designs move rapidly from concept to deployed systems, this is a rare opportunity to join at an early stage and shape both the technology and the company. 

The Role 

As a Power Electronics Engineer at Densix, you will play a central role in translating our core IP into robust, manufacturable products. 

This is a hands-on, multidisciplinary position suited to engineers who thrive in fast-paced environments —from architecture through to testing and customer deployment. 

You will work closely with a small, high-calibre team and have direct influence on technical decisions, product direction, and future IP development. 

What You’ll Do 

• Design, build, test and validate cutting-edge power conversion systems 
• Participate in major projects in electrical, mechanical, thermal, and manufacturing fields 
• Take ownership of subsystems and contribute to overall system architecture  
• Develop and execute rigorous test plans, including validation, reliability, and compliance (e.g. EMC, thermal, lifetime testing)  
• Collaborate with customers and partners to integrate Densix technology into real-world applications  
• Contribute to the generation and protection of intellectual property  
• Stay at the forefront of developments in power electronics and related technologies 

What We’re Looking For 

Essential 

• MEng (or equivalent) in Electrical Engineering, Electronics, or a related discipline  
• 2+ years of relevant industry experience 
• Demonstrable track record in technical design, simulation, and experimental validation in analogue and digital electronic systems and circuits 
• Proficiency at electronic design and PCB layout, including rapid prototyping and design iteration 
• A proactive, problem-solving mindset with a willingness to take ownership and learn quickly  

Desirable 

• Direct practical experience of designing, building, and testing power electronic circuits and systems 
• Experience of working on electrical systems operating above 600VDC 
• Microcontroller software experience applicable to power electronics control systems (e.g., high speed feedback systems written in bare-metal C at >10kHz loop frequency) 
• Mechanical design skills and related experience with mechanical CAD systems (Solidworks, Fusion360 etc.) 
• Exposure to compliance and certification processes (EMC, safety standards)  

Why Join Densix? 

• Own meaningful work early – your contributions will directly shape our first products and future roadmap  
• Cutting-edge technology – work with patented innovations pushing the limits of power density  
• Small, focused team – collaborate closely with experienced engineers and founders  
• Real-world impact – create products that enable more efficient power systems across global industries  
• Growth opportunity – develop quickly as the company scales