Principal Power Electronics Engineer

Ampere Recruitment; Greater London; On-site; GBP 90,000 - 135,000; Full time

Job summary

Ampere Recruitment is partnering with a well-funded start-up developing next-generation power electronics for grid-connected applications. They seek a Principal Power Electronics Engineer to own hardware development end-to-end, shaping architecture and direction of their core technology.

You will lead architecture, design, and validation of high-voltage, high-power converters; mentor teams; and contribute to customer-facing material.

Qualifications

• End-to-end product development experience from concept to commercialisation.
• Experience designing high-voltage, high-power converters with CHB, LLC, DAB, MMC topologies.
• Hands-on lab testing with oscilloscopes and power analysers; strong SPICE/MATLAB skills.
• Willing to travel nationally and internationally; production environment familiarity.

Responsibilities

• Lead architecture, design, and development of power conversion systems (AC-DC, DC-DC, AC-AC).
• Own system-level validation: test planning, verification, certification, root-cause analysis, and lab bring-up.
• Act as Technical Lead—define system architecture and trade-offs; drive topology decisions and lead design reviews.
• Maintain engineering documentation and contribute to technical presentations and customer-facing material.

Skills

Technical leadership

Cross-team communication

Lab testing

Education

Degree in Electrical & Electronic Engineering

Tools

SPICE

MATLAB/Simulink

Altium

Job description

Ampere Recruitment is partnering with a well-funded start-up developing next-generation power electronics for grid-connected applications. They're looking for a Principal Power Electronics Engineer to own hardware development end-to-end, shaping the architecture and direction of their core technology.

What you will do

• Lead architecture, design, and development of power conversion systems (AC-DC, DC-DC, AC-AC), including high-frequency, high-power topologies, mixed-signal circuits, PCB layout, and EMI/EMC compliance.
• Own system-level validation: test planning, verification, certification, root-cause analysis, and lab bring-up.
• Act as Technical Lead — define system architecture and technology trade-offs, drive decisions across topologies, control strategies and magnetics, and lead design reviews and mentoring.
• Maintain engineering documentation and contribute to technical presentations and customer-facing material.

What you will need

• Degree in Electrical & Electronic Engineering or equivalent, with end-to-end product development experience from concept to commercialisation.
• Strong track record designing high-voltage, high-power converters, with deep knowledge of topologies such as CHB, LLC, DAB, MMC in grid-connected systems.
• Proficiency in SPICE, MATLAB/Simulink, and Altium (or equivalent), plus hands‑on lab testing with oscilloscopes, power analysers, and grid simulators.
• Experience designing for manufacturability, reliability, and compliance in production.li>
• Demonstrated technical leadership and strong cross‑team communication; willing to travel nationally and internationally.

It would be useful to have

• Experience with PCS, EV chargers, SST, HVDC/STATCOM, or MV VFDs.
• CE/UL/TUV certification experience with external bodies.
• Knowledge of grid synchronisation, protection, and stability, plus volume manufacturing and energy storage/renewable integration exposure.
• Employee Option Plan — equity in the business.
• Private medical & dental cover via Bupa from day one (dependents optional).
• Company pension, annual professional development budget, and flexible/WFH arrangements.
• Cycle to Work Scheme, plus 2 extra "slow travel" days per year for low‑carbon travel.