Principal Power Electronics Engineer

Evolito Ltd; Bicester; On-site; GBP 50,000 - 75,000; Full time

Job summary

A leading company in electric propulsion is looking for a Principal Power Electronics Engineer. The role involves technical leadership in developing high-performance inverter systems for aerospace applications, ensuring compliance with industry standards. Candidates should have a strong background in power electronics and a 'self-starter' attitude to thrive in a growing team.

Qualifications

• Proven experience in power electronics discipline.
• Strong knowledge of IGBTs, MOSFETs, and other devices.
• Ability to generate high-standard documentation.

Responsibilities

• Lead development of inverter power systems and circuit design reviews.
• Design, validate, and ensure compliance of high-power inverters.
• Perform thermal simulations and manage PCB layout integrity.

Skills

Power electronic devices

Modelling and simulation

Thermal management

Schematic layout

Design for EMC compliance

Problem-solving

Communication skills

Education

Degree in Electrical / Electronic Engineering

Tools

ECAD tools

Mathcad

Simulink

Job description

Evolito's mission is to accelerate the adoption of electric propulsion in aerospace applications in support of a net-zero world. We will help to revolutionise personal mobility and transform our towns and cities with clean, noise-free air transportation.

Evolito develops and manufactures class-leading, lightweight, high-power, and high-torque-density electric propulsion systems for a range of aerospace markets, including EVTOL, Unmanned Aerial Vehicles and General Aviation.

As well as ultra-high performance, low-weight electric motors and controllers, Evolito specialises in high integrity, bespoke battery systems for the aerospace and defence markets. The team is scaling rapidly and has ambitious growth plans over the next twelve to eighteen months.

As part of our current high-growth phase, we are looking for a Principal Power Electronics Engineer to play a pivotal technical leadership role in shaping the design, development, and delivery of high-performance inverter systems. You will act as a technical authority, mentor, and strategic contributor, driving innovation and ensuring engineering excellence across the power electronics domain.

Key responsibilities will include:

• Lead and support the development of inverter power systems, including specification definition and circuit design reviews
• Contribute to the system safety case in accordance with ARP4754A and DO-254 standards
• Design and validate high-power inverters for aerospace environments, ensuring compliance with performance and safety requirements
• Perform thermal simulations and evaluate thermal models to ensure robust thermal management
• Oversee PCB layout design and provide manufacturing support to ensure design integrity and manufacturability
• Assess component lifetime, define operational limits, and apply appropriate derating strategies
• Support EMC testing and contribute to the creation and maintenance of technical documentation and compliance files

Skills and experience required:

• Degree or equivalent in Electrical / Electronic Engineering, or a demonstrable level of relevant industrial experience
• Previous proven experience in relevant industry
• Demonstrated track record of engineering ability in a power electronics discipline
• Strong knowledge of power electronic devices (IGBTs, MOSFETs, wideband gap devices, Capacitors, Current sensors)
• Previous experience of electronic component selection and characterisation
• Experienced in modelling, simulation and analysis of power devices for inverter systems
• Proficiency in power electronics design, including schematic layout, PCB layout, component selection
• Ability to perform design analysis, including worst-case, tolerance, thermal, and stress
• Proficiency with ECAD tools including Mathcad, Simulink, Schematic, PCB, Modelling, Simulation
• Designing for EMC compliance and best practices
• Understanding of Design for Test (DFT) and Design for Manufacture (DFM)
• Experience developing products that comply with functional safety standards (such as ARP4754A/DO254 / ISO 26262)
• Experience working with high voltage / high current / high-energy systems, following safe systems of work
• Ability to interface with customers and suppliers with the ability to present information, detail requirements and understand issues
• Ability to generate documentation to a high standard for internal and external customers
• Strong communication skills (both written and verbal), good collaboration skills, and the ability to work effectively across teams
• Instinctive problem-solving skills coupled with a sound analytical approach
• A 'self-starter' attitude with the ability to thrive in a small business environment
• Ability to work under pressure and manage conflict, demands and deadlines
• Flexible approach to work
• Results-orientated, and able to deliver business value
• An interest in continuous professional development and combining experience with new or novel techniques
• Ability and willingness to travel.