Senior Power Electronics Engineer

£Competitive, benefits include - 27 Days Holiday + Bonus + Pension

Malmesbury, Wiltshire


This role sits within the Motors and Power Systems team of our automotive function.

Market Overview

Malmesbury is tucked away in countryside famous for the landmarks of Isambard Brunel, who revolutionised modern engineering. A charming Wiltshire market town doesn’t sound like the place to develop world leading technology, but it’s just right for us. Our secluded location helps us to protect our ideas and stay independent–minded.

As part of the £2.5 billion investment, Dyson acquired a 650 acre plot in Hullavington. This former Royal Air Force base, just five miles from Dyson HQ, will increase our UK footprint tenfold. We’ll be turning old hangars into futuristic labs and workspaces – creating a campus to rival those in Silicon Valley.

Function Overview

We’ve begun work on a battery electric vehicle – that’s no secret. It has remained our ambition to solve the worldwide problem of air pollution for nearly 30 years. Now that we have the ability to bring all our technologies together into a single product, we’re able to solve this problem at the source. For now, it’s all about finding the right people to make it all happen for 2020.


Applicants for this particular role must have directly applicable experience in the aforementioned power electronics areas. The senior power electronics role will involve: Working with the different research teams to gain an in depth product understanding, while using their expert knowledge of the latest technologies to create innovative power electronics systems and solutions •The design of motor inverters, device selection, gate drive design, operating and protection strategies. •The design of power supplies for a broad spectrum of potential applications and power ratings. •Ensuring designs can comply with relevant EMC/EMI standards and modifying the design where needed to ensure this is the case. •Specification of associated passive components, contactors, cables, connectors and fusing. •Thermal management of power electronics systems. •Design of both mains and battery powered electronics to meet global requirements. Whilst the Power Electronics team is responsible for supporting new products at initial design stages, a key focus for any successful applicant will be to research into new technology and look at innovative ways of incorporating this into future products. As a senior employee, a successful applicant will be expected to: • Develop the concept, proving key technologies and demonstrating the system feasibility. •Demonstrate designs are robust, cost effective and fit for purpose for a high volume manufacture environment, through detailed laboratory testing, simulation and analysis. •Initiating the production intent solution and developing suitable documentation prior to handover to the development teams. •Take technical responsibility for the power electronics content of a project. This may expand to the responsibility for multiple, small concurrent projects, supported by a number of team members reporting to the Power Electronics Technical Leader. • Assist in the personal development of junior team members.


Education and experience: • PhD degree in Electronic Engineering or other relevant discipline with a demonstrable level of industrial experience. Minimum technical knowledge: Power Electronics: •Excellent general knowledge of power electronic devices, including silicon based IGBTs and MOSFETs through to emerging SiC / GaN based technologies. •Understanding of device characteristics and issues with switching behaviour in real circuits. •Proven experience in motor inverter design and motor control, particularly gate drive design to component level. •Device selection - Interpretation of datasheets and knowledge of design methods to confidently select the lowest cost devices while achieving reliability targets. •Power electronics layout for best compromise between good switching performance, cooling, cost and size. •Thermal design •Design and specification of passive components Design Tools: •Schematic capture using Altium Designer, Mentor Graphics or other main stream tools •Use of SPICE based simulation tools such as Simetrix •System level modelling tools such as Matlab, Simulink and PLECS •FlowTherm or similar thermal modelling packages •Design calculation tools such as Mathcad, Matlab, Excel Design Techniques: •Circuit simulation and design tolerance analysis •Robust design including FMEA techniques •Good quality engineering process understanding and appreciation •Design for high volume manufacture •Mains and DC equipment •PCB layout – size/cost minimisation while achieving layouts for inherently good EMC compliance and thermal design •Experience of analogue circuit design (e.g. signal amplification and conditioning for feedback signals from power electronic hardware to microcontrollers for example) is desirable.

Benefits Overview

Dyson monitors the market to ensure competitive salaries and pension contributions. Beyond that, you’ll also enjoy a profit-related bonus, generous leave and life insurance. But financial benefits are only the start of a Dyson career. Rapid professional growth, leadership development and new opportunities abound, driven by regular reviews and dynamic workshops. And with a vibrant culture, flexible working hours, the latest devices and a relaxed dress code reflecting our engineering spirit, it’s an exciting team environment geared to creativity, innovation and ambition.

Posted: 7-Feb-2018

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