Power Electronics Systems Engineer

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Role: Power Electronics System Engineer

Mode : Permanent

Location: Gaydon

Careers at TCS: It means more

TCS is a purpose-led transformation company, built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve - our clients include some of the biggest brands in the UK and worldwide. For you, it means more to make an impact that matters, through challenging projects which demand ambitious innovation and thought leadership.

• Work on advanced electric vehicle power conversion and high-voltage charging technologies.
• Contribute to the design and validation of critical systems including onboard chargers, DC-DC converters and traction inverters.
• Collaborate with global engineering teams to solve complex technical challenges and deliver reliable automotive solutions.

The Role

As a Power Electronics System Engineer, you will support the design, development and validation of high-voltage power conversion systems for electric vehicle applications. You will contribute across system architecture, requirements engineering, simulation, component selection, validation and root cause analysis, working with global cross-functional teams to deliver safe, efficient and reliable solutions.

Your responsibilities:

• Design, develop and validate power conversion systems, including onboard chargers, DC-DC converters, high-voltage junction boxes, battery charging systems and traction inverters.
• Define system architectures, develop technical requirements and conduct feasibility studies for high-voltage automotive applications.
• Apply linear and switch-mode power supply topologies, including high- and low-voltage buck/boost, PFC, LLC, PSFB, HV-HV and HV-LV conversion.
• Select and evaluate power electronic components, including MOSFETs, IGBTs, SiC devices and operational amplifiers.
• Perform power-loss estimation, thermal analysis and heat-sink selection for power semiconductor devices.
• Develop model-based power-loss assessments using MATLAB/Simulink and conduct circuit simulations using PSpice, LTspice or equivalent tools.
• Apply Worst Case Analysis and basic Signal Integrity principles to improve design robustness and reliability.
• Support the design, debugging, optimisation and root cause analysis of high-power traction inverter systems.
• Prepare, review and validate technical documentation in line with automotive development lifecycle requirements.
• Plan and prioritise engineering activities, collaborating effectively within global Agile teams using Scrum and Sprint practices.

Your Profile

Essential skills/knowledge/experience:

• Strong knowledge of 400V and 800V high-voltage vehicle architectures, battery systems and EV charging infrastructure.
• Extensive understanding of power semiconductor technologies, including IGBT, MOSFET, SiC and GaN devices.
• Hands-on knowledge of switching converters, power supply architectures and traction inverter topologies.
• Experience in system-level validation, technical troubleshooting and structured root cause analysis.
• Knowledge of microcontrollers, microprocessors and memory architectures used in embedded systems.
• Experience with MATLAB/Simulink and circuit simulation tools such as PSpice and LTspice.
• Understanding of automotive development lifecycles and engineering frameworks, including ASPICE and the V-model.

Desirable skills/knowledge/experience:

• Experience in software integration for embedded or automotive systems.
• Practical experience with vehicle charging systems and applications.
• Awareness of EV charging standards, including CCS/Combo, DIN 70121 and ISO 15118.
• Interest in developing deeper expertise in electric vehicle charging technologies.

Rewards & Benefits

TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance, laptop, phone, access to extensive training resources and discounts within the larger Tata network.

We offer health & wellness initiatives and sports events; we are the proud sponsor of the London Marathon.

Diversity, Inclusion and Wellbeing

Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the UK Equality Act 2010 and the UK Human Rights Act 1998.

We welcome and embrace diversity in race, nationality, ethnicity, disability, neurodiversity, gender identity, age, physical ability, gender reassignment, sexual orientation. We are a disability inclusive employer and encourage disabled people to apply for this role.

As a Disability Confident Employer, we offer an interview to applicants with disabilities or long-term conditions who meet the minimum criteria for the role. Please email us at [email protected] if you would like to opt in.

If you are an applicant who needs any adjustments to the application process or interview, please contact us at [email protected] with the subject line: “Adjustment Request” or call TCS London Office 02031552100 / +44 204 520 2575 to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.

Next Steps:

Application Process

1. Online application: You can apply directly through LinkedIn/ by uploading your CV. In case you wish to submit your application via another format like audio/video, please, contact - [email protected]
2. Skill-Based discussion: This will be a level 1 interview with the project team, it can be via video or in-person. Details will be confirmed by your recruiter.
3. Managerial discussion: This discussion will focus on behavioural aspects and person-organisation fit.
4. HR Discussion : This will be with one of the members of the HR team and will cover your career journey, aspirations for growth, compensation and any other questions you may have.

Beware of Fraudulent offers

This is to notify you that TCS does not ask for any sort of payment or security deposit from candidates at any stage of the recruitment process. The firm never sends out job offers from free internet email services like Gmail, Yahoo Mail, and so on. TCS has not authorised any third-party company to collect money on their behalf. As a vigilant job seeker, beware of fraudulent recruitment activity and protect your interests! You can write to [email protected] to report any fraudulent activity.

Due to the high volume of applications, we will be unable to contact each applicant individually on the status of their application. If you have not received a direct response within 30 days, then it should be deemed unsuccessful on this occasion.

Join us and do more of what matters. Apply online now.