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Power Electronics Engineer à Hauts-de-France, France - Jobeax

Power Electronics Engineer à Hauts-de-France, France is listed on Jobeax. Browse 120,000+ vacancies available.

EnerSys is a global leader in stored energy solutions for industrial applications. We have over thirty manufacturing and assembly plants worldwide servicing over 10,000 customers in more than 100 countries. Worldwide headquarters are located in Reading, PA, USA with regional headquarters in Europe and Asia. We complement our extensive line of Motive Power and Energy Systems with a full range of integrated services and systems. With sales and service locations throughout the world, and over 100 years of battery experience, EnerSys is the power/full solution for stored DC power products.

Job Purpose

The Power Electronics Engineer will act as the technical authority for the design, analysis, and optimization of modular Power Conversion Systems (PCS) rated at 100 kW , scalable to megawatt‑level power , for industrial and grid‑connected applications .

This role requires deep expertise in AC/DC power conversion , advanced power electronics topologies , semiconductor technologies , and liquid‑cooled high‑power systems .

The engineer will serve as the reference point for complex technical decisions , advanced simulations , design reviews , and innovation initiatives across the organization.

Key Responsibilities

Act as the technical reference for modular power conversion architectures, including the selection of topologies, modulation strategies, control algorithms, and protection schemes.
Perform advanced electrical, thermal, and EMC simulations to guide design choices and ensure system robustness.
Develop and optimize liquid‑cooling solutions for high‑density converters (cold plates, coolant loops, heat exchangers).
Define technical specifications for power modules, magnetics, semiconductors, and passive components.
Conduct in‑depth root‑cause analyses and propose corrective actions for complex field or validation issues.
Support design teams during critical phases: schematic definition, PCB layout reviews, thermal design, and system integration.
Participate in technical reviews (design reviews, FMEA / DFMEA, reliability analyses) and ensure compliance with applicable standards and regulations (IEC, UL, CE, EMC, and grid‑connection requirements).
Collaborate with suppliers on advanced components (SiC devices, high‑performance magnetics, thermal interfaces).
Contribute to technology roadmaps and innovation programs in high‑power conversion.
Provide expert support during prototype testing, commissioning, and customer‑specific adaptations.

Required Qualifications

Master’s degree or PhD in Electrical Engineering, Power Electronics, or a related field.
5+ years of experience in high‑power AC/DC converter design for industrial or grid applications.
Deep expertise in semiconductor technologies (IGBT, SiC MOSFET, GaN), magnetics, and digital control.
Proven experience with liquid‑cooled power modules and thermal management of high‑density converters.
Strong background in grid‑connected power electronics (harmonics, EMC, protection, control loops).
Proficiency with simulation tools such as PLECS, MATLAB/Simulink, COMSOL, LTspice.
Ability to solve complex technical problems and guide teams through high‑stakes engineering challenges.

Preferred Qualifications

Experience with modular power converters, grid‑forming inverters, or industrial AC/DC platforms.
Knowledge of communication protocols (CAN, Modbus, Ethernet,…).
Familiarity with certification processes for industrial power equipment.
Experience with laboratory testing, power benches, and high‑power validation environments.

What This Role Offers

A key expert position with strong influence on technical decisions and product direction.
The opportunity to shape next‑generation MW‑scale PCS technologies.
A highly technical environment focused on innovation and high‑performance engineering.
Direct contribution to industrial electrification and advanced power conversion systems.

EnerSys provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

We use artificial intelligence to screen, assess and select applicants for open positions, including for the purposes of reviewing and ranking application materials and scoring answers to application questions. Accordingly, decisions about your application and eligibility for employment with EnerSys may be made based exclusively on the automated processing of the personal information that you submit in your application materials.

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