R&D Electrical Transient Simulation Engineer

Hitachi, Ltd.; Łódź; On-site; PLN 120,000 - 210,000; Full time

Job summary

Hitachi, Ltd. in Lodz invites an R&D Engineer specializing in electrical transient simulations. You will work on medium voltage transformer and power converter technologies within an international team, driving design validation from concept through testing and product launch.

You will model transient behavior, analyse system performance and support quality and risk management activities, contributing to safer energy solutions.

Qualifications

• MSc or PhD in Electrical Engineering with R&D experience.
• Strong background in distribution system and transformer transient analysis.
• Experience with grid-connected power converters and modelling.
• Proficient in MATLAB and Python; familiarity with circuit simulators.

Responsibilities

• Develop and implement design rules for transformer and converter applications.
• Create and validate medium- and high-frequency models for performance analysis.
• Collaborate with customers during specification to meet requirements.
• Provide technical support to quality departments.
• Study overvoltage phenomena and transient effects on electrical systems.
• Use FEM and Matlab to analyze network resonance and reconfiguration.
• Take ownership of work packages and deliver results with structure.
• Contribute to IP and risk management activities in R&D.

Skills

Electrical transient analysis

Modeling

System-level simulation

FEM modelling

Python

MATLAB

Education

MSc or PhD in Electrical Engineering

Tools

MATLAB

Python

Simulink

PLECS

LT Spice

EMTP

Ansys/Comsol

Job description

The opportunity

Join our Next Generation Grids Transformers team in Lodz and shape the future of energy. As an R&D Engineer – electrical transient simulations, you will work on cutting-edge medium voltage transformer and power converter technologies in a dynamic, international environment.

You’ll be part of a collaborative global team, contributing to the full R&D lifecycle—from concept to testing and product launch, ensuring that our solutions meet technical specifications, market demands and quality needs. This role offers hands‑on experience, technical growth, and the chance to make a real impact in the energy transition.

How you will make an impact

• Develop and implement innovative design rules for transformer and converter applications to mitigate interaction failures.

• Create and validate medium- and high-frequency models to predict and analyze system behaviour as well as ensure optimal performance.

• Collaborate with customers during the specification stage to ensure that designs meet the requirements and performance expectations.

• Provide technical support to quality departments.

• Study overvoltage phenomena as well as the effect of transient events on electrical systems.

• Utilize advanced simulation tools, such as Finite Element Method (FEM) and Matlab, to analyze network resonance and reconfiguration.

• Take ownership of work packages and deliver results using a structured approach.

• Contribute to intellectual property and risk management activities in R&D.

Your background

• MSc or PhD in Electrical Engineering, ideally with experience in R&D within a business environment.

• Strong background in distribution system and transformer transient mathematical analysis, modelling, and simulation.

• Good knowledge of grid‑connected power converters and switching behaviour, ideally complemented with knowledge on average and small‑signal modelling.

• Good knowledge of MATLAB and Python, complemented by experience using dedicated electric circuit simulation tools, such as Simulink, PLECS, LT Spice, EMTP.

• Experience using finite element simulation tools (Ansys Comsol) would be a plus.

• Strong communication skills in English.

• Analytical thinking and ability to work independently and collaboratively within interdisciplinary and international teams.

We are committed to full transparency and compliance with all legal requirements, ensuring that every candidate knows exactly what to expect at each stage of the recruitment process. Once the process is successfully completed, we will share detailed information about financial conditions and benefits with the selected candidate. Before signing the employment contract, you will receive all remaining details of the offer, giving you the time and space to review everything carefully.