R&D Expert – Insulation Systems & Dielectric Design

Hitachi, Ltd.; Łódź; On-site; PLN 260,000 - 420,000; Full time

Job summary

Hitachi, Ltd. in Poland seeks a senior engineer to own insulation system design for transformers, leading modeling, validation, and testing efforts. You will act as the technical authority for liquid and solid insulation and ensure dielectric performance through life-cycle analysis.

The role requires deep expertise in insulation systems, material-fluid interaction, aging, and reliability, with a background in electrical engineering and extensive R&D experience in transformer applications.

Qualifications

• Strong knowledge of solid insulation systems (cellulose, pressboard, barriers).
• Strong knowledge of liquid insulation (mineral oil and alternatives).
• Understanding of material-fluid interaction, aging and moisture behavior.
• Ability to connect dielectric design with long-term reliability.

Responsibilities

• Act as technical authority in insulation systems (liquid and solid).
• Define and improve dielectric design rules and validation methods.
• Lead or contribute as project member in R&D projects.
• Prepare transformer designs, models, and engineering documentation.
• Define DoE for validation and support prototyping.
• Contribute to failure analysis related to insulation and aging.
• Build domain capability through coaching and knowledge transfer.
• Support factories, R&D teams, and customers with technical expertise.

Skills

Solid insulation systems

Liquid insulation

Material-fluid interaction

Dielectric design

Materials science exposure

Aging behavior

Insulation systems expertise

Testing & validation

Education

Electrical Engineering or related field

Job description

Opportunity:

Work with us to deliver R&D projects for DTR Liquid-filled transformers, combining deep insulation systems expertise with strong engineering execution. You will lead and contribute to design, modeling, validation, and testing activities, while acting as technical authority for liquid and solid insulation systems and dielectric behavior.

How you'll make an impact:

• Act as technical authority in insulation systems (liquid and solid)
• Define and improve dielectric design rules, insulation coordination, and validation methods
• Contribute as project member or technical leader in R&D projects
• Prepare transformer designs, models, and engineering documentation
• Define Design of Experiments (DoE) for validation and support prototyping
• Contribute to failure analysis related to insulation, PD, and aging
• Build and scale domain capability through coaching and knowledge transfer
• Support factories, R&D teams, and customers with technical expertise

Your background:

• Strong knowledge of solid insulation systems (cellulose, pressboard, barriers)
• Strong knowledge of liquid insulation (mineral oil and alternative fluids)
• Understanding of material-fluid interaction, aging, moisture behavior, and degradation mechanisms
• Ability to connect dielectric design with material behavior and long-term reliability
• Background or exposure to materials science, electrochemistry, or polymer behavior is considered an advantage
• Degree in Electrical Engineering or related field
• 10-15+ years of experience in industry, preferably R&D and Transformers
• Strong expertise in insulation systems and dielectric design
• Experience with testing, failure analysis, and validation
• Strong understanding of material and fluid behavior in insulation systems

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.