R&D Engineer- HVDC Converter valve cooing design

Hitachi Energy Ltd.; Västerås kommun; On-site; SEK 650,000 - 900,000; Full time

Job summary

Hitachi Energy Ltd. in Ludvika seeks engineers for valve cooling design in HVDC applications. You will work with cross-functional teams on cooling systems, perform simulations, and help optimize materials and manufacturing processes.

The role requires a Master’s degree in mechanical engineering or engineering physics, strong fluid and thermodynamics knowledge, and English proficiency. Experience with CFD or thermal calculations is a plus. CAD in NX preferred.

Qualifications

• Fluency in English (written and spoken).
• Strong fundamentals in fluid mechanics and thermodynamics.
• Open to multi-disciplinary mechanical and electrical assignments.
• Experience with new product development, flow simulations, thermal cycle calculations, or cooling system control is advantageous.

Responsibilities

• Develop new cooling technologies and improve existing ones to enhance HVDC converter valve performance and its cooling system.
• Conduct research, testing, and validation of cooling systems using advanced modelling, simulation, and analysis tools.
• Collaborate with electrical, mechanical, and software engineers to integrate cooling systems into designs.
• Evaluate and select materials, components, and suppliers for cooling systems based on technical requirements, cost, and reliability.
• Prepare 3D CAD models, drawings and BOM for cooling components.
• Perform DFMEA to prevent issues in future product development.

Education

Master’s degree in mechanical engineering or engineering physics

Tools

NX

Job description

You will be part of Technology and Solutions Development for HVDC applications, within Hitachi Energy, in Ludvika. The HVDC technology has been on the market for the past 60 years and is used, among other things, to transmit power over long distances with minimal losses, using overhead lines, underground and submarine cable systems.

The Valve Development Department is a part Technology and Solutions Development office in Ludvika, and it is responsible for the development of new HVDC and SVC converter valves. HVDC converter valves are used to convert AC to DC, and vice versa, and are essential for HVDC power transmissions. SVC converter valves are used in SVC systems, in order to support and stabilize AC systems. The Valve Development Department is focusing mainly on electrical and mechanical design and development activities and works in close collaboration with the global HVDC organization. Please find out more about our world leading technology at https://www.hitachienergy.com/offering/product-and-system/hvdc

You are welcome to join our energetic team with mix of experienced and young engineers and colleagues from diverse nationalities around the world. We work closely with design teams and collaborate with engineering and research team in Sweden and abroad.

How You'll Make An Impact

• Develop new cooling technologies and improve existing ones to enhance the performance of HVDC converter Valves and its cooling system.
• Conduct research, testing, and validation of cooling systems using advanced modelling, simulation, and analysis tools
• Collaborate with cross-functional teams, including electrical, mechanical, and software engineers, to integrate cooling systems into designs.
• Evaluate and select materials, components, and suppliers for cooling systems based on technical requirements, cost, and reliability.
• Work in new product development projects focusing on valve cooling design tasks involving
• Perform DFMEA to prevent unnecessary product development issues in future
• Preparation of 3D CAD Models, drawings and BOM

Your background

• Master’s degree in mechanical engineering or engineering physics.
• Genuinely curious in physics and new technologies that can be applied in a future product.
• Theoretical understanding in fluid mechanics and thermodynamics are must. Experience in CFD simulations or thermal cycle calculation will be an advantage.
• Open for multi-disciplinary assignments in mechanical and electrical fields.
• Experience with new product development, flow simulations, thermal cycle calculations, or control of cooling systems will be an advantage.
• Proficiency in 3D-CAD modeling, ideally in NX environment is preferred.
• Understanding of mechanical core competences, material selection, manufacturing
• methods, GD&T, and basic understanding of electrical technology.
• Knowledge of fieldbus technology, component/instrument, deionizing chemistry, and cooling system redundancy philosophy will be an added advantage.
• Fluency in English -written and spoken. Proficiency in Swedish will be an advantage.
• Experience in exchange study or any other international opportunity will be an advantage.

More About Us

Union representatives -SverigesIngenjörer;TorbjörnWilund, [phone], or MikaelHjort, [phone];Ledarna: Christer Fridlund, [phone];Unionen: StefanBarkman, [phone].All other questions can be directed to Talent PartnerFilip Henriksson at

Publication date : 2026-10-16