Computational Fluid Dynamics Engineer

Hitachi Automotive Systems Americas, Inc.; Łódź; On-site; PLN 120,000 - 180,000; Full time

Job summary

Hitachi Energy Poland is seeking an R&D Computational Fluid Dynamics Associate Engineer to join the Global Multi-Physic Simulation (GLOMUS) network. You will work with CFD analysts on thermo-fluid analyses for transformers and related equipment, developing自动化 tools and validating models.

You will collaborate across an international R&D environment, design experiments, and transfer knowledge to engineering teams. This role requires travel willingness and fluent English for global collaboration.

Qualifications

• PhD or MSc in Mechanical Engineering, Aerospace Engineering, Physics or closely related field.
• Strong CFD and thermo-mechanical simulation experience.
• Experience with industry-standard tools like ANSYS, OpenFOAM, COMSOL.
• Programming/scripting in MATLAB, Python, Visual Basic.

Responsibilities

• Create and improve CFD automation tools for thermo-fluid analysis in electrical machines.
• Propose technical solutions for transformers and reactors to meet standards and performance.
• Maintain technical standards for thermo-mechanical performance of transformers.
• Collaborate in multi-physics simulations and design validation campaigns.

Skills

CFD

Heat transfer

Numerical methods

Programming scripting

Education

PhD or MSc in Mechanical Engineering

Tools

ANSYS CFX/FLUENT

OpenFOAM

COMSOL

StarCCM+

Job description

Location: Lodz, Lodz, Poland Job ID: R0123342 Date Posted: 2026-05-08 Company Name: HITACHI ENERGY POLAND SP. Z O.O. Profession (Job Category): Engineering & Science Job Schedule: Full time Remote: No

Job Description: The Opportunity As R&D Computational Fluid Dynamics Associate Engineer, you will join our Global Multi-Physic Simulation (GLOMUS) network team in the Technology Center of HITACHI-Energy. You will join a team of CFD analysts as part of a wider group of key people with specific expertise in the fields of electrical, structural, acoustic, thermo-mechanic and fluid-dynamics analyses, simulation and testing. As part of our global R&D community including Technology Centers and Research Centers worldwide, you will contribute to support all factories in the PG Dry, Traction and Distribution Transformers on innovative and challenging research projects.

How you’ll make an impact

• You will be responsible for creating and improving analytical tools and computational fluid dynamics (CFD) automations for thermo-fluid dynamic analysis in electrical machines such as transformers and reactors.
• Propose and provide technical solutions for a variety of transformers and reactors, ensuring that they meet the required standards and performance expectations.
• Actively participate in the creation, updating, and maintenance of technical standards that dictate the management of thermo-mechanical performance of various transformers, including dry, liquid-filled, and traction distribution transformers.
• Work within the GLOMUS network, collaborating with other simulation teams to deliver comprehensive multi-physic finite element methodologies and automations for coupled electromagnetic, structural, and fluid-dynamic problems.
• Design and conduct experimental campaigns to validate the technical solutions and numerical models you or the team propose.
• Provide timely and effective support to factories facing technical challenges and facilitate the transfer of technology and knowledge from R&D to the engineering department through the creation of design rules, training materials, and collaboration with design tools teams.
• Carry out CFD simulations for cooling systems in all types of transformers, run feasibility studies, develop new technical concepts, design new products, and simulate their expected performances to contribute to technology development projects.

Your Background:

• PhD or MSc in Mechanical Engineering, Aerospace Engineering, Physics, or a closely related field, with a strong focus on heat transfer, fluid mechanics, and thermodynamics.
• Strong hands-on experience in Computational Fluid Dynamics (CFD) and thermo-mechanical simulations, applied to complex industrial systems such as transformers or similar thermal-fluid equipment.
• Advanced proficiency in numerical methods for thermodynamic and heat transfer simulations, including conjugate heat transfer, turbulence modelling, and transient analyses.
• Practical experience with industry-standard tools such as ANSYS CFX/FLUENT, OpenFOAM, COMSOL and StarCCM+, with demonstrated ability to customise models for internal oil flows, cooling ducts, and heat exchangers.
• Solid knowledge of programming and scripting for model development, automation, and post-processing, including MATLAB, Python, and Visual Basic.
• Ability to develop custom thermal or thermal-hydraulic solvers, parameter estimation routines, and data-driven enhancements to physics-based models.
• Understanding of Fluid-Structure Interaction (FSI) theory, particularly as applied to thermally induced stresses, vibration risks, and deformation in fluid-cooled structures.
• Experience coupling thermal, hydraulic, and mechanical domains in multiphysics simulation environments.
• Excellent communication skills, able to convey complex thermal and CFD concepts to multidisciplinary teams.
• Strong team spirit, with experience in collaborative, international R&D or engineering environments.
• Innovative, out-of-the-box mindset, contributing to advanced modelling approaches, design optimisation, and digitalisation initiatives.
• Willingness to travel and fluency in English are practical requirements for the job that enable collaboration in diverse environments and effective communication in the international arena.

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Hitachi brings together the world's greatest minds to help breathe life into new possibilities - and drive innovation for a better future. That’s why we look for individuals who share our pioneering spirit, have imaginative ideas and are fearless when it comes to tackling the world’s biggest challenges. Our people love technology - and they love making a difference. They have a passion for finding new solutions and working with brilliant colleagues. Every day they dedicate themselves to a huge range of exciting projects, contributing to the Hitachi vision around the globe. From engineering new sustainability solutions that conserve water and energy to creating the infrastructure for the smart cities of tomorrow, there’s no challenge too great for our pioneers. And there’s no shortage of opportunities for you to make a difference. Come and experience the dynamic, collaborative and creative environments where your ideas are welcome and new discoveries are waiting. To help you grow to your full potential, we strive to support our employees in their career aspirations and promote the freedom to explore new horizons.

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