Entity:

Customers & Products

Job Family Group:

Research & Technology Group

Job Description

Are you ready to join a team that s driving the future of lubricants & beyond and setting new industry standards Discover how our diverse and passionate people at Castrol are shaping the industry and how you can be part of this journey.

This is a role within the Castrol organisation and the successful candidate will become part of the Castrol ring-fence. If you are part of the ring-fence, it is expected that your employment will move with Castrol to new ownership.

We re seeking versatile experts who share our passion for innovation and excellence. Bring your outstanding perspective, collaborative spirit and challenge our thinking as we continue to lead the way in the lubricants market & build businesses beyond lubricants. This is your chance to learn, grow, and thrive in a agile and inclusive global organization.

What you will do...

The Engineer Thermal Management provides deep technical expertise for Castrol in system-level thermal modelling and simulation, with a primary focus on electrified powertrain, battery, motor, and fluid-based thermal systems. The role translates advanced physical modelling into actionable guidance for research prioritisation, formulation strategy and partner-led innovation programmes.

The role operates at the intersection of simulation, fluids, materials and system design influencing both internal R&D; direction and external collaborations with key customers to build new business opportunities for Castrol.

Key accountabilities include:

- System-level thermal modelling and simulation
- Develop and apply 1D and system-level thermal models integrating fluid design with components such as pipework, pumps, heat exchangers, batteries, motors, and electronics to evaluate whole-system performance rather than isolated components.
- Quantify and compare cooling architectures (e.g. indirect vs direct / immersive cooling) across multiple applications, including batteries, motors, and data-centre-relevant systems for automotive and non-automotive areas.





Thermal management of electrified systems

- Lead modelling activity for battery thermal management, including optimisation of flow channels, heat transfer paths and fluid distribution at cell, moldule and pack level.

- Support electric motor and power electronics cooling challenges, evaluating novel fluids, architectures and heat rejection strategies.
- Contribute to projects covering ultra-fast charging, electrification, and hydrogen-adjacent thermal challenges.

Simulation-led research prioritisation

- Use simulation to assess the size of the prize for different formulation or fluid technologies.

- Provide quantitative insight on how fluid properties translate to system-level benefit, informing which R&D; routes should be prioritised.
- Reduce reliance on costly or slow experimental iteration by front-loading decisions with modelling insight.

Programme and partner engagement

- Act as a subject-matter expert on externally funded and partner-led projects.
- Engage with multiple internal teams (e.g. EV Fluids, formulation scientists, hardware engineers) to ensure modelling outputs are usable, relevant, and timely.
- Provide expert input to reviews, capability discussions, and technology strategy forums.

Technical stewardship and capability development

- Shape and evolve thermal and system-level modelling capability within Advanced Fluids Research.
- Mentor and technically guide colleagues on modelling approaches, assumptions, limitations, and interpretation.
- Maintain awareness of state-of-the-art approaches in thermal management, simulation, and electrified systems.

What you will bring...

- Degree in mechanical,



aeronautical or automotive engineering.
- Minimum of 15 years experience in industry using STARCCM+ CFD modelling software.
- Strong background in fluid mechanics with experience in electronics modelling and/or automotive CAE applied to real systems.
- Robust expertise in multiphase modelling, especially 1D and 3D CFD of HVAC systems.
- Desirable experience using Siemens AMESim.
- Proficiency in CAD, preferably Siemens NX.
- Desirable expertise in battery modelling.
- Ability to interface with High Performance Computing (HPC) resources, basic knowledge of Linux scripting.
- The skill to create tools and methodologies to reduce complexity without sacrificing quality.
- Ability to translate complex modelling outputs into clear engineering and strategic recommendations.
- Clear and effective communicator with excellent written and spoken English. You will engage both technical and non technical audiences globally at various organisational levels, bringing gravitas and credibly to influence and support change.
- Strong problem solving, analytical and conceptual design skills.
- Delivery focused with excellent planning, organisational and execution capability; able to autonomously navigate complex and ambiguous technical challenges at pace.

Travel Requirement

Up to 10% travel should be expected with this role

Relocation Assistance:

This role is eligible for relocation within country

Remote Type:

This position is not available for remote working

Skills:

Aqueous Geochemistry, Biogeochemistry, Catalysis (Inactive), Computational fluid dynamics, Computer tomography scanning, Core Analysis, Data Analysis, Decision Making, Enhanced Oil Recovery, Experimental Design, Finite Element Structural Analysis, Geothermal modelling, Intellectual Asset Management

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Expert Technologist - Modelling (Mumbai)
🏢 Castrol
📍 Mumbai