Job category

- Research & Technology
- Experience level
- Senior
- Relocation available
- This role is eligible for relocation within country
- Job type
- Professionals
- Travel required
- Up to 10% travel should be expected with this role
- Job code
- RQ111347

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 current industry standards? Discover how our diverse and passionate people at Castrol are shaping the industry - and how you can be part of this journey.

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 dynamic and inclusive global organization.

Castrol is a global leader in lubricants and currently part of the bp Group, one of the world’s largest energy companies. In India, Castrol is a publicly listed company, leading in the Automotive, Industrial, and Marine lubricant sectors. With iconic brands, relentless innovation, strong customer relationships and a team of highly motivated employees, we have maintained our market leadership in India for over a century. Our robust manufacturing and distribution network in India helps us reach consumers through more than 135,000 outlets.

At Castrol, success knows no bounds. We offer a fast-paced learning environment where you can develop your career in specialized functions. Castrol India has a proud legacy of championing top talent both locally and globally.





We are currently looking for an Expert Technologist - Modelling and Simulation for India based at Patalganga with details mentioned below.

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

- Use modelling outputs to guide engineering trade-offs and decision-making , not just reporting results.

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

- 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.
- Strong 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 tool

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