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, team-oriented 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 current 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