Expert Technologist - Modelling

Entity: Customers & Products Job Family Group: Research & Technology Group Job Description: 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 dynamic and inclusive global organization.

Apply now! 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 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. 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 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. 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 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.

We are an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, perform crucial job functions, and receive other benefits and privileges of employment.

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, Microbiology in the energy industry, Microscopy, Multi-physics modelling, Petrography, Presenting, Relative permeability analogue provision, Subsurface Geology, Thermodynamic simulation, Waterfall Model, Wellbore geomechanics, Writing skills Legal Disclaimer:

We are an equal opportunity employer. We do not discriminate on the basis of protected characteristics like race, religion, color, sex, national origin, sexual orientation, veteran status or disability status. Individuals with an accessibility need may request an adjustment/accommodation related to bp’s recruiting process (e.g., accessing the job application, completing required assessments, participating in telephone screenings or interviews, etc.). If you would like to request an adjustment/accommodation related to the recruitment process, please  contact us .

If you are selected for a position and depending upon your role, your employment may be contingent upon adherence to local policy. This may include pre-placement drug screening, medical review of physical fitness for the role, and background checks.