Job Purpose (Significance of the Role &

- Objectives) We are looking for a Thermal Systems Engineer – Vehicle &
- Battery with strong experience in CFD-based thermal analysis for EV battery packs and powertrain systems. The role involves end-to-end ownership of thermal simulations, cooling system design, vehicle-level integration, and correlation with test data. The ideal candidate has hands-on experience working on at least one running vehicle or battery pack program.

Key Responsibilities and Deliverables 1. Simulation &
- Analysis (50%) - Perform CFD-based thermal simulations using ANSYS Fluent / Star-CCM+ (mandatory).
- Battery pack thermal analysis at cell-level and module-level, including steady-state and transient cases.
- Thermal simulation of inverter and motor cooling systems.
- Under-hood and under-body airflow and thermal management studies.
- Analyze Joule heating and electrical losses in:
- Busbars, tabs, connectors - High-current transient operating conditions - Support thermal runaway mitigation, venting, and safety studies (good to have).
- Prepare simulation reports with explicit design recommendations.
- Design &
- Packaging (30%) - Design and optimize cooling plates, ducts, and flow paths.
- Perform fan and pump sizing based on thermal and hydraulic requirements.
- Package thermal systems at the vehicle level, considering space, manufacturability, and serviceability.
- Work closely with CAD teams using SolidWorks / CATIA / NX to implement thermal solutions.
- Support design trade-offs between performance, cost, weight, and packaging constraints.
- Execution &
- Validation (20%) - Define and support sensor placement (NTCs, RTDs,



thermocouples) for validation.
- Correlate CFD results with vehicle, dyno, and bench test data.
- Coordinate with vendors for radiators, pumps, hoses, and thermal components.
- Support vehicle testing, dyno testing, and on-road validation activities.
- Troubleshoot thermal issues observed during testing and production trials.

Desired Qualifications: Required Qualifications, Knowledge, and Experience Required Qualifications - Bachelor’s or Master’s degree in Mechanical, Automotive, Electrical, or Thermal Engineering - 3–7 years of relevant industry experience - Background in EVs, automotive systems, or power electronics - Direct involvement in at least one running vehicle program or battery pack Knowledge and Experience - Strong expertise in ANSYS Fluent or Star-CCM+ (non-negotiable) - Working experience with Icepak (strong plus) - Practical understanding of:
- Battery thermal management systems - Motor and inverter cooling - Vehicle-level airflow and heat rejection - CAD experience using SolidWorks / CATIA / NX - Basic proficiency in MATLAB for data analysis and post-processing - Familiarity with thermal testing, validation, and correlation methods Key Competencies - Ability to work effectively with incomplete or evolving data - Strong engineering judgment beyond simulation results - Comfortable with fast iteration cycles and startup-style execution - Hands-on mindset with shop-floor and test-track interaction - Clear communication with cross-functional teams (design, testing, vendors) - Problem-solving approach focused on real-world performance, not just “CFD says OK”

📌 Thermal Systems Engineer – Vehicle & Battery (Bengaluru)
🏢 Pravaig
📍 Bengaluru