Key Responsibilities
Design and develop embedded firmware for BMS using Embedded C++
Implement battery protection algorithms including:
Over-voltage / Under-voltage
Over-current (charge & discharge)
Short-circuit protection
Over-temperature / Under-temperature
Cell imbalance and fault handling High-voltage sensing and isolation.
Precision cell voltage and temperature sensing.
Current sensing.
Battery balancing
Develop State of Charge (SOC) estimation (e.g., using Coulomb counting, Kalman filters).
Develop State of Health (SOH) and State of Power (SOP) estimation.
Implement charge / discharge control logic (CC/CV behaviour understanding)

Software Architecture & Design
Define and maintain firmware architecture
Develop state machines for BMS operation modes (Idle, Charging, Discharging, Fault, Sleep, Shipping mode)
Implement bootloader and application separation & FOTA
Support firmware update (CAN-based flashing / bootloader)

Communication & Diagnostics
Implement and debug CAN communication
Experience with UDS (ISO 14229) diagnostics:
Read/Write DIDs
Fault codes (DTCs)
Session control
Security access
Integration with VCU, Charger, Motor Controller, Telematics




Develop diagnostic logs and debug interfaces

Testing & Validation
Unit testing and bench testing of firmware
Characterize and validate BMS performance on battery cell, module, and pack level test benches.
Support HIL / SIL / Vehicle-level testing
Debug issues using logs, CAN traces, oscilloscopes, logic analysers
Root cause analysis of field failures

Collaboration
Work closely with hardware, system, and validation teams
Create and maintain comprehensive design documentation, including requirements, schematics, DFMEAs, and design review presentations.
Support production, manufacturing, and service teams
Maintain firmware documentation and change logs

Mandatory Technical Skills
Embedded C / C++
Real-time embedded systems
CAN protocol (Classical CAN)
UDS diagnostics
In-depth understanding of lithium-ion battery chemistry (Li-ion, LFP, NMC preferred), characteristics, and associated safety concerns.
Experience with BMS ICs (TI / NXP / ADI / Renesas / JBD etc.)
Version control (Git)
Extensive experience with electronic lab equipment for debugging and validation.
Debugging using JTAG / SWD

📌 Bms Firmware Development Pimpri Chinchwad (Pimpri-Chinchwad)
🏢 Kinetic Engineering
📍 Pimpri-Chinchwad