Battery Management Systems (BMS) Engineer

Job Summary:

Battery Management Systems (BMS) Engineer

Key Responsibilities:

• Design and develop

  Battery Management Systems (hardware & software)

  for lithium-ion and other advanced battery chemistries.
• Define system architecture including

  cell monitoring units (CMU), battery control units (BCU/VCU), and power distribution

  .
• Develop and validate

  SOC (State of Charge)

  ,

  SOH (State of Health)

  ,

  SOP (State of Power)

  estimation algorithms.
• Interface with

  embedded software teams

  to develop firmware for real-time control, protection, and communication.
• Work on

  thermal management strategies

  and battery pack protection mechanisms.
• Develop and maintain

  CAN, SPI, UART communication protocols

  and diagnostics (UDS, OBD).
• Integrate BMS with other vehicle systems such as inverters, chargers, and telematics.
  
• Conduct

  simulation, HIL (Hardware-in-the-Loop), and bench-level testing

  for performance validation and fault analysis.
• Ensure compliance with

  functional safety standards (ISO 26262)

  and

  battery certifications (UN 38.3, AIS 048, IEC 62660)

  .
• Work with

  cell vendors, pack designers, and external test labs

  to optimize system performance and reliability.
• Create detailed

  technical documentation

  , test plans, and reports for internal and regulatory use.

Required Skills & Qualifications:

• Strong understanding of

  Li-ion battery chemistry

  , cell balancing (passive/active), and battery pack architecture.
• Experience with

  MATLAB/Simulink

  ,

  Altium Designer

  ,

  LTspice

  , or

  PSIM

  .
• Proficiency in

  embedded C/C++

  , especially for automotive-grade microcontrollers (TI, ST, NXP, etc.).
• Hands-on experience with

  CAN tools

  (CANalyzer, CANoe),

  ETAS INCA

  , and

  diagnostic protocols

  .
• Experience with

  safety-critical system design

  ,

  FMEA

  ,

  ISO 26262

  , and

  ASIL

  levels.
• Familiarity with

  battery testing equipment

  : cyclers, impedance analyzers, thermal chambers, etc.

Preferred/Bonus Skills:

• Knowledge of

  Battery Cell Modeling

  and

  Electrochemical Impedance Spectroscopy (EIS)

  .
• Experience in

  EV architecture

  , working on

  VCU-BMS integration

  .
• Exposure to

  cloud-based BMS monitoring systems

  (IoT for battery diagnostics).
• Experience in

  automotive standards

  such as

  ISO 15118

  ,

  ISO 21434

  , and

  AUTOSAR

  .
• Knowledge of

  battery pack design

  ,

  mechanical constraints

  , and

  thermal simulation tools

  (e.g., ANSYS, FloTHERM).