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White-collarMid (3-6 yr)EngineeringBattery TechCritical demand

BMS Firmware Engineer

Also known as: Battery Management Firmware Engineer · Pack Controller Firmware Engineer

Builds the embedded firmware that monitors and protects every cell in an EV battery pack.

Salary band · India

₹12L – ₹28L

Median ₹18L

Experience

3–9 yrs

Mid (3-6 yr)

Hiring outlook

Critical

Role overview

BMS firmware decides when a pack is healthy, when it's degrading and when it needs to shut down. Engineers implement state estimation (SOC, SOH, SOP), cell-balancing, fault detection, ISO 26262 safety mechanisms and CAN-bus comms with the VCU. Tight memory budgets (often <512KB flash) reward careful C engineering.

Key skills

BMS algorithmsSOC / SOH estimationKalman filterCell balancingISO 26262C / C++CANNXP S32K

Tools & software

MATLAB / SimulinkANSYS FluentAVL CRUISE-MArbin / MaccorCATIA

Responsibilities

  • Own design, validation and continuous improvement of the assigned battery subsystem across cell, module and pack levels.
  • Partner with cell chemistry, BMS, thermal and mechanical teams to deliver an integrated battery design that meets performance, safety and cost targets.
  • Define test plans (DV / PV) and review supplier validation reports against IS 17017, AIS 156 and ECE R100 requirements.

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Requirements

  • BE / BTech in Electrical, Electronics, Mechanical or Chemical Engineering.
  • Strong fundamentals in electrochemistry, thermal management or pack mechanical design.
  • Hands-on experience with battery test equipment (Arbin, Maccor, BaSyTec or equivalent).

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Typical employers

Ather EnergyOla ElectricIon EnergyVecmoconBosch IndiaContinental India

Industries

EV OEMBMS startupTier-1 supplier

Reports to: Battery Engineering Manager

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