We are seeking an experienced Senior BMS Engineer to lead the design,development, validation, and optimization of advanced Battery ManagementSystems (BMS) for lithium-ion battery energy storage applications. The idealcandidate possesses strong expertise in battery technologies, embedded systems,power electronics, control algorithms, and system integration.
This role involves close collaboration with hardware, firmware, EMS, PCS,cloud platform, and manufacturing teams to develop safe, reliable, and scalablebattery solutions for ESS, microgrid, telecom, EV, and industrial applications.
Key Responsibilities:
-Design and develop Battery Management System architectures for lithium battery systems
-Develop and optimize:
- -SOC (State of Charge) algorithms
- -SOH (State of Health) estimation
- -SOP (State of Power) estimation
- -Cell balancing strategies
- -Thermal management logic
- -Fault detection and protection algorithms
-Define battery protection strategies:
- -Overvoltage
- -Undervoltage
- -Overcurrent
- -Overtemperature
- -Insulation faults
- -Short circuit protection
-Develop embedded firmware and control logic for BMS controllers
-Analyze battery behavior, degradation, and lifecycle performance
-Perform battery modeling, simulation, and validation testing
-Integrate BMS with:
- -PCS
- -EMS
- -Inverters
- -SCADA systems
- -Cloud monitoring platforms
-Support communication protocol implementation:
- -CAN
- -Modbus
- -RS485
- -Ethernet
- -IEC 61850 (preferred)
-Collaborate with hardware teams on:
- -PCB design review
- -Sensor selection
- -Isolation design
- -Safety circuitry
-Conduct root cause analysis for field failures and abnormal battery events
-Support certification and compliance activities
-Mentor junior engineers and provide technical leadership
Required Qualifications
- Bachelor's or Master's degree in Electrical Engineering, Electronics Engineering, Embedded Systems, Energy Storage, or related field
- 5+ years of experience in BMS development or battery systems engineering
- Strong understanding of lithium-ion battery chemistry and characteristics
- Experience with:
- -Battery pack architecture
- -Cell balancing
- -Battery protection systems
- -Thermal management
- Strong embedded firmware development experience in:
- -C/C++
- -RTOS
- -MCU-based systems
- Experience with communication protocols:
- -CAN/CAN FD
- -Modbus
- -UART
- -SPI
- -I2C
- Familiarity with battery testing equipment and lab instrumentation
- Strong debugging and troubleshooting skills
- Experience with system-level integration and validation
Preferred Qualifications
- Experience with ESS / BESS / Microgrid systems
- Familiarity with:
- -Functional safety
- -ISO 26262
- -IEC 61508
- -UL 9540
- -IEC 62933
- Experience with high-voltage battery systems
- Knowledge of:
- -Active balancing technologies
- -Battery degradation modeling
- -AI-based battery analytics
- -Predictive maintenance
- Familiarity with simulation tools:
- -MATLAB/Simulink
- -PLECS
- -PSIM
- Experience with cloud-connected battery monitoring platforms
- Understanding of cybersecurity for industrial systems
Technical Skills
Battery Systems
- SOC/SOH/SOP Estimation
- Cell Balancing
- Thermal Runaway Protection
- Battery Safety Management
- Battery Modeling
Embedded Systems
- C/C++
- RTOS
- STM32 / TI / NXP MCU platforms
- Embedded Linux (optional)
Communication Protocols
- CAN / CAN FD
- Modbus RTU/TCP
- RS485
- Ethernet
- IEC 61850
Tools & Platforms
- MATLAB/Simulink
- Oscilloscope
- CAN Analyzer
- Logic Analyzer
- Git
- JIRA
Soft Skills
- Strong analytical and troubleshooting skills
- Leadership and mentoring capabilities
- Cross-functional collaboration
- Strong communication and documentation skills
- Ability to manage technical projects independently
Nice-to-Have Domain Experience
- Utility-scale BESS
- Telecom backup battery systems
- EV battery systems
- Hybrid microgrid systems
- Renewable energy integration
- Virtual Power Plant (VPP) systems
Example Projects
- High-voltage rack-level BMS development
- Active balancing system design
- Grid-scale ESS battery protection system
- Battery fault prediction and diagnostics platform
- Telecom lithium battery backup systems
- AI-enhanced battery degradation prediction
KPIs / Success Metrics
- Battery system reliability and safety
- Fault detection accuracy
- SOC/SOH estimation accuracy
- Reduction in field failure rates
- Certification compliance success
- Firmware stability and performance
- Battery lifecycle optimization
Benefits
- Competitive salary and performance bonus
- Flexible work arrangements
- Medical and insurance coverage
- Training and certification sponsorship
- Career progression opportunities
- Opportunity to work on next-generation energy storage technologies
