Senior BMS Software Architect for Residential Storage

FranklinWH Energy Storage Inc; Singapore; On-site; SGD 150,000 - 230,000; Full time

Job summary

FranklinWH Energy Storage Inc. seeks a Battery Management Software Expert to own the software architecture and core algorithms for residential energy-storage BMS.

You will drive SOC/SOH estimation, cell balancing, thermal control, safety protection, and field stability across multi-cell packs and hardware interfaces. You will collaborate with hardware, test and system teams, produce design specs and validation reports, and ensure compliance with international safety standards.

Qualifications

• Bachelor's degree or above in automation, electrical engineering, new energy, embedded software, or related discipline.
• Expertise in lithium-ion BMS principles and SOC, SOH, cell-balancing, thermal-management, fault-protection algorithms.
• Proficiency in embedded C, familiarity with CAN and RS485, and BMS hardware/software integration.
• Knowledge of safety standards for energy storage batteries. BMS mass-production experience preferred.
• Able to read battery safety standards, and collaborate in English on international projects.
• Experience in algorithm calibration and data analysis across different cell platforms.
• Experience in fault diagnosis or failure-mode analysis is preferred.

Responsibilities

• Own the software architecture, feature development, algorithm iteration, and validation of BMS solutions for residential energy storage.
• Develop and optimize core algorithms for SOC/SOH estimation, cell balancing, thermal management, fault diagnosis, and protection strategies.
• Optimize BMS control strategies for grid-connected and off-grid transitions.
• Monitor cell tech developments and continuously improve BMS algorithms for mass production and field issues.
• Produce BMS design specifications, algorithm docs and test reports; ensure compliance with safety standards.
• Develop calibration and validation plans across cells, temperatures, aging, and operating conditions.
• Establish diagnostic-data, fault-code, and log-analysis methods to accelerate issue resolution.
• Collaborate with cell, pack, hardware, test and system teams to define interfaces and protection thresholds.

Skills

Embedded C

CAN bus

RS485

BMS expertise

Data analysis

English comms

Education

Bachelor's degree or above in automation / electrical engineering / related field

Job description

FranklinWH Energy Storage Inc. seeks a Battery Management Software Expert to own the software architecture and core algorithms for residential energy-storage BMS.

You will drive SOC/SOH estimation, cell balancing, thermal control, safety protection, and field stability across multi-cell packs and hardware interfaces. You will collaborate with hardware, test and system teams, produce design specs and validation reports, and ensure compliance with international safety standards.