Head - BMS & Digital

Harjai Technologies; Valsad District; On-site; INR 4,000,000 - 8,000,000; Full time

Job summary

Harjai Technologies is seeking a Senior BMS Architect to define and execute the multi-year technical roadmap for Battery Management Systems. You will own the stack from embedded firmware to cloud analytics, ensuring safe, production-ready systems.

You will lead teams delivering real-time software, SOC/SOH estimation algorithms, and cloud IoT platforms, while enforcing ISO 26262 and ISO 21434 standards. This role requires strong leadership and cross-functional collaboration.

Qualifications

• Extensive experience in BMS software architecture and embedded systems.
• Proven ability to lead multi-disciplinary teams across firmware, software and cloud.
• Experience with safety-critical software development and standards compliance.

Responsibilities

• Define the BMS software architecture: embedded layer, application software, and cloud interfaces.
• Lead SOC/SOH/SOP/RUL estimation algorithm development using Kalman-filter and ML models.
• Oversee firmware, high-level software, and system integration across pack, PCS and EMS.
• Drive cloud platform and IoT architecture: data ingestion, data lakes, dashboards for analytics.
• Set CIs, testing standards, and validation approaches including HIL/SIL.
• Ensure compliance with ISO 26262/IEC 61508 and ISO 21434 standards.
• Mentor a team of engineers across firmware, software, and cloud domains.

Skills

BMS architecture

Real-time embedded

SOC/SOH algorithms

C/C++ firmware

Python

MATLAB/Simulink

Cloud platforms

CI/CD

Git

IoT protocols

Functional safety ISO26262

Cybersecurity ISO21434

Team leadership

Tools

Git

MATLAB/Simulink

Python

CAN/Modbus/Ethernet

AWS/Azure/GCP

Job description

ROLE OVERVIEW

Set and execute the multi-year technical roadmap for Battery Management Systems — with a sharp focus on software architecture, state-estimation algorithms and digital intelligence. Own the complete BMS stack from embedded firmware through cloud analytics, ensuring safety-certified, production-proven systems.

KEY RESPONSIBILITIES

• Define the BMS software architecture: real-time embedded layer, application software, communication stack (CAN, Modbus, Ethernet) and cloud telemetry interfaces
• Lead development of advanced SOC, SOH, SOP and RUL estimation algorithms using Kalman filters, physics-based and data-driven ML models
• Oversee teams developing firmware, high-level application software and full system integration across pack, PCS and EMS
• Drive cloud platform and IoT architecture: data ingestion, data lakes, dashboards for fleet analytics and predictive maintenance
• Approve HIL and SIL validation strategies for all BMS functions; set code quality, CI/CD and testing standards
• Ensure compliance with functional safety (ISO 26262 / IEC 61508) and cybersecurity (ISO 21434) standards
• Manage and mentor a team of embedded software engineers, algorithm developers and cloud architects

SKILLS & COMPETENCIES

• Deep expertise in embedded systems: RTOS (FreeRTOS, QNX or equivalent), C/C++ firmware and hardware bring-up
• Proven SOC/SOH algorithm development for LFP chemistry — including flat open-circuit voltage curve challenges
• Strong software engineering: Git, CI/CD, automated test frameworks, code review practices
• Proficiency in Python and MATLAB/Simulink for algorithm prototyping and model-based development
• Experience with cloud platforms (AWS / Azure / GCP), IoT protocols and big-data pipelines
• Understanding of functional safety (ISO 26262) and cybersecurity (ISO 21434) for safety-critical software
• Ability to scale and lead engineering teams of 20+ across firmware, software and cloud disciplines