Bala Subrahmanyam

Product Development Engineer with over 7 years of hands-on experience in the automotive industry, specializing in 12V power supply systems and components, including batteries, alternators, and starter motors. Demonstrated expertise in new product development, validation and testing, supplier management, field failure analysis, and cross-functional collaboration.

Product Development Engineer at Renault Nissan Technology Business Center India (2022-01 – Present)

• Ensured compliance with destination-specific regulatory requirements and Nissan internal engineering standards.
• Developed EFB battery systems, including thermal protection and mounting solutions, aligned with vehicle packaging and performance requirements.
• Provided prototype build support, enabling rapid issue resolution and timely solution adoption.
• Conducted battery and alternator charge/discharge balance studies, startability analysis, dark current consumption evaluation, and battery thermal life studies.
• Achieved 100% on-time delivery for all assigned project milestones.
• Supported carline modifications, including adoption and validation of child parts.
• Performed part specification studies and development of battery, alternator, and starter motor for new projects involving minor events and new electrical architectures.
• Analyzed vehicle electrical systems and CAN communication using CANalyzer for diagnostics and validation.
• Studying on the CR activities like right sizing, VAVE, localization, commonization, monozukuri, material change and restudy of component structure.
• Spearheaded the development of 12V EFB battery, battery thermal cover and holding brackets for the Nissan Magnite across LHD and RHD global platforms.
• Led localization of 12V battery sourcing in Egypt (Chloride Batteries) to support Nissan Egypt plant production, including on-site supplier readiness assessment and prototype build support.
• Development of 110A alternator from concept stage to proto build.

Assistant Engineer - Product Development, Automotive LAB Division at Amara Raja Batteries Limited (2018-01 – 2022-12)

• Contributed to research on carbon-based additives to meet Maruti Suzuki's Dynamic Charge Acceptance (DCA) requirements, including prototype build support.
• Successfully introduced two EFB battery models for the export market, ensuring compliance with performance and quality standards.
• Developed in-house battery subcomponents, including injection-molded casings, to support cost and design optimization.
• Validated automotive AGM battery production processes, ensuring manufacturability and quality readiness.
• Supported implementation of stamped grid technology and conducted early failure analysis to improve product reliability.
• Maintained accurate Bills of Materials (BOMs) and ensured timely drawing circulation across cross-functional teams (CFTs).
• Performed junk bin analysis of field-return batteries, identifying failure modes and supporting root cause analysis and corrective actions.

B.Tech in Engineering technology – BITS Pilani (2025-07 – 2028-12)

Diploma in Mechanical Engineering – Kallam Haranadha Reddy Institute of Technology (2018)

SSC-Secondary School Certificate – Sri Sai Vidya Niketan (2015)