Job Description – Proto/Pilot Senior Manager (Mechanical & Electrical) – BESS
Role Summary
The Proto/Pilot Senior Manager – Mechanical & Electrical (BESS) will lead prototype development, pilot production, mechanical and electrical integration, validation support, and manufacturing readiness for Battery Energy Storage System (BESS) products at a 5 GWh / 6.25 GWh manufacturing facility.
The role will act as a critical bridge between Engineering, Validation, Quality, Supply Chain, and Manufacturing to ensure successful transition from prototype development to pilot production and scalable mass manufacturing.
Key Job Responsibilities
Prototype & Pilot Build Leadership
Lead end-to-end prototype and pilot build activities for BESS products.
Manage engineering builds, design validation builds, pre-production builds, and pilot production builds.
Develop and execute prototype build plans, schedules, resource requirements, and milestones.
Drive rapid problem-solving and design iterations during prototype and pilot stages.
Ensure prototype builds are completed within defined timelines,



quality, safety, and cost targets.
Lead teams of engineers, technicians, and manufacturing personnel involved in prototype and pilot builds.
Mechanical Prototype & System Integration
Lead mechanical integration of battery modules, packs, racks, enclosures, and containerized BESS systems.
Oversee assembly of structural frames, battery housings, cooling systems, mechanical interfaces, and related components.
Identify and resolve mechanical fitment, tolerance, interference, fastening, sealing, and structural issues.
Ensure proper mechanical integration across the complete BESS architecture.
Support thermal and cooling system integration, including interfaces between mechanical and thermal components.
Drive Design for Manufacturability (DFM) and Design for Assembly (DFA) improvements.
Work with mechanical design teams to incorporate prototype and pilot build learnings into future product revisions.

📌 Proto Pilot Mechanical/Electrical (Chennai)
🏢 VSL PowerHive
📍 Chennai