Battery Design Engineer

Position Overview

The Battery Design Engineer is responsible for ensuring the technical integrity, safety, and cost-effectiveness of battery systems across Electric Vehicle (EV) and Battery Energy Storage System (BESS) projects. This includes pre-sales engineering, design verification, OEM monitoring, operational readiness, and after-sales technical support. The role serves as a key technical auditor and advisor to ensure the execution aligns with strategic business and engineering goals.

Key Responsibilities

A. EV (Electric Vehicle) Business Support

• Review, evaluate, and audit OEM battery system designs to ensure compliance with internal standards and safety regulations.

• Support the Head of EV by acting as technical coordinator/project monitor across OEM partnerships, ensuring engineering consistency across product design, integration, and testing.

• Validate design specifications for pack configuration, battery management systems (BMS), and thermal management aligned with intended vehicle use cases.

• Participate in system testing, factory inspections (FAT), and integration assessments pre-delivery.

• Monitor and document OEM compliance with agreed specs and timelines; raise risk flags to the Business Owner.

B. BESS (Battery Energy Storage System) Business Support

• Lead the design and engineering optimization of battery systems, ensuring efficient use of space, cable sizing, and Balance of System (BoS) integration.

• Work closely with the Head of BESS to design cost-effective, scalable energy storage systems that align with project and customer needs.

• Evaluate and standardize technical design packages including single line diagrams, layout plans, component lists, and interconnection drawings.

• Conduct site readiness assessments and support technical clarifications during procurement and construction phases.