Technical Lead - Battery Pack Design (BESS)

PeopleStrong; Bengaluru; On-site; INR 4,200,000 - 7,000,000; Full time

Job summary

DEIC-L&T Precision Engineering & Systems IC seeks a Technical Lead to drive end-to-end Battery Pack Design for BESS projects, covering mechanical, electrical and thermal aspects.

The role requires 10+ years in battery pack design, hands-on CAD with SolidWorks/CATIA/Creo, and strong leadership to guide cross-functional teams through design reviews and validation, ensuring safety and IEC/UL compliance.

Qualifications

• 10+ years of experience in battery pack/rack design for energy storage or EV applications.

Responsibilities

• Lead end-to-end design of battery modules and packs, including mechanical, electrical, and thermal aspects.
• Define architecture, module configuration, and enclosure design while ensuring safety and reliability.
• Mentor engineers and lead design reviews with cross-functional teams.

Skills

Leadership

Thermal management

Mechanical design

Education

Bachelor’s / Master’s / PhD in Mechanical / Electrical Engg or Battery Chemistry

Tools

SolidWorks

CATIA

Creo

Job description

Technical Lead - Battery Pack Design (BE...

• DEIC-L&T Precision Engineering & Systems IC

End Date 05 Apr 2027

Required Experience 10 - 14 years

Knowledge & Posting Location

Battery Management Systems Design calculations Standards

Degree In Mech/Marine Engg Master of Engineering (ME)

Job Description

Role OverviewWe are seeking a highly skilled Battery Pack Design Lead to spearhead the design, development, and integration of advanced battery pack and rack systems for Battery Energy Storage Systems (BESS). The ideal candidate will combine deep technical expertise in electro-mechanical design with leadership skills to drive innovation, ensure safety, and deliver scalable solutions for utility-scale and commercial energy storage projectsDesign & DevelopmentLead the end-to-end design of battery modules and packs for BESS applications, including mechanical, electrical, and thermal aspects.Define architecture, module configuration, and enclosure design ensuring compliance with safety, performance, and reliability standards.Develop CAD models, drawings, and BOMs for pack/rack assemblies.Technical LeadershipGuide cross-functional teams (mechanical, electrical, thermal, controls) in design reviews and decision-making.Establish design standards, best practices, and validation protocols.Mentor junior engineers and foster a culture of innovation and collaboration.Safety & ComplianceEnsure designs meet international standards (UL, IEC, IEEE, NFPA, etc.) IEC 62619, UL 1973, UN 38.3, IEC 62620, IEC 61000, IEC 60529, QM 333, IATF 16949, ISO standards. for electrical safety, fire protection, and mechanical integrity.Integrate safety features such as thermal runaway mitigation, fault isolation, and protective housings.Integration & TestingCollaborate with system engineers to integrate packs into overall BESS solutions.Oversee prototype builds, validation testing, and qualification processes.Troubleshoot design issues and implement corrective actions.Project ManagementManage design timelines, deliverables, and resource allocation.Coordinate with suppliers and manufacturing partners for component sourcing and production readiness.Support cost optimization and scalability for mass deploymentKnowledge and connect with the relevant vendors and subcontractors for all the design support activities such as mechanical fabrication, Laser welding etcRequired QualificationsBachelor’s / Master’s/ PhD degree in Mechanical Engineering, Electrical Engineering, Battery Chemistry or related field.10+ years of experience in battery pack/rack design, preferably in energy storage or EV applications.Strong expertise in:CAD tools (SolidWorks, CATIA, Creo, etc.)Thermal management systems (air/liquid cooling)Structural design and materials selectionElectrical integration (busbars, connectors, fuses, BMS interfaces)Proven track record of leading design teams and delivering complex projects.Knowledge of industry standards and certification processes for BESS.