Battery System Engineer

Career Area:
Engineering

Job Description:

Your Work Shapes the World at Caterpillar Inc.

When you join Caterpillar, you're joining a global team who cares not just about the work we do – but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here – we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.

PF Battery System Engineer

Position Title

Battery System Engineer

Location

Wuxi, China

Job Summary

The PF Battery Engineer will be responsible for the engineering development, integration, validation, and continuous improvement of PF (Purchased Finished) Battery systems for Caterpillar electrification products.

This role serves as the primary technical interface between battery suppliers and machine development teams, ensuring battery solutions meet application requirements for performance, safety, reliability, durability, manufacturability, and cost.

The engineer will work closely with global battery teams, ePowertrain system engineers, software teams, validation teams, machine integration engineers, and battery suppliers to successfully deliver battery products for electrified construction and mining equipment.

Key Responsibilities

Battery Product Development

Lead PF battery engineering activities from concept through production implementation.

Define battery system technical requirements based on machine application needs.

Manage technical development and issue resolution with battery suppliers.

Support battery architecture evaluation, benchmarking, supplier selection, and technical assessments.

Review battery design documentation, specifications, DFMEA, DVP&R, test reports, and production readiness.

Battery System Integration

Support integration of battery systems into machine platforms.

Collaborate with machine integration project team leaders on packaging, mounting, cooling, HV routing, and serviceability.

Evaluate battery interfaces including:

Electrical

Mechanical

Thermal

Communication

Functional Safety

Ensure compatibility between battery, inverter, charger, motor, and machine control systems.

Battery Validation & Testing

Develop battery validation plans and test strategies.

Review supplier validation activities and test results.

Support:

Functional testing

Environmental testing

Thermal performance testing

Durability testing

Abuse testing

Vehicle/Machine-level validation

Lead root cause analysis and corrective actions for battery-related issues.

Supplier Technical Leadership

Serve as the primary engineering focal point for PF battery suppliers.

Conduct technical design reviews with suppliers.

Drive issue resolution and risk mitigation.

Monitor supplier development progress, technical maturity, and readiness.

Support APQP, PPAP, and production launch activities.

Battery Performance & Optimization

Evaluate battery performance including:

Energy capacity

Power capability

Charging performance

Thermal behavior

Efficiency

Aging characteristics

Drive continuous improvement in:

Cost

Reliability

Performance

Manufacturability

Cross-Functional Collaboration

Work closely with:

Battery System Team

BMS Engineering

Power Electronics Team

Controls & Software Team

Machine Integration Team

Validation Team

Procurement Team

Product Support Team

External Battery Suppliers

to ensure successful delivery of electrification programs.

Required Qualifications

Education

Bachelor's degree or above in:

Electrical Engineering

Electrochemical Engineering

Mechanical Engineering

Energy Storage

Automotive Engineering

Related Engineering Discipline

Experience

5+ years of battery engineering experience.

Experience developing lithium-ion battery systems.

Experience with supplier-managed battery products preferred.

Experience in automotive, commercial vehicle, construction equipment, mining equipment, or energy storage industries preferred.

Technical Skills

Strong understanding of:

Lithium-ion battery technology

Battery pack architecture

Cell/module/pack design

Battery thermal management

Battery safety requirements

Battery degradation mechanisms

High-voltage systems

Battery testing and validation

Experience with:

CAN communication

Battery diagnostics

BMS fundamentals

DFMEA/PFMEA

APQP / PPAP

Root Cause Analysis

System engineering processes

Knowledge of standards:

ISO 26262

IEC 62619

UL 2580

GB/T battery standards

UN38.3

Preferred Qualifications

Experience working directly with battery suppliers such as CATL, BYD/FinDreams, Sunwoda, EVE, Ganfeng, etc.

Experience with off-highway electrification applications.

Experience supporting battery sourcing and localization projects.

Experience with machine-level electrification programs.

Familiarity with charging systems and HV architecture.

Key Competencies

Strong technical leadership

Systems thinking

Problem solving and root cause analysis

Supplier management

Cross-functional collaboration

Effective communication in English and Chinese

Ability to manage multiple projects simultaneously

Posting Dates:
October 12, 2026 - October 29, 2026

Caterpillar is an Equal Opportunity Employer. Qualified applicants of any age are encouraged to apply

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