Full-time

Description

Position Summary

The Electrical Battery Engineer III is a senior individual contributor responsible for the electrical design, analysis, and validation of battery cells, modules, and pack-level systems used in high-reliability applications (aerospace, defense, and/or industrial energy storage). This role owns technical decisions across the product lifecycle — from concept through qualification and production support — and serves as a technical resource for less-experienced engineers.

Key Responsibilities

Lead electrical design of battery modules and packs, including cell selection, series/parallel configuration, protection circuitry, and BMS (Battery Management System) integration
Perform electrical analysis: voltage/current distribution, thermal-electrical interactions, impedance, state-of-charge/state-of-health estimation, and failure mode analysis (FMEA)
Develop and execute test plans for electrical performance, safety, and environmental qualification (e.g., abuse testing, overcharge/short circuit, vibration, thermal cycling) in accordance with standards such as MIL-PRF, DO-311, UN 38.3, or UL 1642/2580
Support NDAA/DFARS compliance efforts, including sourcing traceability for cells and components (relevant to defense-focused battery programs)
Collaborate with mechanical, thermal, and systems engineering teams to ensure integrated pack design meets performance, safety, and regulatory requirements
Create and maintain engineering documentation: schematics, wiring diagrams, test reports, and design verification records
Support root cause investigations for field or production issues and implement corrective actions
Interface with customers and suppliers on technical requirements, design reviews, and qualification data
Mentor junior engineers (Engineer I/II) and review their design and test work
Support new product introduction (NPI) and transition of designs from prototype to production

Requirements

Required Qualifications

Bachelor's degree in Electrical Engineering, Electrochemical Engineering, or related Field (Master's preferred)
5–8+ years of experience in battery/energy storage system design, preferably in aerospace, defense, EV, or industrial applications
Strong working knowledge of lithium-ion and/or other advanced cell chemistries
Experience with BMS design/integration, protection circuit design, and electrical safety analysis
Proficiency with circuit development, simulation and analysis tools (e.g., Altium Designer, MATLAB/Simulink)
Familiarity with relevant industry/military standards (MIL-STD-810, DO-160, UN 38.3, UL, IEC 62133)
Strong documentation and technical writing skills
Ability to obtain/maintain a security clearance or meet ITAR/EAR requirements, if applicable

Preferred Qualifications

Experience with NDAA-compliant battery programs and Chinese-cell-component exclusion requirements
Hands-on experience with battery pack manufacturing and laser welding processes
Exposure to both high-voltage and low-voltage battery system architectures
Six Sigma / Lean manufacturing familiarity
Prior experience in a regulated or defense-contracting environment (ITAR/EAR, DFARS)

Physical/Work Environment

Primarily office/lab environment with occasional time on the production floor
Occasional travel for customer meetings, supplier audits, or qualification testing

UEC Electronics

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Electrical Battery Engineer III