Battery Software Engineer I — BMS & EV Diagnostics

Polluxa, Inc.

Irvine (CA)

On-site

USD 75,000 - 105,000

Full time

6 days ago

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Job summary

Polluxa, Inc. in Irvine, CA is seeking an Engineer I - Battery Software to support the design, development, integration, and validation of battery management system (BMS) application software for electric and hybrid vehicle programs, under guidance from senior engineers.

You will contribute to software requirements, model-based development, diagnostics, safety mechanisms, calibration, testing, and release documentation while collaborating with systems, hardware, validation, and vehicle teams.

Qualifications

Bachelor’s degree in Control Systems, Electrical Engineering, Mechanical Engineering, Computer Science, or related field.
0-2 years of relevant experience in embedded software, controls, batteries, or related area.
Foundational knowledge of model-based software development using MATLAB/Simulink.
Basic understanding of embedded software development, debugging, and verification methods.
Basic knowledge of high-voltage battery systems or BMS functions.
Familiarity with CAN communication protocols and automotive tools.
Exposure to MIL/SIL/HIL testing or equivalent.
Ability to analyze data, troubleshoot, and document results clearly.
Ability to work cross-functionally and manage tasks to schedule.

Responsibilities

Implement and maintain BMS functions for battery state monitoring, control, protection, diagnostics, and communication based on software requirements.
Create test cases and execute unit, integration, bench, HIL, and in-vehicle tests; document results and track issues to closure.
Support the implementation and verification of software safety mechanisms derived from functional safety requirements.
Analyze test data and software defects, identify likely root causes, and work with senior engineers and cross-functional partners on corrective actions.
Support BMS diagnostics and CAN communication development, including signal validation and fault handling.
Use version-control, issue-tracking, build, flashing, and calibration tools in accordance with team processes.
Collaborate with battery hardware, vehicle integration, functional safety, and cybersecurity teams.
Contribute to process improvement, tool development, technical documentation, and team knowledge sharing.
Perform other duties, as assigned.