Battery Management Systems Engineer

BMS Support engineer California Onsite Role Summary You will develop and deliver battery management system (BMS) application software in MATLAB/Simulink and Stateflow for a 400 V high-voltage battery program. The work follows a full model-based design (MBD) path including: Production C from Embedded Coder. AUTOSAR Classic software components and RTE integration. ARXML import and export. Verification from Model-in-the-Loop (MiL) through SIL and HIL. Requirements traceability and verification aligned to

ISO 26262

expectations.

Key Responsibilities BMS Logic Design:

Design and maintain application logic including operating modes, limits, fault handling, and interfaces for charging and thermal management.

Embedded Coder Workflow:

Own the code mappings, data types, fixed-point, and clean integration of generated code with the

RTE. AUTOSAR

Integration:

Work with software components, ports, runnables, and RTE contracts. Coordinate with base software owners on COM stack, diagnostics, and OS scheduling.

Traceability:

Maintain requirements traceability using ALM tools like DOORS, Polarion, or Jama. Link requirements to model elements and test results for functional safety audits.

Verification:

Plan and execute MiL, SIL, and support PIL/HIL testing using Simulink Test. Apply modeling quality practices using Model Advisor, Simulink Check, and Polyspace.

Calibration & Systems:

Manage calibration data through Simulink Data Dictionary and support interface control documents (DBC) and timing budgets. Requirements (Qualifications)

Education:

Bachelor's or Master's degree in Electrical, Computer, Software Engineering, Controls, or a related field.

Experience:

At least four years of professional experience building automotive embedded software in Simulink and Stateflow on production-intent programs.

MBD Skills:

Hands-on experience with Embedded Coder and AUTOSAR code generation workflows.

AUTOSAR Knowledge:

Solid understanding of AUTOSAR Classic at the application layer.

Testing:

Experience with requirements-based testing (MiL/SIL) and hands-on exposure to PIL or HIL. Comfort with back-to-back testing and coverage concepts.

Coding & Standards:

Strong C programming skills for integration and debugging. Practical familiarity with

ISO 26262

Part 6 software lifecycle activities.

Tools:

Working knowledge of CAN-based vehicle communication and Git. Bonus Qualifications Prior BMS or 400 V class traction system experience. Exposure to AUTOSAR Adaptive or TargetLink. Experience with SPI, UDS, and OEM diagnostic workflows. Proficiency with Vector CANoe/CANalyzer and CAPL scripting. Deep experience with Simulink Coverage, Simulink Check, or Simulink Design Verifier. Continuous Integration (CI) experience (Jenkins, GitLab CI) with MATLAB-based tests.

Pay:

$96,143.91 - $105,786.22 per year

Benefits:

401(k) matching Dental insurance Health insurance Paid time off Relocation assistance Vision insurance

Experience:

automotive embedded software in

Simulink and Stateflow:

4 years (Required) AUTOSAR code generation workflows: 4 years (Required)

Work Location:

In person