Senior BMS Cell Algorithm Design Engineer, Battery Pack Design and Architecture

Proterra; Greer (SC); On-site; USD 80,000 - 100,000; Full time

Job summary

Proterra is seeking an Embedded Systems Engineer for their team in Greer, SC. In this role, you will be responsible for developing battery pack power electronics controls and ensuring compliance with safety and regulatory standards.

The ideal candidate will have strong experience in BMS controls modeling/design, proficiency in MATLAB/Simulink, and understanding of Lithium-ion chemistry. Additional skills in problem-solving and project management will be advantageous. This is an onsite role with limited travel requirements.

Qualifications

• Bachelor's with 5+ years or Master’s with 3+ years of industry experience in BMS controls modeling/design.
• Strong understanding of Lithium-ion chemistry and BMS communication protocols.
• Experience in battery cell testing is a plus.

Responsibilities

• Design and maintain high quality cell control algorithms.
• Support integration of code into BMS controls.
• Develop technical project plans and schedules.

Skills

MATLAB/Simulink

Embedded C/C++

BMS development

Control theory

Problem-solving skills

Education

Degree in Electrical Engineering, Chemical/Electrochemistry Engineering, Mechatronics, Control Systems or related field

Tools

Vector tools (CANalyzer, CANape)

GIT

Job description

Position Overview

The Embedded System team is responsible for defining, designing, and testing battery pack power electronics controls features and functions for all Proterra products. It is also responsible for maintaining and supporting current production programs to provide design-focused support and technical issue resolution.

About the Role – You will:

As a member of this engineering team, you will work in an engineering support role who is responsible for driving the cell algorithm controls design, cell limits on embedded subsystem architecture, design documentation, and working with manufacturing engineering to design cell quality metrics to ensure that we follow entire product development cycle. This role combines deep electrochemical characterization and controls engineering expertise with strong systems thinking, cross-functional leadership, and a drive for innovation and product excellence. You will be the component manager for BMS application layer/cell integration and support controls designs from the concept through production, ensuring compliance with safety, regulatory, thermal, vibration, structural, and manufacturability requirements.

• Design and maintain high quality cell controls algorithms (including SOC, SOH, thermal controls, and power limits)
• Develop and maintain and validate cell models, enabling using experimental parameters and field data to further optimize performance
• Support integration of code into BMS controls to implement on a pack or system level
• Support and own cell centric requirements for feature algorithms around cell monitoring, diagnostics, performance, thermal management, and safety.
• Participate in detailed DFMEA and DVP&R documentation creation
• Responsible for the development of technical project plans and schedules covering engineering activities, meeting all design control and product development SOP requirements
• Support the transition of designs from prototype to high-volume manufacturing, focusing on Design for Manufacturing (DFM) and Design for Assembly (DFA)
• Maintain design documentation and facilitate design reviews

Your Experience Includes:

• Degree in Electrical Engineering, Chemical/Electrochemistry Engineering, Mechatronics, Control Systems or related field; bachelor’s with 5+ years OR Master’s with 3+ industry experience in BMS controls modeling/design
• Strong Proficiency in MATLAB/Simulink and or Embedded C/C++
• Experience in BMS development, cell modeling, or battery cell testing
• Strong understanding of Lithium-ion and chemistry, control theory, and BMS communication protocols (CAN, UDS)
• Experience with Vector tools (CANalyzer, CANape), revision control repositories (GIT)
• Strong background with DFMEA, PFMEA, FTTI, etc.
• Strong problem-solving skills and the ability to perform root cause analysis

Additional Desired Skills:

• Prior experience in high voltage battery systems, energy storage or EV industry
• Deep knowledge of battery electrical components (cells, modules, current collectors, busbars, module too pack integration etc)
• Knowledge of manufacturing test processes unique to battery pack construction (e.g., capacity testing, broken weld detection, etc.) a bonus but not required
• Knowledge of other cell chemistries (LFP, NMC)
• Knowledge of safety critical standards ISO 26262 and ASPICE

Location: Onsite role in Greer, SC
Travel: < 15% Travel

Proterra is an Equal Employment Opportunity Employer, providing equal employment opportunities to all Employees and applicants for employment without regard to race, color, creed, religion, sex, sexual orientation, gender identity, national origin, disability, age, genetic information, veteran status, pregnancy, childbirth, or related medical conditions, including, but not limited to, lactation or any other characteristic protected by applicable federal, state, or local law or ordinance. Proterra participates in the Electronic Employment Verification Program (E-Verify).