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

Proterra offers a dynamic and supportive workplace where our employees can thrive personally and professionally. With cutting-edge facilities and groundbreaking projects, Proterra offers unique opportunities to grow, collaborate, and lead transformative changes in the electrification of heavy-duty transportation and equipment.Our commitment to innovation extends beyond our battery solutions to our people, where we create an environment where everyone feels valued, supported, and empowered to drive change for the earth. Here at Proterra we strive to foster a culture of inclusivity, valuing diverse perspectives and encouraging bold ideas, allowing our employees to bring their full selves to work. Our employees benefit from competitive total rewards packages, and opportunities to develop professionally.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.As a member of this engineering team, you will work in 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.About the Role – You will: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 performanceSupport integration of code into BMS controls to implement on a pack or system levelSupport 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 creationResponsible for the development of technical project plans and schedules covering engineering activities, meeting all design control and product development SOP requirementsSupport 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 reviewsYour 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/designStrong Proficiency in MATLAB/Simulink and or Embedded C/C++Experience in BMS development, cell modeling, or battery cell testingStrong 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 analysisAdditional 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 requiredKnowledge of other cell chemistries (LFP, NMC) Knowledge of safety critical standards ISO 26262 and ASPICEDesigned and assembled in the United States, Proterra’s innovative battery platform offers industry-leading energy density, durability, performance and safety systems – enabling Proterra EV batteries to be the premium choice for commercial vehicles and industrial equipment.Proterra’s battery technology offers industry-leading energy density, safety systems, and durability. Proudly designed in Silicon Valley and assembled in Greer, South Carolina, Proterra® batteries are the premier choice to electrify commercial vehicles ranging from buses and trucks to construction equipment and more. Proterra is building innovative battery technology to power a better, more sustainable world.Location: Onsite role in Greer, SCTravel: < 15% TravelApplicants must be authorized to work for any employer in the U.S. There is no immigration sponsorship available for this role (ex: H1-B, OPT, CPT, TN or any other employment sponsorship).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).LI-BJ1Job SummaryRequisition Number: SENIO004229Job Category: EngineeringSchedule: Full-Time