Senior Principal Hardware Engineer - Battery Management Systems (BMS)

Job Summary:

The Senior Principal Hardware Engineer – Battery Management Systems (BMS) is the company’s top technical authority in the design, development, and validation of hardware used in high-voltage (HV) automotive battery monitoring. This role drives the definition and implementation of advanced measurement, sensing, and protection electronics used in modern lithium-ion battery packs.

The Senior Principal Hardware Engineer - BMS provides deep domain expertise in high-voltage measurement architecture, cell and pack monitoring circuits, functional safety design, and the hardware aspects of our product design. This position influences product strategy, leads key technical decisions, mentors engineering teams, and ensures the battery monitoring hardware meets world-class standards for safety, reliability, and performance.

Responsibilities:

· Serve as the company’s subject matter expert for hardware in high-voltage automotive battery systems.

· Define system-level and hardware-level architectures for voltage sensing, current measurement, isolation monitoring, temperature monitoring, and pack-level diagnostics.

· Lead the development of high-voltage measurement circuits.

· Establish best-in-class design methodologies for sensing accuracy, noise mitigation, EMC (Electromagnetic Compatibility) robustness, and functional safety compliance.

· Drive detailed circuit design for all BMS monitoring hardware, including HV measurement networks, isolation devices, ADC (Analog to Digital Converter) interfaces, measurement ASICs (Application Specific Integrated Circuit)/AFEs (Analog Front End), balancing elements, and protection circuits.

· Select components, create schematics, and collaborate with PCB (Printed Circuit Board) designers to implement robust high-voltage designs appropriate for harsh automotive environments.

· Develop and validate signal-conditioning circuits to support precise measurement of voltage, current, temperature, and insulation resistance.

· Build, test, and characterize prototypes, ensuring designs meet performance, accuracy, reliability, and safety requirements.

· Ensure monitoring hardware meets ISO 26262 (International Organization for Standardization), UL (Underwriters Laboratories), IEC (International Electrical Commission), and OEM (Original Equipment Manufacturer) safety requirements.

· Lead hardware safety analyses including FMEDA (Failure Modes, Effects, and Diagnostic Analysis), DFMEA (Design Failure Mode and Effects Analysis), WCCA (Worst Case Circuit Analysis), and fault-injection test planning.

· Define safety goals and technical safety requirements related to battery monitoring functions.

· Work closely with systems engineering, software engineering, test engineering, manufacturing, and program management to ensure seamless integration of monitoring hardware into the battery systems.

· Support customer discussions and technical reviews as the primary expert for battery monitoring subsystems.

· Provide technical guidance for supplier selection and hardware strategy.

· Produce clear documentation including electrical specifications, architecture diagrams, design reviews, test plans, and technical reports.

· Lead root-cause analysis and resolution of hardware issues across product programs.

· Stay current on emerging technologies, new measurement techniques, and industry best practices in battery monitoring and automotive HV systems.

· Mentor junior engineers and provide technical leadership across BMS team.

· Adhere to federal and state regulations.

· Adhere to all company policies, processes, and procedures.

· Performs other duties as requested, directed, or assigned.

· Predictable and reliable attendance.

Position Qualifications:

· Bachelor’s degree in Electrical Engineering or related field required.

· Master’s degree preferred.

· Minimum twelve (12) years of experience in automotive or high-voltage hardware development.

· Expert-level knowledge of analog/digital circuit design, ADC-based measurement circuits, and high-voltage sensing techniques.

· Strong understanding of automotive safety standards (ISO 26262), EMC/EMI requirements, and compliance testing.

· Proficiency with hardware development tools such as Altium, Cadence, and SPICE-based simulation environments.

· Experience with PCB layout constraints for high-voltage and low-noise precision measurement.

· Knowledge of embedded systems and C/C++ is a plus.

· Demonstrated ability to guide engineering teams, lead design reviews, and resolve multi-disciplinary technical issues.

· Experience collaborating with global/offshore engineering teams.

· Strong analytical, problem-solving, and communication skills.

Key Competencies:

· Communication: Exchanges thoughts, feelings and information effectively.

· Self-Leadership: Enjoys positions of responsibility and authority. Desires and chooses to be in a leadership position.

· Continual Improvement: Displays a consistent orientation toward producing the highest quality products or services, while keeping a focus on sustainability. Constantly looking for incremental improvements in work processes and results.

· Delivers Results: Achievement oriented, feeling a sense of urgency to reach goals on time, if not before.

· Promoting Teamwork: Facilitating involvement, participation, and assurance of decisions amongst self and others; creating a sense of belonging

· Takes Initiative: Exhibits strong drive for results and success; conveys a sense of urgency and drives issues to closure; persists despite obstacles and opposition.

· Influences Others: Has personal and organizational impact built on mutual trust, fairness, and honesty. Flexes their style to direct, collaborate, or empower, as the situation requires.

Physical Requirements / Working Conditions:

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.

· Prolonged periods sitting at a desk and working on a computer.

· Occasional travel to test facilities, suppliers, and customer sites.

· Constantly operates a computer and other office equipment.

· Ability to adjust focus, especially due to concentration on a computer screen.

· May need to lift and carry up to 30 pounds and/or position the body to reach items on the floor/below knee level or reach overhead.

· The person in this position needs to occasionally move about in industrial environments, and on uneven terrain.

· The noise level in the work environment can be moderately loud.

The above statements are intended to describe the general nature and level of work being performed by employees assigned to this position. They are not to be construed as an exhaustive list of all duties, responsibilities, and skills that may be required of the employee. Management reserves the right to add, remove, or otherwise alter these duties, responsibilities, and skills at any time.