Senior Battery Engineer

Re:Build Manufacturing; San Francisco (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

Re:Build Manufacturing is seeking an Electrical Engineer to design and develop advanced lithium-ion battery systems. You will define system architecture, create electrical schematics, select and integrate hardware, and perform thermal analyses to ensure safe, high-performance modules for automotive, aerospace, and industrial applications.

You will work cross-functionally with mechanical, software, and manufacturing teams from concept through prototype, validation, and launch, conveying complex

Qualifications

• Bachelor of Science in Electrical Engineering required.
• 3+ years of system-level design for lithium-ion battery packs or related electrical systems.
• 4+ years of engineering experience in automotive, aerospace, industrial, or related sectors.

Responsibilities

• Define system architecture for lithium-ion battery packs and modules.
• Create electrical schematics for battery systems and control electronics.
• Select and integrate electronics hardware including sensors, power electronics, and microcontrollers.
• Perform thermal and power dissipation analyses to ensure reliability.
• Contribute to circuit design, validation, and bench testing.
• Support safety and functional safety compliance (ISO 26262 or equivalent).
• Collaborate with mechanical, software, program management, and manufacturing teams.
• Develop validation test plans, analyze data, and troubleshoot electrical issues.
• Communicate results with customers, suppliers, and leadership.

Skills

Electrical system design

Schematic capture

Thermal management

High-voltage safety

EMC/EMI

Cross-functional collaboration

Analytical problem solving

Technical communication

Education

Bachelor of Science in Electrical Engineering

MS/PhD in Electrical Engineering (preferred)

Tools

Battery management systems (BMS)

Embedded electronics

Circuit simulation tools

Schematic design tools

Job description

Re:Build Manufacturing, LLC (Re:Build) is a rapidly growing family of industrial businesses combining enabling technologies, operational superiority, and strategic M&A to build America’s next generation industrial company. At Re:Build we deploy deep expertise in operations management and technology to supercharge performance of our subsidiaries by implementing core technologies across industrial platforms in diverse growth markets. Our goal is to help revitalize the U.S. manufacturing base over the coming decades, creating substantial opportunities for our employees and the communities where we operate.

We leverage deep professional expertise and a candid, principled operating culture to drive differentiated outcomes for our customers, our employees, our communities and our investors. Ours is a fast-paced environment where individuals can stretch and be challenged with a wide variety of opportunities and projects. We empower and support our employees to pursue their fullest potential and provide meaningful avenues for personal and professional growth.

Who is Re:Build Manufacturing

Re:Build Manufacturing, LLC (Re:Build) is a rapidly growing family of industrial businesses combining enabling technologies, operational superiority, and strategic M&A to build America’s next generation industrial company. At Re:Build we deploy deep expertise in operations management and technology to supercharge performance of our subsidiaries by implementing core technologies across industrial platforms in diverse growth markets. Our goal is to help revitalize the U.S. manufacturing base over the coming decades, creating substantial opportunities for our employees and the communities where we operate.

We leverage deep professional expertise and a candid, principled operating culture to drive differentiated outcomes for our customers, our employees, our communities and our investors. Ours is a fast-paced environment where individuals can stretch and be challenged with a wide variety of opportunities and projects. We empower and support our employees to pursue their fullest potential and provide meaningful avenues for personal and professional growth.

About Re:Build Battery Solutions

Re:Build Battery Solutions is a turnkey battery provider focused on the design, development and manufacturing of durable, high-quality battery packs for motive and stationary energy storage applications. We also offer custom and off-the-shelf battery management systems (BMS) and we design and build battery process lines. We are committed to strengthening the US battery value chain by providing reliable, cost-effective, domestic technology solutions and exceptional customer service. Re:Build Battery Solutions is part of Re:Build Manufacturing, a family of industrial businesses combining cutting-edge enabling technologies, operational superiority, and strategic M&A to build America’s next-generation industrial company.

Who we are looking for

As an Electrical Engineer at Re:Build, you will play a pivotal role in the design and development of advanced lithium-ion battery systems. You will be responsible for defining system architecture, creating electrical schematics, selecting and integrating electronics hardware, and performing critical thermal and power dissipation analyses. Your expertise will directly influence key technical decisions that enable Re:Build to deliver safe, high-performance battery modules and packs across automotive, aerospace, renewable energy, and industrial applications.

You will support all phases of the program lifecycle — from concept design through prototyping, validation, and launch — working cross-functionally with mechanical, software, and manufacturing teams. Success in this role requires strong technical fundamentals, excellent analytical and problem-solving skills, and the ability to clearly communicate complex technical concepts to both internal and external stakeholders.

What you get to do

• Develop Electrical System Architecture: Define and document high- and low-voltage distribution, interfaces, and protection systems for battery packs.
• Create Electrical Schematics: Own the schematic design of battery pack systems, including sensors, contactors, fuses, connectors, harnesses, and control electronics.
• Select and Integrate Electronics Hardware: Evaluate and specify components such as current sensors, power electronics, microcontrollers, and supporting hardware for safety, performance, and manufacturability.
• Perform Thermal & Power Dissipation Analysis: Conduct hardware heating and power dissipation calculations to ensure reliable operation across environmental and load conditions.
• Support Circuit Design & Validation: Contribute to the design, simulation, and bench testing of circuits for measurement, control, and protection.
• Ensure Safety & Compliance: Support DFMEA, functional safety (ISO 26262 or equivalent), and industry compliance requirements, including UL.
• Collaborate Across Functions: Partner with mechanical, software, program management, and manufacturing teams to integrate electrical design into robust and manufacturable products.
• Test & Debug: Develop validation test plans, analyze data, and troubleshoot electrical issues.
• Communicate Results: Prepare and present technical findings and recommendations to customers, suppliers, and internal leadership.

What you bring to the team

• 3+ years of experience in system-level design for lithium-ion battery packs or related electrical systems.
• 4+ years of engineering experience in automotive, aerospace, industrial, or related sectors.
• Strong proficiency in electrical system design and schematic capture.
• Knowledge of electronics hardware thermal management and power dissipation analysis.
• Experience with component selection and integration for high-voltage and low-voltage systems.
• Familiarity with high-voltage safety standards, EMC/EMI practices, and grounding/shielding.
• Excellent verbal and written communication skills, with the ability to explain complex technical issues clearly.
• Strong problem-solving skills and demonstrated ability to work in fast-paced, cross-functional environments.
• Bachelor of Science in Electrical Engineering (or related discipline) with strong emphasis on practical application and systems design.

Additional Preferred Qualifications

• M.S. or Ph.D. in Electrical Engineering or related discipline.
• Hands-on experience with battery management systems (BMS), control algorithms, or embedded electronics.
• Background in functional safety (ISO 26262) or equivalent standards.
• Experience with project leadership or cross-functional technical coordination.
• Familiarity with mathematical modeling of batteries and/or experimental validation methods.

Location Requirement

Position is based out of our Pittsburgh PA plant.

The BIG payoff

We are a company who is going to make a difference in the industries and the communities in which we choose to operate.

Every employee of Re:Build will share ownership in the company and will share in the financial rewards of the success we achieve together, at all levels of the company!

We want to work with people that reflect the communities in which we operate

Re:Build Manufacturing is proud to be an Equal Employment Opportunity and Aff¬inative Action employer. We do not discriminate based upon race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, marital status, parental status, cultural background, organizational level, work styles, tenure and life experiences. Or for any other reason.

Re:Build is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or accommodation due to a disability, you may contact us at [e-mail] or you may call us at 617.909.6275.