Director of Engineering

At Re:Build, our mission is to ensure the next generation of important products are made, at scale, in America. We are laying the foundation for a better future for our customers, employees, and communities by revitalizing America's manufacturing base and creating meaningful jobs across the country, including in historically deindustrialized regions.

We operate an advanced, end-to-end manufacturing platform that partners with industrial companies and innovators to take products from first concept to full-scale production in critical verticals including aerospace and defense, electrification, medical, energy and environment, and robotics and automation.

The way we operate is as important as the work we do. It's guided by The Re:Build Way, 16 principles that shape how we collaborate with each other, partner with our customers and vendors, and contribute to the communities where we operate. (link to The Re:Build Way principles)

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 the Director of Engineering for Battery Pack Systems at Re:Build Battery Solutions, you will set the vision and lead the technical direction for our battery pack design and development efforts. You will be accountable for ensuring that Re:Build delivers world-class lithium-ion battery modules and packs that meet the performance, safety, and reliability standards required across automotive, aerospace, renewable energy, and industrial sectors.

This senior leadership role combines deep technical expertise with strategic leadership. You will guide a team of engineers through all phases of development — from concept design to manufacturing launch — while also serving as a key decision-maker in multi-functional program discussions. Your leadership will influence technology roadmaps, customer engagements, and the execution of complex, high-value programs.

Success in this role requires a strong foundation in battery pack engineering — whether from an electrical or mechanical background — combined with proven leadership of high-performing technical teams and the ability to effectively engage with customers, suppliers, and Re:Build executives to drive innovation and deliver results.

What you get to do

• Lead Technical Direction: Set and drive the engineering strategy for Re:Build’s battery pack programs, ensuring technical excellence and alignment with business objectives.
• Team Leadership & Development: Build, mentor, and develop a cross-disciplinary team of engineers (mechanical, electrical, systems). Foster a collaborative culture that encourages innovation, accountability, and continuous improvement.
• Program Ownership: Oversee the design and development of lithium-ion battery packs and modules across multiple programs and industries. Ensure projects are delivered on time, within budget, and to specification.
• Cross-Functional Leadership: Collaborate with program management, procurement, manufacturing, thermal/mechanical engineering, electrical/BMS teams, and software groups to deliver integrated battery solutions.
• Customer & Executive Engagement: Represent Re:Build in technical discussions with customers and business partners. Present high-quality technical results, design reviews, and recommendations to senior team members.
• Innovation & Technology Roadmapping: Stay ahead of emerging technologies and regulatory requirements. Guide adoption of new tools, processes, and materials that enhance performance, safety, and manufacturability.
• Compliance & Standards: Ensure all battery designs comply with applicable industry standards, certifications, and safety regulations (UL, ISO, SAE, IEC, etc.).
• Change & Risk Management: Anticipate technical risks and develop mitigation strategies. Lead the engineering response to organizational changes such as acquisitions or program pivots.
• Operational Excellence: Oversee development of supporting materials (BOMs, assembly procedures, installation guides) and ensure quality engineering documentation.

What you bring to the Team

• Bachelor’s degree in Mechanical Engineering, Electrical Engineering, or related discipline (required); Master’s or Ph.D. preferred, with 10+ years of experience in engineering with a strong focus on lithium-ion battery pack or related systems.
• 5+ years of technical leadership or management experience, including building and developing engineering teams.
• Proven track record of leading the design, development, and testing of battery systems for electrified propulsion or stationary storage.
• Deep knowledge of battery pack architecture, design principles, and system integration (mechanical, electrical, thermal, and BMS).
• Proficiency with engineering tools (CAD such as CATIA or SolidWorks, electrical layout/analysis software, or equivalent).
• Familiarity with regulatory standards (UL, IEC, ISO, SAE) and certification processes.
• Strong ability to set vision, align teams, and drive execution.
• Exceptional communication skills (verbal, written, presentation) with ability to convey complex technical information to executives, customers, and cross-functional teams.
• Demonstrated success in managing change, risk, and competing priorities in fast-paced environments.
• Experience with BMS software and control algorithms, and/or advanced thermal/mechanical battery pack design.
• Background in mathematical modeling, simulation, or advanced battery testing.
• Project/program management certification or equivalent experience.

Location Requirement

Note the Re:Build Battery Solutions team is based at our New Kensington, PA location and works 100% on site.

The base salary range for this position is $134,000 – $200,000 per year. This range represents the Company’s good faith estimate of the base compensation for this role at the time of posting. Actual compensation will be determined based on several factors, including but not limited to relevant experience, skills, qualifications, internal equity, and geographic location. In addition to base salary, this role may be eligible for annual incentive compensation and/or long-term incentives, subject to Company plans. The Company offers a comprehensive benefits package including medical, dental, vision, retirement, paid time off, and other benefits.

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 Affirmative 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 accommodations.ta@ReBuildmanufacturing.com or you may call us at 617.909.6275.