Battery Engineer - Mechanical
Re:Build Manufacturing· Industrial Manufacturing· Jun 26, 2026 · 4mo agoPosted 123 days ago
New Kensington, PA · San Francisco, CA
In office
Full-time
Senior
$137K–$186K est.
6+ years exp
Before you apply
Ghost Signal:
Open since June 26, 2026 — 123 days, and still accepting applications.
Job description
About Re:Build
About Re:Build
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 )
Who we are looking for
You will be responsible for the design and analysis of battery packs and will lead teams of multi-discipline engineers. You will have a direct role in key decision-making to bring to market a portfolio of Re:Build battery packs for many industries. This position will encompass all program cycles including concept design, prototyping, detailed analysis, modeling, drafting, manufacturing, and testing. You will use detailed performance simulations to model critical performance. You will quickly develop CAD and/or prototype models and present quality results to customers and other partners. This position will require you to collaborate between program management, analysis, procurement, and manufacturing teams. To be successful in this role strong presentation and communication skills are a must.
What you get to do
Lead the product design and development for industry changing Re:Build battery packs.
Communicate across engineering teams to make program critical decisions.
Identify core issues, develop solutions, and effectively communicate the impacts across internal and external teams.
Create and deliver CAD models and presentations to customers.
Develop supporting material for design such as bill of materials, assembly, or installation procedures.
Ensure compliance to standards and battery pack performance needs.
Work multi-functionally to verify battery software and hardware meet the system needs and battery pack requirements.
What you bring to the Team
3 or more years of system design for lithium-ion battery packs or related technologies.
Minimum 6 years of engineering experience for automotive, aerospace, industrial or related industries.
Experience in design, developing and testing of battery systems for electrified propulsion or stationary energy storage.
Excellent communication skills (verbal and written), including strong technical communication.
Self-directed with strong leadership, team building, collaboration, organizational skills, and demonstrated problem solving ability.
Demonstrated ability and interest in working in a fast-paced team environment.
Basic understanding of UL, or similar, and regulatory certification processes.
Proficient with CAD programs such as Catia or Solidworks
Familiar with analysis packages such as FEMAP and NASTRAN (or equivalent)
B.S. Mechanical Engineering, Electrical Engineering, Physics or similar with strong emphasis on practical work.
Additional Preferred Qualifications:
M.S. Mechanical Engineering, Electrical Engineering, Physics or similar with strong emphasis on practical work.
4 or more years of project management experience.
Experience with BMS software development and control algorithms.
Experience with mathematical modeling of batteries or experimental work in the field of batteries.
Location: New Kensington, PA or San Francisco, CA
Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.
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 an accommodation due to a disability, you may contact us at accommodations.ta@ReBuildmanufacturing.com or you may call us at 617.909.6275.
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