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Proterra

Staff Mechanical Design Engineer, Battery Pack Design and Architecture

Proterra, Greer, South Carolina, United States, 29651

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Staff Mechanical Design Engineer, Battery Pack Design and Architecture Job Category : Engineering

Requisition Number : STAFF004198

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Posted : January 5, 2026

Full-Time

On-site

Locations Showing 1 location

Greer, SC 29651, USA

Description Proterra offers a dynamic and supportive workplace where our employees can thrive personally and professionally. Withcutting-edgefacilities and groundbreaking projects, Proterra offers unique opportunities to grow, collaborate, andleadtransformativechangesin 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 fullselvesto work. Our employeesbenefitfrom competitive total rewards packages, and opportunities to develop professionally.

Position Overview:

The product development teamis responsible fordesigning battery pack modules and system enclosures that define the direction of our future products. Itis also responsible formaintainingand supportingcurrent productionprograms toprovide design-focused support and technical issue resolution.

As a member of this engineering team, you will work ina leadrole whois responsible fordriving the mechanical design, system architecture, structural integrity,design documentation, manufacturabilityof battery packsto ensure that we follow entire product development cycle till successful launch. This role combines deep mechanical engineeringexpertisewith strong systems thinking, cross-functional leadership, and a drive for innovation and product excellence. You will be thecomponentmanager from the concept through production, ensuring compliance with safety, regulatory, thermal, vibration, structural, and manufacturability requirements.

About the Role – You will:

Design high quality mechanical and electromechanical part and assembly designs efficiently and with good modeling practices

Develop cost effective,innovativeand weight-optimized structural solutions to meet thermal, NVH, and crash safety requirements

Create and manage detailed engineering drawings/design data (3D and 2D), utilizing Catia 3DExperience (3DX) by applying a high standard of Geometric Dimensioning and Tolerancing (GD&T)

Responsible for the development of technical project plans and schedules covering engineering activities, meeting all design control and product development SOP requirements

Support the transition of designs from prototype to high-volume manufacturing, focusing on Design for Manufacturing (DFM) and Design for Assembly (DFA)

Mentor junior engineers and serve as a subject expert within the mechanical engineering team

Your Experience Includes :

Degree in Mechanical Engineering or related field;Bachelor’swith 10+ years ORMaster’swith 8+ industry experience in mechanical design

Proficient in 3D CAD design and 2D drafting (includingGD&Tand Datum structuring) of mechanical components (CATIA experience is preferred)

Knowledgeable in high and low volume manufacturing methods, especially in aluminum casting, extrusion, stamping, forging, injectionmoldingetc.

Deep understanding of structural mechanics, fatigue analysis, thermal managementprinciplesand ability to interpret FEA/CFDanalysis results

Strong background withDFMEA, PFMEA, tolerance stack-upetc.

Strong problem-solving skills and the ability to perform root cause analysis

Additional Desired Skills:

Experience in high voltage battery systems, energystorageor EV industry

Knowledge of battery electrical components (cells, modules, current collectors, busbars, module too pack integrationetc)

Knowledge of manufacturing processes unique to battery pack construction (e.g., laser welding, potting, sealing)

Designed and assembled in the United States, Proterra’s innovative battery platform offers industry-leading energy density, durability,performanceand 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, SC

Travel:

15% Travel

Applicants mustbe authorized towork for any employer in the U.S. There is no immigration sponsorship available for this role (ex: H1-B, OPT, CPT,TNor 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).

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Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.

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