Sr. Validation Engineer

Proterra•Greer, SC

1d•Onsite

About The Position

Proterra offers a dynamic and supportive workplace where our employees can thrive personally and professionally. With cutting-edge facilities and groundbreaking projects, Proterra offers unique opportunities to grow, collaborate, and lead transformative changes in 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 full selves to work. Our employees benefit from competitive total rewards packages, and opportunities to develop professionally. As a Senior Validation Engineer, you will own testing and validation across the full battery lifecycle — from modules to complete pack-level systems. You will work shoulder-to-shoulder with mechanical designers, electrical engineers, embedded systems engineers, manufacturing, and program management to ensure our batteries meet the performance, safety, and durability standards required for next-generation electric vehicles. This is a high-visibility, cross-functional role for an engineer who thrives on collaboration, is energized by solving complex technical problems, and takes pride in delivering rigorous, trustworthy data.

Requirements

B.S. or M.S. in Mechanical Engineering, Electrical Engineering, or a related field
3–6 years of hands-on battery or HV electrical system testing experience, with direct exposure to both module and pack-level validation
Familiarity with relevant standards and protocols including UN38.3, UL 2580, SAE J2929, or equivalent
Strong data analysis skills; proficiency in Python, MATLAB, or similar tools for processing and visualizing large test datasets
Excellent written and verbal communication skills — you can distill complex test results into actionable insights for engineering and leadership audiences alike
Demonstrated ability to manage multiple concurrent workstreams in a fast-paced product development environment
Experience with test equipment such as battery cyclers, environmental chambers, vibration tables, and data acquisition systems

Nice To Haves

Familiarity with FMEA, DVP&R, or other structured reliability engineering frameworks
Exposure to pack-level thermal management validation or BMS characterization
Prior experience at an EV OEM, Tier 1 supplier, or battery manufacturer

Responsibilities

Design, plan, and execute validation test programs across module qualification, and pack-level system integration testing
Translate design requirements and customer specifications into comprehensive test plans, including performance, environmental, mechanical, and abuse protocols
Collaborate closely with pack designers, thermal engineers, and BMS teams to align validation strategy with design intent and program milestones
Analyze test data, identify failure modes, and communicate findings clearly to cross-functional stakeholders — including non-technical audiences — through well-structured reports and design reviews
Drive continuous improvement of test methods, fixtures, and data acquisition systems to increase throughput and data quality
Track and manage open validation issues using structured tools; ensure findings are resolved and documented before program gating milestones
Support external lab coordination for certification testing (e.g., UN38.3, ECE R100, SAE J2464, SAE J2380)