Proterra

Sr. Validation Engineer

Proterra$90K — $120K *
Greer, SC 29651In-Person
Manufacturing & Automotive
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • B.S. or M.S. in Mechanical or Electrical Engineering or related field
  • 3-6 years of testing experience with batteries or HV electrical systems
  • Familiarity with UN38.3, UL 2580, SAE J2929 standards
  • Strong data analysis skills with Python, MATLAB, or similar tools
  • Excellent communication skills for conveying complex data
  • Ability to manage multiple projects in a fast-paced environment
  • Experience with battery testing equipment like cyclers and environmental chambers

Responsibilities

  • Design, plan, and execute validation tests for modules and pack-level systems
  • Translate design requirements into comprehensive test plans
  • Collaborate with cross-functional teams to align validation strategies
  • Analyze test data and communicate findings to stakeholders
  • Drive improvements in test methods and data quality
  • Track and manage validation issues using structured tools
  • Coordinate external lab certification testing

Benefits

  • Collaborative work environment with cross-functional teams
  • Opportunity to work on next-generation electric vehicle technologies
  • High visibility role within the organization
  • Exposure to industry standards and regulatory testing
  • Professional growth through challenging technical problem-solving
Full Job Description
Position Overview:

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.

About the Role - You will:

  • 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)


Your Experience Includes:

  • 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


Additional Desired Skills:

  • 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


Location: Onsite role in Greer, SC

Travel: < 20% Travel

About Proterra

Proterra is an American automotive and energy storage company based in Burlingame, California. The company designs and manufactures electric transit buses and electric charging systems. Proterra's Catalyst series includes transit buses ranging from 35 feet to 40 feet in length and various battery configurations. Buses are charged through an overhead charging station that is placed at maintenance facilities as well as route terminals. Founded in 2004, it became a public company in June 2021 through a business transaction with a Nasdaq-listed special-purpose acquisition company.
Learn more about Proterra
Market Cap
$825.4 million
Industry
Founded
2004
NASDAQ

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