Onsite Supplier Quality Engineer – EV Battery Parts

Proterra; Greer (SC); On-site; USD 85,000 - 110,000; Full time

Job summary

Proterra is seeking a Supplier Quality Engineer based in Greer, SC. You will own the quality of purchased components for battery packs, with a focus on aluminum enclosures, hardware, and distributor-sourced parts.

The role is hands-on on the production floor, collaborating with Sustaining Engineering and Plant Quality to resolve issues and drive supplier improvements. You will support APQP/PPAP for new parts and changes, review PPAPs against AIAG requirements, and lead containment and

Qualifications

• Bachelor’s degree in Mechanical, Industrial, Manufacturing, or Materials Engineering, or a related technical field.
• 0 to 3 years of experience in supplier quality, manufacturing or plant quality, industrial engineering, or a related role (co‑op and internship counts).
• Working knowledge of GD&T and the ability to read and interpret engineering drawings.
• Familiarity with APQP, PPAP, FMEA, control plans, SPC, and structured problem solving (8D, 5 Why, fishbone).
• Proficiency with Microsoft Excel and PowerPoint.
• Willingness to travel up to 30% to supplier sites in North America.

Responsibilities

• Serve as the supplier quality point of contact for an assigned group of aluminum enclosure, hardware, and distributor suppliers.
• Support APQP and PPAP activities for new parts and engineering changes.
• Review PPAP submissions (process flows, PFMEAs, control plans, dimensional and material results) against AIAG requirements and Proterra drawings.
• Coordinate supplier implementation of engineering changes (ECNs and ECOs) with Sustaining Engineering.
• Lead resolution of supplier nonconformances: initiate NCRs, drive containment, and work with suppliers on root cause analysis and corrective action using 8D and other structured problem‑solving tools.
• Spend time on the production floor with Plant Quality and Manufacturing to see problems firsthand, sort and disposition suspect material, and represent Supplier Quality in MRB.
• Work with distributors to set clear quality and traceability expectations for the manufacturers behind them, recognizing that alternate sources are limited.
• Make sure suppliers understand Proterra drawings, GD&T, and specifications, and resolve their questions promptly.
• Track and report supplier performance (PPM, NCRs, on‑time delivery, corrective action status) using Excel, Smartsheet, and Power BI.
• Support supplier audits and process reviews, including on‑site visits to supplier facilities.
• Collect and review regulatory compliance and product carbon footprint data submitted with PPAP.
• Contribute to process improvement and automation projects that make supplier quality work faster and more consistent, including building tools and dashboards.
• Support cross‑functional investigations of production and field issues tied to purchased parts.

Skills

Hands-on

Detail-oriented

Clear communication

Curiosity to learn

Problem solving

Education

Bachelors in Mechanical/Industrial/Manufacturing/Materials Eng

Tools

Microsoft Excel

PowerPoint

Job description

Proterra is seeking a Supplier Quality Engineer based in Greer, SC. You will own the quality of purchased components for battery packs, with a focus on aluminum enclosures, hardware, and distributor-sourced parts.

The role is hands-on on the production floor, collaborating with Sustaining Engineering and Plant Quality to resolve issues and drive supplier improvements. You will support APQP/PPAP for new parts and changes, review PPAPs against AIAG requirements, and lead containment and