Senior NPI Engineer - Plastics

As the largest global shared micromobility business, Lime is on a mission to build a future where transportation is shared, affordable and carbon-free. A Time Magazine 100 Most Influential Company, Lime has powered more than one billion rides in close to 30 countries across five continents, spurring a new generation of clean alternatives to car ownership. Learn more at li.me.

Lime is seeking a Senior NPI Engineer based in Shenzhen, China. Reporting to the NPI & Quality Director, you will drive NPI for plastic components across China and SEA. You are responsible for the end-to-end industrialization process—from early design review and process planning to mass production ramp-up and production duplication.

This is an onsite position that requires onsite presence at our Shenzhen office to maintain effective collaboration across teams.

This position requires occasional travel to support business operations, which is considered an essential function of the role. Lime will provide reasonable accommodations as needed.

What You’ll Do:

• Design Optimization & DFM/DFX: Lead early-stage design reviews and DFM optimization to ensure manufacturability, cost-efficiency, and quality for high-complexity plastic components.

• Process Engineering & Planning: Own critical process management (CPM) for plastics. Oversee end-to-end process planning, including the development, review, and approval of flow charts, PFMEA, and standard operating procedures (SOP).

• Production Industrialization: Manage production line setup, mold validation, equipment qualification and golden sample approval to ensure a seamless transition from prototype to mass production.

• Issue Resolution & Risk Management: Execute rigorous failure analysis and risk assessments to identify root causes, driving effective corrective and preventive actions (CAPA).

• Validation & Quality Control: Lead PPAP/PSW sign-off and oversee EVT/DVT builds and MP ramp-up, ensuring documentations and performance metrics such as FAI, Cpk, UPH, and FPY are approved/met.

• Scaling & Packaging: Oversee mold and production duplication across multiple lines, sites and vendors. Direct package design to ensure product safety, integrity, and cost-efficiency during global transit.

About You:

• BS or higher in Engineering or Science with a strong plastics background.

• 7+ years of NPI engineering experience, with 5+ years of dedicated expertise in plastic injection molding and resin materials.

• Deep expertise in Design for Manufacturing (DFM/DFA) for complex plastic components. Proven ability to influence design decisions early in the development cycle, identifying potential structural constraints and proposing advanced manufacturing solutions that optimize cycle time, yield, tool longevity, and overall unit cost.

• Extensive experience in production line setup, mold qualification, and robust process development (Flow chart, PFMEA, SOP).

• Hands-on experience of NPI milestones (EVT/DVT/MP) and quality control tools (PPAP, FAI, Cpk, SPC, 8D).

• Demonstrated ability to lead complex failure/root cause analysis and implement comprehensive risk mitigation strategies.

• Skilled in managing multi-site production duplication and vendor scaling projects.

• Proficiency with rubber/tires, industrial paint, and powder coating is highly preferred.

• Fluent in oral English, with good presentation and influencing skills to collaborate effectively with global cross-functional teams and external suppliers.

• Willingness and capability to travel domestically and internationally as required.

Preferred Experience:

• Six Sigma Green Belt training or certification.

• Prior experience working or traveling for business within Southeast Asia (SEA).

#LI-Onsite

If you want to make an impact, Lime is the place for you. Not sure if you meet all the qualifications? If this role excites you we encourage you to apply. Explore all opportunities on our career page.

Lime is proud to be an Equal Opportunity Employer. We believe different perspectives help us grow and achieve more. That’s why we’re dedicated to building and developing a team that reflects a wider range of backgrounds, abilities, identities, and experiences. If you require a reasonable accommodation during the application or hiring process, please email [email protected] for assistance.