Plastics Injection Molding – Manufacturing Engineer II; US - Mansfield

Life Unlimited. At Smith+ Nephew we design and manufacture technology that takes the limits off living. The Plastics Engineer II will serve as a primary technical resource on the manufacturing floor, focusing on hands‑on injection molding processing and mold maintenance to support medical device production. This role requires a strong background in scientific molding to develop, optimize, and troubleshoot molding processes, as well as the ability to perform or support mold maintenance, repair, and setup.

• No visa transfer or sponsorship now or in the future.

• Hands‑on process optimization:
  Lead injection molding process development and optimization using Scientific Molding techniques (e.g., DOE, viscosity curves, cavity pressure monitoring) to ensure consistent quality and efficiency.
• Mold maintenance & support:
  Perform and manage mold preventative maintenance (PM), repair, and modification to maximize mold life and minimize downtime.
• Troubleshooting:
  Act as the technical lead in resolving production issues related to machinery, tooling, materials, and process deviations.
• Validation & compliance (GMP/ISO):
  Develop and execute validations (IQ/OQ/PQ) for new molds, processes, and equipment in compliance with FDA and ISO 13485 regulations.
• Production setup:
  Lead mold trials, machine setups, and commissioning of new molds/equipment.
• Documentation:
  Maintain meticulous process documentation, including Process Flow Diagrams, Mold Maintenance Logs, and Work Instructions.
• Technical support:
  Collaborate with Product Development on Design for Manufacturability (DFM) and support the tooling team with CAD reviews and mold flow analysis.

Location:

Mansfield, Massachusetts (in‑person role)

Education: Bachelors degree in Plastics Engineering

Experience: 2+ years of hands‑on experience in plastic injection molding, specifically within the medical device or high‑precision industry.

• Deep understanding of scientific molding processes.
• Strong mold maintenance, tooling, and repair capabilities (e.g., hot runners, mold disassembly).
• Proficiency in CAD software (Solid Works/AutoCAD).
• Experience with medical regulatory requirements (GMP/ISO 13485).

Physical Demands: Ability to lift 35 lbs

Travel Requirements: < 10%

The anticipated base compensation range for this position is $74,250 to $111,500 USD annually.

• Medical, dental, and vision coverage.
• 401(k) and tuition reimbursement.
• Medical leave programs, parental leave, generous PTO, paid company holidays.
• 8 hours of volunteer time annually and a variety of wellness offerings such as EAP.
• Inclusion and belonging initiatives, employee assistance program, fertility and adoption assistance.
• Training opportunities, mentorship programs, and discounts on fitness clubs, travel, and more.

Smith+ Nephew provides equal employment opportunities to applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, or disability.