Senior Injection Molding Technician — Process Optimizer

Sanmina Corporation; Town of Turtle Lake (WI); On-site; USD 42,000 - 66,000; Full time

Job summary

Sanmina Corporation is seeking a Sr. Injection Molding Technician for a Monday–Friday 7am–3pm shift in Wisconsin. You will work with engineers on setup, calibration, and testing to support production of molded components.

Responsibilities include mold/changeover setup, parameter calibration, process optimization, and quality inspections of parts using precision tools. Ideal candidates have 2–4 years in mold setup and tooling, familiarity with plastics processing, and the ability to interpret

Qualifications

• Associate's degree or technical certification in plastics processing is highly preferred.
• 2–4 years of hands-on experience in mold set-up, tooling procedures, and machine processing.
• Familiarity with scientific molding/decoupled molding principles, blueprint reading, and PLC controllers.

Responsibilities

• Machine Setup & Changeovers: Prepare machines for production by installing, aligning, and securing molds and tooling.
• Calibrate parameters such as temperature, pressure, clamp force, and injection speed according to specs.
• Monitor production runs to ensure cycle times and part dimensions meet tolerances.
• Troubleshoot molding defects (flash, short shots, sink, warpage) by adjusting process controls.
• Execute start-up and shutdown procedures safely.
• Inspect parts visually and use precision instruments to verify conformance.
• Document process changes and maintain production logs.
• Perform routine preventive maintenance on injection molding machines and auxiliary equipment.
• Maintain a clean, organized workspace and adhere to safety standards (OSHA).

Skills

Mold setup

Tooling procedures

Blueprint reading

PLC controllers

Education

Associate's degree or plastics processing cert

Job description

Sanmina Corporation is seeking a Sr. Injection Molding Technician for a Monday–Friday 7am–3pm shift in Wisconsin. You will work with engineers on setup, calibration, and testing to support production of molded components.

Responsibilities include mold/changeover setup, parameter calibration, process optimization, and quality inspections of parts using precision tools. Ideal candidates have 2–4 years in mold setup and tooling, familiarity with plastics processing, and the ability to interpret