Hands-On Injection Molding Engineer: Process & Quality

PT. Jaya Refrigeration Equipment (Midea Washing Machine); Cikarang; On-site; IDR 180,000,000 - 300,000,000; Full time

Job summary

PT. Jaya Refrigeration Equipment (Midea Washing Machine) seeks an Injection Molding Engineer to optimize molding processes and ensure consistent product quality.

The role requires hands-on setup, mold changeovers, parameter tuning, and troubleshooting on the production floor. You will work with production, quality, tooling, and maintenance teams to reduce defects, improve efficiency, and support NPI and continuous improvement initiatives.

Qualifications

• Bachelor's degree in Mechanical Engineering or related field.
• 2–3 years of injection molding engineering or plastics experience.
• Hands-on injection molding machine setup and mold changeover.
• Ability to adjust process parameters and troubleshoot defects.
• Knowledge of Lean Manufacturing and 5S is a plus.

Responsibilities

• Perform hands-on setup and adjustment of injection molding machines, molds, and process parameters to meet production requirements.
• Conduct mold installation, mold changeover, machine start-up, and trial runs for new and existing products.
• Set and optimize process parameters including injection pressure, speed, temperature, holding pressure, and cooling time.
• Troubleshoot molding defects such as short shots, flash, sink marks, warpage, and other quality issues.
• Conduct mold trials, process validation, and parameter optimization to improve product quality and production efficiency.
• Analyze production issues and implement corrective and preventive actions to reduce defects, scrap, and downtime.
• Monitor cycle time, scrap rate, machine utilization, and process stability.
• Collaborate with Production, Quality, Tooling, and Maintenance teams to resolve issues and improve performance.
• Support new product introduction (NPI), mold installation, and continuous improvement activities.
• Develop and maintain work instructions, process parameter sheets, and technical documentation.
• Ensure compliance with manufacturing standards, safety, and 5S practices.

Job description

PT. Jaya Refrigeration Equipment (Midea Washing Machine) seeks an Injection Molding Engineer to optimize molding processes and ensure consistent product quality.

The role requires hands-on setup, mold changeovers, parameter tuning, and troubleshooting on the production floor. You will work with production, quality, tooling, and maintenance teams to reduce defects, improve efficiency, and support NPI and continuous improvement initiatives.