Engineering Supervisor - (Injection Moulding Manufacture)

Engineering Supervisor

PT. Wang Sarimulti Utama
📍 Delta Silicon 2 Industrial Estate, Lippo Cikarang
🏭 Automotive Plastic Injection Moulding

About Us

PT. Wang Sarimulti Utama is an Automotive Plastic Injection Moulding company serving OEM and Tier-1 customers. We are committed to delivering high-quality products through innovation, engineering excellence, and continuous improvement.

We are looking for an experienced Engineering Supervisor to supervise daily engineering activities, optimize injection moulding processes, support new product development, and ensure stable and efficient manufacturing operations in accordance with automotive quality standards.

Key Responsibilities

• Supervise daily Engineering activities related to injection moulding processes, tooling, product trials, and technical production support.

• Monitor and optimize injection moulding process parameters, including temperature, pressure, injection speed, holding pressure, cooling time, and cycle time.

• Troubleshoot and resolve injection moulding defects, such as short shots, flash, sink marks, warpage, burn marks, silver streaks, and weld lines.

• Coordinate mold trials, new product trials, process validation, sample preparation, and engineering activities from initial trials through mass production.

• Support New Product Development (NPD) activities, including tooling evaluation, process feasibility reviews, and production readiness.

• Ensure that process parameters, machine settings, tooling conditions, and work instructions are properly documented and controlled.

• Coordinate with Production, Quality, Maintenance, PPIC, and other related departments to resolve technical issues and minimize production downtime.

• Monitor mold and tooling performance and coordinate preventive maintenance, troubleshooting, and improvement activities with the relevant teams.

• Analyze process performance and implement improvements to reduce scrap, cycle time, downtime, and manufacturing costs.

• Support the implementation of engineering changes, process changes, and product changes in accordance with established procedures and customer requirements.

• Ensure compliance with quality management systems, including IATF 16949 requirements and applicable Automotive Core Tools such as APQP, PPAP, FMEA, MSA, and SPC.

• Review engineering data, process trial results, and technical reports, and provide regular updates to the Head Engineering.

• Supervise, coach, and evaluate Engineering staff and technicians to ensure effective execution of engineering activities.

• Support customer and supplier technical activities, including mold trials, technical reviews, and corrective action implementation when required.

Qualifications

• Diploma (D3) or Bachelor's Degree (S1) in Mechanical Engineering, Manufacturing Engineering, Mechatronics, Industrial Engineering, or a related field.

• Minimum 5 years of experience in the manufacturing industry, preferably in Automotive Plastic Injection Moulding.

• Minimum 2 years of experience in a supervisory or team-leader role within an Engineering, Process Engineering, or Injection Moulding department.

• Hands-on experience in plastic injection moulding processes, including machine setup, parameter setting, process optimization, and troubleshooting.

• Strong understanding of injection moulding process variables, plastic material characteristics, mold construction, and tooling principles.

• Proven ability to analyze and resolve injection moulding defects and maintain stable production processes.

• Experience conducting mold trials, product trials, process validation, and new product introduction activities.

• Knowledge of automotive quality standards and systems, particularly IATF 16949, APQP, PPAP, FMEA, MSA, and SPC.

• Able to read and interpret 2D engineering drawings and understand basic 3D CAD models.

• Familiar with process documentation, engineering changes, work instructions, and technical reporting.

• Proficient in Microsoft Office; familiarity with AutoCAD or other CAD software is an advantage.

• Good problem-solving, analytical, communication, coordination, and team leadership skills.

• Able to work under pressure, prioritize technical issues, and coordinate cross-functional teams to meet production targets.

• Good command of English, both written and spoken, is preferred.

Preferred Qualifications

⭐ Experience in Automotive Plastic Injection Moulding, particularly with OEM and Tier-1 automotive customers.

⭐ Experience handling engineering plastics, such as ABS, PC, PC/ABS, PA, PBT, and other commonly used automotive plastic materials.

⭐ Familiar with injection moulding machines, auxiliary equipment, hot runner systems, and mold temperature controllers.

⭐ Experience in mold design review, mold improvement, mold troubleshooting, and preventive maintenance coordination.

⭐ Familiar with root cause analysis and problem-solving methods, including 5 Why, Fishbone Diagram, 8D, and PDCA.

⭐ Knowledge of Lean Manufacturing, Kaizen, scrap reduction, cycle time optimization, and continuous improvement.

⭐ Familiar with ERP systems and engineering documentation control.

⭐ Experience supporting automotive customer audits and new product qualification activities.