Mold Maintenance and CNC Technician – Plastic Injection Molding | Saudi Arabia

RAWAJ; Riyadh; On-site; SAR 120,000 - 150,000; Full time

Job summary

A leading manufacturing company in Riyadh, Saudi Arabia, is seeking an experienced Plastic Injection Mold Technician to maintain and repair injection molds. The ideal candidate should have at least 5 years of experience in mold maintenance and hands-on expertise with CNC machines and other tool room equipment. Key responsibilities include performing maintenance tasks, troubleshooting mold defects, and collaborating with production teams. This role offers a chance to work in a dynamic environment with a focus on high-quality production.

Qualifications

• Minimum 5 years of experience in plastic injection mold maintenance and machining.
• Hands-on experience with CNC machines, lathes, milling machines, surface grinders.
• Experience in troubleshooting mold defects and implementing corrective actions.

Responsibilities

• Perform preventive and corrective maintenance on plastic injection molds.
• Inspect molds for wear and perform necessary repairs.
• Collaborate with production and design teams to improve mold performance.

Skills

CNC machines operation

Mold maintenance

Troubleshooting

Dimensional accuracy

Education

Diploma or Technical Certificate in Tool & Die, Mechanical Engineering, Machining Technology

Tools

CNC machines

Lathes

Milling machines

Surface grinders

Job description

Leverage your expertise and become a key part of a dynamic manufacturing team in a leading plastic injection molding environment in Riyadh, Saudi Arabia.

As a Plastic Injection Mold Technician, you will be responsible for maintaining, repairing, and modifying injection molds to ensure high-quality production with minimal downtime. You will also collaborate with production and design teams to optimize mold performance and longevity.

Key Accountabilities

• Perform preventive and corrective maintenance on plastic injection molds.
• Inspect molds for wear, damage, or deformation and perform polishing, welding, or machining as required.
• Disassemble, clean, repair, and reassemble molds according to scheduled maintenance.
• Identify root causes of defects (e.g., flashing, short shots, deformation) and implement corrective actions.
• Operate lathe, milling, grinding, and CNC machines to repair or fabricate mold components.
• Manufacture replacement parts such as cores, cavities, inserts, and ejector pins with high precision.
• Set up and operate CNC machines, conventional lathes, surface grinders, and other tool room equipment.
• Maintain all tooling, measuring instruments, and workshop equipment in optimal condition.
• Collaborate with production and mold design teams to improve mold performance and support modifications.

Qualifications & Experience

• Diploma or Technical Certificate in Tool & Die, Mechanical Engineering, Machining Technology, or related field.
• Minimum 5 years of experience in plastic injection mold maintenance and machining.
• Hands‑on experience with CNC machines, lathes, milling machines, surface grinders, and other tool room equipment.
• Proven ability to maintain dimensional accuracy and surface finish per mold design specifications.
• Experience in troubleshooting mold defects and implementing corrective actions.