Senior / Process Engineer - Injection Molding

Molex; Seberang Perai; On-site; MYR 120,000 - 180,000; Full time

Job summary

Molex is seeking a Senior / Process Engineer - Injection Molding in Malaysia to own the full molding lifecycle from mold qualification to production, ensuring quality parts on time.

You will optimize processes, evaluate mold designs, troubleshoot defects, lead DOEs, and collaborate with design, quality, and production teams to ensure robust tooling and processes across shifts.

Qualifications

• Bachelor's degree in Mechanical, Plastics, Manufacturing Engineering, or related field.
• 3+ years of experience in injection molding process engineering, tooling engineering, or a combined role.
• Working knowledge of thermoplastic materials and mold construction (cold runner, hot runner, multi-cavity).
• Experience with process validation (IQ/OQ/PQ) and mold qualification activities.
• Proficiency with CAD software for mold/part review (e.g., SolidWorks, Moldflow, or similar).

Responsibilities

• Develop, optimize, and validate injection molding processes for new and existing products, balancing cycle time, quality, and cost.
• Evaluate mold designs for manufacturability and partner with mold makers on tool builds, modifications, and repairs.
• Troubleshoot process- and tooling-related defects on the production floor, driving root cause analysis and corrective actions.
• Lead mold sampling, first-article inspection, and process/tool qualification for new and revised programs.
• Run DOEs to establish robust process windows and reduce variation across shifts and machines.
• Plan and oversee preventive maintenance schedules to maximize tool life and minimize unplanned downtime.
• Collaborate with product design, quality, and production teams during new product introduction (NPI).
• Maintain process and tooling documentation, including work instructions, control plans, and mold records.

Skills

Injection molding

Process optimization

Root cause analysis

DOE execution

Cross-functional collaboration

Education

Bachelor's degree in Mechanical / Plastics / Manufacturing Engineering

Tools

SolidWorks

Moldflow

Siemens NX

Job description

Senior / Process Engineer - Injection Molding

You'll join our Manufacturing Engineering team, owning the full injection molding lifecycle — from mold qualification through steady-state production — to ensure our processes and tooling consistently deliver quality parts on time. This role involves optimizing production efficiency, ensuring product quality, and driving continuous improvement initiatives in molding operations

What You Will Do

• Develop, optimize, and validate injection molding processes for new and existing products, balancing cycle time, quality, and cost
• Evaluate mold designs for manufacturability and partner with mold makers on tool builds, modifications, and repairs
• Troubleshoot process- and tooling-related defects on the production floor, driving root cause analysis and corrective actions
• Lead mold sampling, first-article inspection, and process/tool qualification for new and revised programs
• Run DOEs to establish robust process windows and reduce variation across shifts and machines
• Plan and oversee preventive maintenance schedules to maximize tool life and minimize unplanned downtime
• Collaborate with product design, quality, and production teams during new product introduction (NPI)
• Maintain process and tooling documentation, including work instructions, control plans, and mold records

Who You Are (Basic Qualifications)

• Bachelor's degree in Mechanical, Plastics, Manufacturing Engineering, or related field
• 3+ years of experience in injection molding process engineering, tooling engineering, or a combined role
• Working knowledge of thermoplastic materials and mold construction (cold runner, hot runner, multi-cavity)
• Experience with process validation (IQ/OQ/PQ) and mold qualification activities
• Proficiency with CAD software for mold/part review (e.g., SolidWorks, Moldflow, or similar)

What Will Put You Ahead

• Proficiency with Siemens NX software
• Hands-on machining or mold-building experience (CNC, EDM, grinding)
• Familiarity with mold flow simulation and scientific molding principles
• Experience with plastic injection molding, hot runner systems and advanced gating techniques
• Background in automotive, medical device, or consumer electronics manufacturing
• Six Sigma or lean manufacturing certification

At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.

Who We Are

As a Koch company, Molex is a leading supplier of connectors and interconnect components, driving innovation in electronics and supporting industries from automotive to health care and consumer to data communications. The thousands of innovators who work for Molex have made us a global electronics leader. Our experienced people, groundbreaking products and leading-edge technologies help us deliver a wider array of solutions to more markets than ever before.

At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.

Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.