Molding Process Technician – Day Shift

Flex; Buffalo Grove (IL); On-site; USD 42,000 - 64,000; Full time

Job summary

Flex is seeking a Molding Process Technician for the Day Shift in Buffalo Grove, IL. The role focuses on setting up, operating, monitoring, and troubleshooting injection molding machines to ensure optimal performance and part quality.

Responsibilities include process optimization, quality assurance, and safety compliance with ISO-13485 and FDA CFR/GMP standards. 1–3 years of experience in injection molding is preferred; high school diploma or GED required.

Qualifications

• High School Diploma or GED required; Associate’s degree preferred.
• 1–3 years of experience in injection molding or mold setup.
• Experience with hydraulic and electric injection molding machines.

Responsibilities

• Set up molds, machines, and auxiliary equipment for production runs.
• Adjust machine parameters to maintain part quality and meet specifications.
• Start up and shut down molding machines per SOPs.
• Diagnose and resolve molding issues (flash, short shots, warping).
• Perform routine maintenance and minor repairs; collaborate with maintenance/engineering.
• Inspect molded parts for defects and ensure quality standards.
• Maintain process control and lot traceability documentation.
• Support root cause analysis and corrective actions.
• Monitor mold performance and suggest cycle-time/ scrap reductions.
• Follow safety protocols and comply with ISO-13485, FDA CFR/GMP, and other regulatory requirements.

Skills

Mechanical aptitude

Blueprint reading

Troubleshooting

Teamwork

Technical drawings

Education

HS Diploma/GED

Assoc. degree in Plastics

Tools

CNC machines

Robotic automation

Mold maintenance tools

Hydraulic/electric machines

Job description

Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world. A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.
The Molding Process Technician – Day Shift located in Buffalo Grove, IL is responsible for setting up, operating, monitoring, and troubleshooting injection molding machines and associated equipment. This role ensures optimal machine performance, part quality, and adherence to safety and regulatory standards.
Shift Schedule: 6am-6pm (Rotating Shit)
Key Responsibilities:

• Machine Setup & Operation
  • Set up molds, machines, and auxiliary equipment for production runs.
  • Adjust machine parameters to maintain part quality and meet specifications.
  • Start up and shut down molding machines per standard operating procedures.
• Troubleshooting & Maintenance
  • Diagnose and resolve molding issues such as flash, short shots, or warping.
  • Perform routine maintenance and minor repairs on molds and machines.
  • Collaborate with maintenance and engineering teams for complex repairs.
• Quality Assurance
  • Inspect molded parts for defects and ensure compliance with quality standards.
  • Maintain documentation for process control, lot traceability, and corrective actions.
  • Support root cause analysis and implement corrective actions for quality issues.
• Process Optimization
  • Monitor mold performance and suggest improvements to reduce cycle time and scrap.
  • Participate in continuous improvement initiatives and lean manufacturing efforts.
• Safety & Compliance
  • Follow all safety protocols and ensure equipment is operated safely.
  • Comply with ISO-13485, FDA CFR/GMP, and other regulatory requirements.

Qualifications:

• Education:
  • High School Diploma or GED required.
  • Associate’s Degree in Plastics Technology, Manufacturing, or related field preferred.
• Experience:
  • Minimum 1–3 years of experience in injection molding or mold setup.
  • Experience with hydraulic and electric injection molding machines.
• Certifications (Preferred):
  • RJG Master Molder I or II
  • Forklift Certification

Skills & Competencies:

• Strong mechanical aptitude and problem-solving skills.
• Ability to read and interpret blueprints and technical drawings.
• Familiarity with CNC machines and robotic automation.
• Knowledge of plastic materials, mold design, and processing parameters.
• Excellent communication and teamwork abilities.

AW20
Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email [e-mail] and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).