Molding Engineer (Medical devices)

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.

Job Summary
To support our extraordinary teams who build great products and contribute to our growth, we're looking to add a Molding Engineer located in Tijuana, Mexico.

Reporting to the Process Engineering Manager , the Molding Engineer role involves.

What a typical day looks like:

• Develop injection molding processes using proven scientific methodologies.
• Validate injection mold and work cell through IQ, OQ, PQ validation process.
• Document in detail, molding process, mold set up, work cell layout, and troubleshooting information for each job that is validated.
• Participate in project meetings in order to keep project on track until completion of validation into production.
• Support current production needs for trouble shooting and process improvement.
• Support Product Development/Design Engineering activities.
• Support Six Sigma & Lean Activities.
• Define, Implement, and evaluate proposed designs and processes for manufacturability.
• Support and oversee new process equipment production.
• Support the raising and introduction of engineering change orders (ECOs).
• Participate in activities pertaining to cycle time and process improvements.
• Evaluate and select various engineered materials.
• Implement statistical process analysis on new and existing products.
• Implement safety, productivity and yield improvements.
• Improve manufacturing techniques and through put.
• Develop and maintain process documentation.
• Review processing methods.
• Interface with production of all activities associated with new process implementation and transfer.
• Assist in the development of training and provide training to production personnel during new technology transfer
• Train Process Technicians and other Process Engineers
• NPA - Activities, new molds, validation process, looking through parameters, metrology, parts that can be produced.

The experience we're looking to add to our team:

• Advanced English.
• Typically requires a bachelor's degree or equivalent work experience
• Scientific molding (essential)
• Process validations (IQ/OQ/PQ)
• Interpretation of DOE and basic statistical analysis
• Handling of auxiliary equipment (dryers, chillers, hot runners, etc.)
• Knowledge of: cpk/ppk, GR&R (preferable), process control, GD&T
• Knowledge of: ISO 13485 and FDA 21 CFR 820
• Good documentation practices (GDP)
• Experience with Low pressure molding injection
• Experience working on Medical Industry.
• Experience in IQ, OQ and PQ validations
• Knowledge with statistical tools
• Molding/machines transfer projects

What you'll receive for the great work you provide:

• Pantry vouchers
• Saving Fund
• Christmas bonus
• Holiday bonus
• Medical Insurance
• Life Insurance

CP68

Job Category
Production Engineering

Required Skills:

Optional Skills:

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 accessibility@flex.com 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).

Client-provided location(s): Tijuana, Mexico

Job ID: Flex-WD221035

Employment Type: FULL_TIME

Posted: 2026-05-20T20:27:25