Injection Mold Design Engineer - Medical Devices

Flex; Buffalo Grove (IL); On-site; USD 90,000 - 120,000; Full time

Job summary

Flex is seeking an Injection Mold Design Engineer for its Buffalo Grove, IL site. You will design tooling for molds, jigs, and fixtures and support product specifications through engineering and documentation.

The role emphasizes DFx evaluations, tool design optimization, and cross‑functional collaboration to ensure quality and efficiency in production. Prior experience in medical devices is a plus.

Qualifications

• 3+ years of experience in plastic injection molding, mold design and tool design/engineering.
• Ability to interpret layouts and drawings and perform capacity analyses.
• Experience in MS Office (Excel) and familiarity with medical device manufacturing is a plus.

Responsibilities

• Design and engineer moderately complex tooling protocols for molds, jigs, and fixtures per product specifications.
• Participate in design reviews and provide status updates on toolroom work.
• Perform DFx (Design for Manufacturability) evaluations and implement cost-effective design changes.
• Prepare ECOs and BOMs tied to engineering drawings and documentation.
• Collaborate with teams to qualify, sample, and approve final parts.
• Assist in developing layouts, drawings, and documentation for components and assemblies.

Skills

Injection molding

Mold design

Tool design

Drawings interpretation

Engineering analysis

MS Office

Medical devices experience

Tools

SolidWorks

Siemens NX

PRO/E

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.

Job Description

To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add an Injection Mold Design Engineer located in Buffalo Grove IL.

Reporting to the Design and Engineering Manager, the Injection Mold Design Engineer will be responsible for designing and engineering tooling protocols for molds, jigs and fixtures as required to meet products specifications. Designing and developing components, products, equipment, and systems.

What a typical day looks like:

• Design and engineer moderately complex tooling protocols for molds, jigs, and fixtures as per product specifications.
• Participate in design reviews.
• Critical thinking, strong communication and vision
• Perform Design for Manufacturability (DFM) evaluation.
• Implement cost effective tool design changes.
• Collaborate with other team members to qualification, sampling, and final part approval.
• Provide status reports as per established schedule
• Prepare and maintain documentation related to tool room equipment.
• Assisting in the design and development of engineering layouts, drawings, and documentation for components, assemblies, and subassemblies using CAD systems. Collaborating in the development of new or modified designs.
• Assisting in establishing design standards and configurations, ensuring adherence to company standards and specifications.
• Preparing ECOs and bills of materials that correspond to engineering drawings, ensuring accurate documentation and record-keeping.
• Applying knowledge of design and engineering to recommend improvements to products and processes, contributing to the continuous improvement efforts of the organization.
• Performing engineering tests, checkouts, and development engineering tasks. Diagnosing malfunctions, analyzing test results, and proposing and implementing changes to resolve problems.
• Devising, fabricating, and assembling mechanical components or assemblies for various products. Conducting tests on complete units and components under operational conditions to investigate design and obtain data for development, standardization, and quality control.
• Recording test procedures, results, and recommendations for changes in product or test methods. Maintaining software, documentation, and equipment to the latest revision or operational specifications.
• Assisting engineers in developing and designing hardware and software required for testing customer products per their specifications.
• Training technicians and operators on products, processes, and equipment, ensuring proper understanding and utilization.

Requirements:

• Bachelor's degree NOT required, but MUST have at least 3 years' work experience in the following:
• Plastic injection molding
• Mold design
• Tool design / engineering
• Interpretating layouts and drawings
• Capacities analysis
• Proficiency in MS Office, e.g. Excel, etc.
• Above work experience from the following types of companies required: mold design / mold making and/or medical device manufacturing (or similar).

Ideal/highly desirable work experience:

• Expert knowledge in injection plastic molding and tooling experience
• SolidWorks; Siemens/NX, and/or PRO-E
• Knowledge medical validations

JT05

AA01

MS14

CC11

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).