Molding Engineering Intern - Summer 2026

Flex

Posted 5 days ago

Internship

Buffalo Grove, Illinois

In Person

Smart Summary

Responsibilities

The intern will support the engineering team with continuous improvement projects and the plastic injection mold design process. Responsibilities include creating 2D and 3D models and updating process guides and design standards.

Qualifications

You are a junior or senior student pursuing a Bachelor's degree in Mechanical Engineering or a related major. You have excellent communication skills, are enthusiastic about manufacturing, and possess desired knowledge in Solidworks CAD and plastic injection molding processes.

Must Have Skills for ATS

Mechanical Engineering

Solidworks CAD

plastic injection molding

Job Description

Job Posting Start Date 05-15-2026 Job Posting End Date 05-19-2026Flex 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, this Summer, we’re looking to add a Molding Engineering Intern located in our Buffalo Grove, IL site.

Reporting to the Process Engineering Manager, the student will assist with daily engineering tasks while learning, collaborating and working alongside Engineers and cross-functional teams.

What a typical day looks like:

  • Assist Engineering Team with continuous improvement project(s)
  • Attend Design Status, Customer/Internal Review and Continuous Improvement  Meetings
  • Support plastic injection mold design process
  • Complete assigned work orders and provide 2D and 3D models
  • Update design guidelines and standards
  • Update to documentation for Process Guides, CCL’s to stay compliant

Student qualities we’re seeking for this internship assignment:

  • Junior/Senior student pursuing Bachelors degree in Mechanical Engineering or related major
  • Enthusiastic about working in a manufacturing environment
  • Highly collaborative, creative and excellent communication skills
  • Solidworks CAD and troubleshooting knowledge highly desired
  • Prior internship experience with plastic injection molding process strongly preferred

Internship Program Requirements:

  • Available to work 40 hours/week (in-person) for 10-12 week Summer assignment
  • Currently enrolled in 4-year accredited university
  • 3.0 minimum GPA
Pay Range (Applicable to Illinois)

$16.98 USD - $23.35 USD Hourly

Job Category

InternRelocation: Not eligible

Is Sponsorship Available?

NoFlex 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).

Flex

Flex (Reg. No. 199002645H) is the global manufacturing partner of choice that helps leading brands design, build, and manage products that improve the world. For more information, visit flex.com. We love to hear your thoughts, comments and ideas so feel free to like, share and comment away. Any question or opinion is good to go as long as it is respectful and falls within the scope of this page. Derogatory comments, spam and unsolicited selling are not welcome here and such posts will be removed.

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