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Injection Molding Internship Jobs in Missouri (NOW HIRING)

At least 1 year of engineering experience through internships, co-ops, apprenticeships, academic ... injection molding, and material properties * Experience with product costing, supplier engagement ...

Injection Molding Internship information

What is an injection molding internship?

An Injection Molding Internship is a temporary position, often for students or recent graduates, that provides hands-on experience working with plastic injection molding processes in a manufacturing environment. Interns typically learn about machine operation, mold setup, troubleshooting, quality control, and safety protocols. This internship helps participants develop practical skills and gain insight into the manufacturing industry, preparing them for future careers as injection molding technicians, engineers, or related roles.

What are the key skills and qualifications needed to thrive as an injection molding intern?

To thrive as an Injection Molding Intern, you need a basic understanding of manufacturing processes, mechanical aptitude, and relevant coursework in engineering or plastics technology. Familiarity with injection molding machines, CAD software, and safety protocols is often expected, along with a willingness to learn specific industry certifications. Strong problem-solving skills, attention to detail, and effective communication help interns stand out in a team-oriented production environment. These competencies are critical for ensuring product quality, minimizing downtime, and supporting efficient, safe manufacturing operations.

What are some common challenges faced by interns during an injection molding internship, and how can they overcome them?

Injection molding interns often encounter challenges such as learning to operate complex machinery, understanding quality control standards, and troubleshooting minor production issues. Adjusting to a fast-paced manufacturing environment can also be demanding. To overcome these challenges, interns are encouraged to ask questions, seek mentorship from experienced technicians, and actively participate in hands-on training. Demonstrating initiative and a willingness to learn can help interns quickly build technical skills and confidence in the role.

What is the difference between Injection Molding Internship vs Injection Molding Technician?

AspectInjection Molding InternshipInjection Molding Technician
Required CredentialsTypically pursuing or recent graduate in engineering or manufacturingVocational training or technical certification, some experience
Work EnvironmentLearning-focused, supervised, entry-levelHands-on, operational, maintenance-focused
Employer & Industry UsageInternships offered by manufacturing companies for trainingFull-time role in plastic manufacturing plants

In summary, an Injection Molding Internship is a training position for students or recent graduates gaining industry experience, while an Injection Molding Technician is a full-time role responsible for operating and maintaining molding equipment. Internships serve as a stepping stone toward technician roles in the plastic manufacturing industry.

What are the most commonly searched types of Injection Molding jobs in Missouri?

The most popular types of Injection Molding jobs in Missouri are:

What are popular job titles related to Injection Molding Internship jobs in Missouri?

For Injection Molding Internship jobs in Missouri, the most frequently searched job titles are:

What cities in Missouri are hiring for Injection Molding Internship jobs?

Cities in Missouri with the most Injection Molding Internship job openings:

Infographic showing various Injection Molding Internship job openings in Missouri as of August 2026, with employment types broken down into 15% Internship, 74% Full Time, and 11% Part Time. Highlights an 95% In-person, and 5% Hybrid job distribution.

Design Engineer - Keepsakes

Hallmark

Kansas City, MO • On-site

$70 - $100/hr

Other

Medical, Retirement, PTO

This job post has expired today. Applications are no longer accepted.


Job description

The Design Engineering Team (DE) at Hallmark is a center of excellence for product engineering across Hallmark. We collaborate with key internal and external partners around the world to innovate and build future capabilities for Hallmark. Design engineers are the capability architects and builders that enable our creative counterparts to bring their artistic visions to life. We help deliver strong consumer experiences, product quality, cost-management, and design for manufacturability throughout every stage of the product discovery and development process. We're hiring a product engineer to support our growing Keepsake Ornaments business. Come join a team that has years of success emotionalizing technology as we explore and create new ways to engage and delight our consumers with heartfelt, fun, and interactive holiday products!

WHAT YOU’LL DO & HOW IT SHAPES OUR SUCCESS

As a Design Engineer for Keepsakes, you will be responsible for collaborating with a cross-disciplinary team on format, capability, and experience development for the Christmas and everyday ornament category.

You will have oversight of the engineering requirements that bring these products to life by:

  • Being the primary resource responsible for providing the technical expertise needed to discover, inspire and develop new ornament products.
  • Designing solutions that overcome technical and cost challenges within the ornament category.
  • Providing engineering guidance and direction from initial concept through product creation and manufacturing.
  • Developing specifications and directing/producing the completion of technical documents, pre-costs, bid packs and prototypes based on criteria provided by the Keepsakes product development team.
  • Partnering with and being a key linkage to external vendors and technical and innovation resources.

It is an exciting time to be part of the Keepsakes team as our ornament business continues to grow, developing innovative products that combine compelling storytelling, world-class licensing partnerships, and meaningful consumer experiences.

BASIC QUALIFICATIONS

The following are required to be considered for this role:

  • Bachelor's Degree within an Engineering field (Mechanical, Industrial, Electrical, or related field)
  • At least 1 year of engineering experience through internships, co-ops, apprenticeships, academic projects, or professional employment
  • Experience with CAD and 3D modeling tools, such as SolidWorks
PREFERRED QUALIFICATIONS

Your resume will stand out if you have the following:

  • Bachelor's degree in Mechanical Engineering, Mechatronics, Plastics or Materials Engineering, or a related field
  • At least 2 years of experience in consumer products, toys, or related product development
  • Proficiency with CAD tools such as AutoCAD and SolidWorks
  • Experience with product prototyping and design validation
  • Working knowledge of mechanical and electromechanical design, manufacturing processes, injection molding, and material properties
  • Experience with product costing, supplier engagement, and Asia-based manufacturing and supply chains
  • Strong collaboration, communication, problem-solving, and decision-making skills
ADDITIONAL DETAILS
  • This position offers a hybrid work arrangement, providing the best of both worlds: the opportunity to collaborate in person at our Kansas City, MO headquarters Tuesday through Thursday, while enjoying the flexibility to work remotely on Mondays and Fridays.
  • This is a progressive role designed to grow with you. We’ll match the job level to your skills and experience so you can hit the ground running and keep building your career.
  • Hallmark is committed to recognizing and rewarding performance.Employees areeligible for annual merit-based increases, aligned with individual and company performance.
  • In alignment with our culture of care, Hallmark offers a competitive benefits package, including medical, dentalandvisionplans,paid time off,401K withcompany match,andprofit-sharing.

Employment by Hallmark is contingent upon the signing of the Employment Agreement, signing of an agreement to arbitrate in connection with the Hallmark Dispute Resolution Program, completing Form I-9 Employment Eligibility Verification, passing the urinalysis drug screen, education verification and satisfactory reference and background checks.

Hallmark is an equalopportunityemployer. All qualified applicants will be considered for employment without regard to race, color, religion, sex, age, pregnancy, national origin, physical or mental disability, genetics, sexual orientation, gender identity, veteran status, or any otherlegally-protectedstatus. Principals only please.

HALLMARK – Because ConnectingWithEachOther Has Never Been More Important

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.

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