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Molding Engineer Jobs in Missouri (NOW HIRING)

Internship

Perryville, MO · On-site

$16.25 - $21.25/hr

Engineering, including Machine Engineering, Quality Engineering, TPS Engineering, Production/Manufacturing Engineering, Mold Engineering, Pre-Production Control Center, Mold Maintenance, Machine ...

Your mission, roles and responsibilities The role of an Injection Molding Process Engineer is to verify safety and equipment uptime and decrease quality defects to the customer. They provide support ...

Quality Engineer

Kansas City, MO · On-site

$70 - $100/hr

Our client is seeking an experienced Quality Engineer to ensure that plastic injection molded components meet all customer, internal, and regulatory requirements. This role supports production ...

Quality Engineer

Riverside, MO · On-site

$70 - $90/hr

US Farathane is seeking an experienced Quality Engineer for ensuring that plastic injection molded components meet all customer, internal, and regulatory requirements. This role supports production ...

Work with production injection molding process technicians to reduce downtime, scrap and improve process efficiency. Support the engineering change management process. Update manufacturing routines ...

Quality Engineer

Riverside, MO · On-site

$69K - $89K/yr

US Farathane is seeking an experienced Quality Engineer for ensuring that plastic injection molded components meet all customer, internal, and regulatory requirements. This role supports production ...

Quality Engineer

Riverside, MO · On-site

$69K - $89K/yr

US Farathane is seeking an experienced Quality Engineer for ensuring that plastic injection molded components meet all customer, internal, and regulatory requirements. This role supports production ...

Our client is seeking an experienced Quality Engineer to ensure that plastic injection molded components meet all customer, internal, and regulatory requirements. This role supports production ...

Knowledge of engineering grade machined and molded polymers and metals * Knowledge of metal properties: conductivity, corrosion, machining methods, Plating options * Familiar with contact ...

Knowledge of engineering grade machined and molded polymers and metals * Knowledge of metal properties: conductivity, corrosion, machining methods, Plating options * Familiar with contact ...

Showing results 21-40

Molding Engineer information

See Missouri salary details

$39.4K

$77.5K

$117.7K

How much do molding engineer jobs pay per year?

As of Sep 3, 2026, the average yearly pay for molding engineer in Missouri is $77,541.00, according to ZipRecruiter salary data. Most workers in this role earn between $66,100.00 and $82,100.00 per year, depending on experience, location, and employer.

What is a molding engineer?

Molding Engineers are specialized professionals who design, develop, and optimize molding processes used to manufacture parts and products, typically from plastics or other moldable materials. They work with various molding techniques, such as injection molding, compression molding, and blow molding, to ensure quality, efficiency, and cost-effectiveness in production. Their responsibilities include selecting appropriate materials, designing molds, troubleshooting defects, and improving existing processes. Molding Engineers often collaborate with product designers, quality engineers, and production teams to meet manufacturing goals.

What are the key skills and qualifications needed to thrive as a molding engineer?

To thrive as a Molding Engineer, you need a strong background in mechanical or manufacturing engineering, with expertise in injection molding processes and materials science, often supported by a relevant engineering degree. Familiarity with CAD software, mold flow analysis tools, and quality control systems is typically required, along with certifications like Six Sigma or RJG Master Molder. Problem-solving, attention to detail, and effective communication are crucial soft skills for collaborating with cross-functional teams and ensuring process optimization. These skills and qualifications are vital for producing high-quality molded products efficiently and maintaining consistent manufacturing standards.

What are some common challenges a molding engineer faces when optimizing production processes?

Molding Engineers often encounter challenges such as maintaining consistent quality across large production runs, minimizing cycle times, and troubleshooting defects like warping or sink marks. They must also balance material costs with performance requirements and adapt to changes in tooling or equipment. Effective collaboration with production teams, tool designers, and quality assurance is essential to identify root causes and implement solutions quickly, ensuring smooth and efficient operations.

What is the difference between Molding Engineer vs Tooling Engineer?

AspectMolding EngineerTooling Engineer
Primary FocusDesign, develop, and optimize molding processes for manufacturing plastic or metal partsDesign, develop, and maintain tools and dies used in manufacturing processes
Required SkillsKnowledge of molding machines, materials, process parametersExpertise in tool design, CAD/CAM, and machining
Work EnvironmentManufacturing plants, quality labsTool rooms, machine shops, manufacturing facilities
Common CertificationsManufacturing or process engineering certificationsTool design, CAD/CAM certifications

While both roles are integral to manufacturing, Molding Engineers focus on the overall molding process and product quality, whereas Tooling Engineers specialize in designing and maintaining the tools used in production. Both roles require technical skills and often collaborate to ensure efficient manufacturing operations.

Is molding engineer making a good career?

A molding engineer is a specialized role in manufacturing focused on designing and optimizing plastic and metal molding processes. It offers steady employment opportunities, especially in industries like automotive, aerospace, and consumer goods, with potential for advancement and skill development in CAD, process control, and quality assurance. The career can be financially rewarding and stable for those with technical expertise and relevant certifications.

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

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

What are popular job titles related to Molding Engineer jobs in MO?

For Molding Engineer jobs in MO, the most frequently searched job titles are:

Infographic showing various Molding Engineer job openings in Missouri as of August 2026, with employment types broken down into 89% Full Time, 8% Part Time, and 3% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $77,541 per year, or $37.3 per hour.

Design Engineer

American Plastics LLC

Jefferson City, MO • On-site

Full-time

Medical, Dental, Retirement, PTO

Re-posted 26 days ago


Job description

Job Type
Full-time
Description
American Plastics, headquartered in St. Louis, Missouri, is a leading designer and manufacturer of innovative plastic-injection molded products for the household & garage storage and commercial cleaning end-markets.
We are seeking a skilled Design Engineer specializing in plastics to join our team at our Innovation Center, in Jefferson City, Missouri location. The ideal candidate will be responsible for designing and developing plastic components and products, ensuring functionality, manufacturability, and cost-effectiveness. The role involves collaborating with cross-functional teams, utilizing CAD software, and staying updated on industry trends and technologies. This position will report to the Vice President of Engineering.
Product Design: Conceptualize, design, and develop plastic components and products according to project requirements, considering factors such as functionality, aesthetics, manufacturability, and cost-effectiveness.
CAD Modeling: Utilize CAD software (e.g., SolidWorks, CATIA) to create detailed 3D models and 2D drawings of plastic parts and assemblies.
Prototyping: Oversee the prototyping process, including selecting appropriate materials, collaborating with prototype technicians, and validating designs for fit, form, and function.
Material Selection: Evaluate and select suitable plastic materials based on performance requirements, environmental factors, and cost considerations.
Design Optimization: Continuously improve designs for efficiency, performance, and cost reduction through analysis, simulation, and testing.
Manufacturability: Collaborate with manufacturing teams to ensure designs are optimized for production processes such as injection molding, extrusion, and thermoforming.
Quality Assurance: Work closely with quality control teams to establish and implement quality standards for plastic components and products, ensuring compliance with industry regulations.
Documentation: Prepare and maintain comprehensive design documentation, including technical drawings, specifications, and design change records.
Cross-functional Collaboration: Collaborate effectively with cross-functional teams including product management, manufacturing, quality assurance, and procurement to achieve project goals and deadlines.
Research and Innovation: Stay updated on industry trends, emerging technologies, and best practices in plastic design, and incorporate innovative solutions into product development processes.
Requirements
• Bachelor's degree in mechanical or plastics Engineering.
• Experience of hands-on injection molding experience a plus.
• 3 + Years experience with Product Design of plastic injection molded products for consumer packaged goods
• SolidWorks knowledge.
• Experience with prototyping techniques and rapid iteration processes.
• Excellent problem-solving skills and attention to detail.
• Effective communication and collaboration skills with the ability to work in cross-functional teams.
• Familiarity with design for manufacturability (DFM) and design for assembly (DFA) principles.
• Ability to prioritize tasks and manage multiple projects simultaneously.
• Strong communication skills.
If you are interested in joining the American Plastics team and want to work in a fast-paced, progressive environment, we want to hear from you. We offer a competitive salary, full benefit package including medical/dental, 401k, and paid vacation.