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Plastics/Polymer Engineer Jobs in O'Fallon MO

today 1. Injection Mold Design Engineer - Automotive Plastics

Engineering (Injection Molding, Plastics/Polymer Engineer, Manufacturing Engineer, Automotive Engineering), Manufacturing / Production (Injection Molding, Manufacturing Engineer, Automotive Engineering)

Jobtailor is seeking a Manufacturing Engineer with strong expertise in plastics and injection molding to optimize part designs and...

Injection Mold Design Engineer - Automotive Plastics Job

Listing for: Jobtailor
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Newest Plastics/Polymer Engineer Postings on this site:
1 day ago Business Development Manager (Remote / Online) - Candidates ideally in Wisconsin, USA

Engineering (Materials Engineering, Process Engineer, Plastics/Polymer Engineer, Product Engineer)

Business Development Manager | Polymers, Coatings & Extrusion - A global materials manufacturer is expanding its commercial team and...

Business Development Manager Job

Listing for: Plastic Executive Recruiters
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3 weeks ago Senior Injection Molding Engineer – Tooling & Process Job in Elgin, Illinois, USA

Engineering (Injection Molding, Manufacturing Engineer, Plastics/Polymer Engineer, Quality Engineering)

HARTING Technology in Elgin, Illinois is seeking an experienced Injection Molding Engineer to manage operations in injection molding....

Senior Injection Molding Engineer – Tooling & Process Job

Listing for: HARTING Technology
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Recent Jobs Posted for towns/cities you may like to view:
3 days ago Field Service Engineer (Remote / Online) - Candidates ideally in Springfield, Illinois, USA

Engineering (Medical Device Industry, Biomedical Engineer)

Role - Field Service Engineer for biomedical instruments, focusing on installation, calibration, troubleshooting, repair, and...

Field Service Engineer Job

Listing for: Scorpion Therapeutics
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5 days ago Automated Tester; Expert Job in Northern, Kentucky, USA

Engineering, IT/Tech

Senior/Expert Test Engineer supporting a large government technical development program focused on - Authentication, Authorization,...

Automated Tester; Expert Job

Listing for: Rct Systems, Inc.
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5 days ago Site Quantity Surveyor Job in Alley, Missouri, USA

Construction (Building & Residential Construction, Quantity Surveyor), Engineering (Quantity Surveyor)

Location: Alley - Requirements: - 5+, 7+, 10+years’ experience in all Quantity Surveying and Cost Control issues, including conducting of...

Site Quantity Surveyor Job

Listing for: ECG Engineering Consultants Group S.A.
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5 days ago LĂ­der de Proyectos Ambientales Job in Peru, Illinois, USA

Engineering (Environmental Engineer)

Job Description Actualmente, se ha generado una oportunidad para integrarse a AtkinsRéalis Perú como Líder de Proyectos Ambientales -...

LĂ­der de Proyectos Ambientales Job

Listing for: Snc-Lavalin
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5 days ago Technical Sales & Design Engineer Job in Arlington Heights, Illinois, USA

Engineering (Systems Engineer, Sales Engineer)

place 60004 Arlington Heights 31.07.2026 WITRON Integrated Logistics, Inc - Join WITRON as Technical Sales & Design Engineer! - The...

Technical Sales & Design Engineer Job

Listing for: emplify GmbH
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5 days ago Structural Engineer Internship: Spokane Job in Northern, Kentucky, USA

Engineering

We are accepting applications for part - time internships starting in the Fall of 2026, as well as full - time internships starting in...

Structural Engineer Internship: Spokane Job

Listing for: Coughlin Porter Lundeen
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5 days ago National Water Treatment Technical Expert Job in Northern, Kentucky, USA

Engineering (Water Engineer, Environmental Engineer, Water Management, Wastewater Treatment)

National Water Treatment Technical Expert Job Description - Founded in 1919, KJ has always looked to the future. With a talented team of...

National Water Treatment Technical Expert Job

Listing for: Kennedy Jenks
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5 days ago Engineer (Transportation Job in Marion, Illinois, USA

Engineering (Civil Engineering, Engineering Design & Technologists, Environmental Engineer, Environmental Compliance & Protection)

Horner & Shifrin is seeking a full - time Engineer to work in our Transportation business unit. This is an entry - level position and...

Engineer (Transportation Job

Listing for: Horner-
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3 days ago Mechanical Lab Internship- Summer Job in Ashland, Kentucky, USA

Engineering (Mechanical Engineer, Quality Engineering)

Career Opportunities: - Mechanical Lab Internship - Summer 2027 (2605) - Requisition - 2605 - Posted - 09/10/2026 - R&D Mechanical...

Mechanical Lab Internship- Summer Job

Listing for: FALL CREEK FARM & NURSERY
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5 days ago Software Engineer, Electrical Engineering, Electronics Engineer Job in Bloomingdale, Illinois, USA

Engineering (Electrical Engineering, Electronics Engineer)

Job Details: - Level: Experienced | - Job Location: - BLOOMINGDALE, IL 60108 | Position Type: - Full Time | Salary Range: $65,000.00 -...

Software Engineer, Electrical Engineering, Electronics Engineer Job

Listing for: Del Medical
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5 days ago Mechanical Engineering Co-op_Summer 2027 Job in Newburg, Kentucky, USA

Engineering (Mechanical Engineer)

At GE Appliances, a Haier company, we come together to make "good things, for life." As the fastest - growing appliance company...

Mechanical Engineering Co-op_Summer 2027 Job

Listing for: Haier US Appliance Solutions, Inc.
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3 days ago Sr Staff Engineer, SoC RTL Design Job in California, Missouri, USA

Engineering (Hardware Engineer, Systems Engineer, Electronics Engineer)

Tenstorrent is leading the industry on cutting - edge AI technology, revolutionizing performance expectations, ease of use, and cost...

Sr Staff Engineer, SoC RTL Design Job

Listing for: Tenstorrent
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