Thermoforming Tool Design Engineer
Automate your job search with Sonara.
Submit 10x as many applications with less effort than one manual application.1
Reclaim your time by letting our AI handle the grunt work of job searching.
We continuously scan millions of openings to find your top matches.
Overview
Job Description
Thermoforming Tool Design Engineer
Location: Arnold, MO
Sinclair & Rush is a global manufacturer of plastic, rubber, and foam products, serving a wide range of industries. We are looking for a hands-on Thermoforming Tool Design Engineer to support our growing operations. This role works closely with production, engineering, and machining teams to design and develop tooling that supports efficient, high-quality manufacturing.
Key Responsibilities
- Design thermoforming molds, trim tools, fixtures, and related components using 3D CAD software
- Create and maintain detailed 2D drawings and dimensional layouts in accordance with company standards
- Develop CNC machining programs (CAM) to support tool fabrication
- Select appropriate tooling materials, components, and machining methods based on application and performance needs
- Collaborate with production teams to troubleshoot tooling issues and implement design improvements
- Support new product development and tooling launches from concept through production
- Perform tooling cost analysis and provide estimates for new and revised tools
- Assist in scheduling machining and tooling resources to meet production timelines
- Establish and support production procedures, tooling standards, and quality expectations
- Participate in quality assessments and continuous improvement initiatives related to tooling performance
- Maintain accurate data within company systems, including BOMs, routings, items, and project records
Qualifications
- Bachelor's degree in Mechanical Engineering or related field, or equivalent hands-on experience
- Experience in tooling design, preferably within thermoforming or plastics manufacturing
- Proficiency in CAD software (SolidWorks or similar) and CAM programming (Mastercam preferred)
- Strong understanding of tooling materials, machining processes, and manufacturing methods
- Ability to read and interpret technical drawings and specifications
- Experience working within ERP or company database systems (BOMs, routings, projects)
- Experience with thermoforming and CNC machining processes
- Strong problem-solving skills and attention to detail
- Ability to manage multiple projects and priorities in a fast-paced environment
What We're Looking For
- Someone who enjoys working closely with production and solving real-world manufacturing challenges
- A practical, solutions-focused mindset with the ability to balance design and manufacturability
- Strong communication and collaboration across departments
What We Offer
- Competitive pay based on experience
- Comprehensive benefits package including medical, dental, and vision
- 401(k) with company match
- Paid time off and holidays
- Opportunity to work in a collaborative, hands-on manufacturing environment
Automate your job search with Sonara.
Submit 10x as many applications with less effort than one manual application.
