Senior Machine Design Engineer

Double E Company, LLC; Neenah (WI); On-site; USD 90,000 - 130,000; Full time

Job summary

Double E Company, LLC in Appleton, WI, seeks a Sr. Design Engineer to own major product lines (core cutter, slabber, roll stands) and lead new product development. You will partner with Territory Managers, Product Engineers, and Production teams to ensure designs meet customer needs and internal standards.

You will drive retrofits, maintain SOPs, and mentor junior designers, while collaborating across functions to meet timelines and quality goals. Travel up to 10% for reviews and installations.

Qualifications

• Mechanical Engineering degree or equivalent work experience.
• 5–10 years of industry experience.
• Proficient in 3D CAD, preferably Inventor.
• Deep understanding of fabrication methods (CNC machining, casting, injection molding).
• Experience driving New Product development and design enhancements.
• DFM (Designed for Manufacturing) compliance experience.

Responsibilities

• Review, edit, and execute all new orders for assigned product lines ensuring designs meet customer specs and internal standards.
• Act as main point of contact for all engineering-related requests for pre-quotes, configuration, models, etc...
• Collaborate with Operations on prioritization, resource assignment, and timelines to meet business needs.
• Maintain SOPs, Technical Construction Files/Summaries for Appleton products.
• Drive quality improvement and cost reduction initiatives on new and existing designs.
• Mentor junior staff on design excellence and cross-functional collaboration.
• Act as backup to Electrical Controls Engineer responsibilities.
• Travel ~10% of the time for customer review, installation, and service.

Skills

3D CAD

Inventor

New product development

DFM

Manufacturing knowledge

Cross-functional collaboration

Quality improvement

Mentoring

Education

Bachelor's degree in Mechanical Engineering

Tools

Autodesk Inventor

Job description

Description

About Double E

Double E is a global manufacturing company with more than 50 years of innovation behind us and is proud to be a trusted name in web handling and converting. Headquartered in West Bridgewater, MA with Production Plants across North America and Italy, we build high-performance equipment and engineered solutions that keep modern manufacturing moving. Our products—from core chucks and shafts to safety chucks, rollers, web guides, and material handling systems—help customers boost speed, improve safety, and solve tough production challenges across packaging, tissue, labels, film, and more.

If you’re excited by real world engineering, hands on problem solving, and the chance to help shape what’s next, Double E is a place to build an impactful career.

Learn more about Double E and all our product offerings here.

About the role:

Reporting to the Engineering Manager, The Sr. Design Engineer is the technical owner of our major product lines (core cutter, slabber, roll stands) and any new product development in our Appleton, WI location. You will partner with Territory Managers, Product Engineers, and Production team members to review sales orders and ensure designs meet customer needs and internal standards. You will oversee and execute any retrofits or modifications as needed. Essentially, you are the technical checkpoint for engineering to release to production.

We are looking for someone who holds the inventor mindset, is customer obsessed, acts with a high degree of urgency, and values a collaborative approach to creative problem solving.

Requirements

What you’ll do:

• Review, edit, and execute all new orders for assigned product lines ensuring designs meet customer specs and internal standards.
• Act as main point of contact for all engineering-related requests and questions for pre-quotes, configuration, models, etc...
• Collaborate with Operations on prioritization, resource assignment, and timelines to meet the needs of the business.
• Maintain SOPs, Technical Construction Files/Summaries for all required Appleton products.
• Drive quality improvement and cost reduction initiatives on all new and existing designs.
• Serve as the go-to knowledgebase for any external customers and internal service/assemblers with questions and issues.
• Mentor junior staff on design excellence, from concept through production, reinforcing technical rigor, cross-functional collaboration, and adherence to Double E engineering principles.
• Act as backup, when needed, to Electrical Controls Engineer responsibilities.
• Travel ~10% of the time for customer review, installation, and service.

About you:

• Mechanical Engineering degree, or sufficient work experience in Mechanical Design Engineering.
• Proficient in 3D CAD – ideally knowledgeable on Inventor.
• 5 – 10 years of industry experience.
• Deep understanding of fabrication methods (CNC machining, sand casting, injection molding etc...)
• Demonstrated ability to drive New Product development and design enhancements.
• Entrepreneurial mindset with an understanding of how engineering design and quality directly connect to revenue.
• Successful record of accomplishment of DFM (Designed for Manufacturing) compliance.

Bonus Points:

• Prior web handling and manufacturing converting industry experience.
• Deep understanding of electromechanical design and assembly.