Manufacturing Applications Engineer

Prototek is a leading national provider of digital manufacturing services supporting both prototyping and production. Our capabilities include CNC machining, precision sheet metal fabrication, additive manufacturing, and value‑added assembly services. We serve a diverse range of end markets, including aerospace and defense, medical technology, industrial, electronics, robotics, and consumer products. Prototek operates manufacturing facilities across the United States, with locations in New Hampshire, Wisconsin, California, and Pennsylvania, complemented by a strong network of qualified domestic and international manufacturing partners.

Prototek is ISO 9001:2015, AS9100D, and ITAR registered, NIST 800‑171/CMMC Level 2 C3

PAO certified and fully compliant with DFARS requirements. For more information, visit

The Manufacturing Applications Engineer supports customer growth by providing technical expertise across proposal development, estimating, and manufacturing execution. This role works closely with sales, estimating, engineering, and operations teams to develop competitive, manufacturable solutions for customer requirements. The position applies practical manufacturing knowledge, CAD and DFM skills, and cost awareness to support RFQs, improve win rates, and ensure successful transition of work into production while maintaining Prototek’s standards for quality, delivery, and customer satisfaction.

• Apply working knowledge of common manufacturing methods and materials to support manufacturable solutions
• Interpret and extract information from CAD models and drawings (Solid Works or similar preferred), including basic GD&T requirements
• Support review of job cost versus estimate to improve future quoting accuracy
• Provide technical input to sales and estimating teams to support competitive proposals
• Offer practical DFM guidance to customers and internal teams
• Support proposal and RFQ development for assigned customers in collaboration with sales and estimating teams
• Provide technical support to resolve customer challenges and support successful order placement
• Assist in developing estimating capabilities through knowledge sharing and technical guidance
• Support new customer development through technical research and customer engagement
• Respond to new customer inquiries and route opportunities appropriately
• Work with sales/estimating teams to support RFQ prioritization and technical evaluation
• Follow up with customers to understand outcomes of quoted work and support continuous improvement
• Participate in assigned customer account engagement, including calls, emails, and occasional site visits

When assigned to support a site or project, assist with defined objectives, including:

• Verifying work instructions and standard processes align with customer requirements
• Supporting knowledge transfer between locations or suppliers
• Assisting with productivity, quality, and delivery improvement initiatives
• Escalating operational issues or delays to appropriate stakeholders
• Supporting safety, organization, and quality expectations on the shop floor
• Support supplier and partner evaluation related to lead time, pricing, and quality performance
• Perform work in a safe and responsible manner
• Support safety, quality, and competency training initiatives
• Contribute to a positive, collaborative team culture
• Provide guidance to teammates to support successful job execution

• Bachelor’s degree in mechanical engineering or manufacturing engineering or equivalent technical discipline
• 5+ years of experience in manufacturing engineering, applications engineering, estimating, or technical sales
• Highly Preferred – Experience with Sheet Metal assemblies, end use applications in industrial/medical equipment and power supplies
• Experience in a high‑mix manufacturing environment preferred
• MRP or ERP system experience;
  Mie Trak preferred

• Ability to stand or walk for extended periods when supporting operations
• Ability to lift up to 35 lbs. occasionally
• Ability to use hands and fingers to operate computers, tools, and equipment
• Ability to visually inspect parts…