Tool and Fixture Design Engineer

Your Job

Molex, LLC is seeking a Tool & Fixture Design Engineer to join our team in Hudson, WI. You may not see our name on the shelves, but our electronic solutions are inside the products you use every day. We work together with the world's innovators to design and manufacture electronic solutions that solve complex technical challenges.

The Tool & Fixture Design Engineer is responsible for designing, developing, and implementing manufacturing fixtures, tooling, and work holding solutions that support production, assembly, testing, inspection, and new product introduction (NPI) activities. This role works closely with manufacturing, quality, production, and product engineering teams to improve safety, quality, productivity, and process repeatability.

This position will also partner with our Automation team to improve current and future automated equipment.

Molex is an industry leader in transforming optical network infrastructure with an unwavering commitment to speed, reliability, and performance. We proudly engineer high-performance systems for critical, fast-growing industries including data centers, telecom, medical, and industrial automation. Our team develops an advanced portfolio of optical solutions, ranging from cutting-edge optical connectivity products-such as expanded beam connectors, fiber management, adapters, and hybrid copper/fiber solutions for medical systems-to end-to-end optoelectronic solutions featuring cages, connectors, optical transceivers, and cable assemblies.

Supporting extreme data rates from 100 Mbps to 1.6 Tbps across long-haul distances up to 80km+, we deliver complete wavelength management and turnkey OEM solutions. Come join Molex and help build the future of global connectivity.

• Design and develop production fixtures, assembly tooling, test fixtures, inspection gauges, and work holding devices.
• Create detailed 3D CAD models, engineering drawings, and bills of materials (BOMs) for designed fixtures.
• Develop fixture concepts that improve operator ergonomics, process repeatability, and manufacturing efficiency.
• Apply Design for Manufacturing (DFM) and Design for Assembly (DFA) principles.
• Collaborate with manufacturing engineers and production teams to identify fixturing needs and process improvements.
• Troubleshoot existing tooling and fixtures to resolve production issues.
• Support continuous improvement initiatives focused on cycle time reduction, quality improvement, and cost savings.
• Conduct root cause analysis of fixture-related problems and implements corrective actions.
• Support NPI projects through fixture and tooling development from concept through production launch.
• Participate in process development, pilot builds, and validation activities.
• Develop prototype fixtures and assist with process qualification.
• Generate and maintain engineering documentation including drawings, specifications, assembly instructions, and change notices.
• Support fixture qualification, gage R&R studies, and process validation activities.
• Ensure all designs comply with company standards, safety requirements, and applicable industry regulations.

• Bachelor's degree in Mechanical Engineering, Manufacturing Engineering, or related engineering discipline.
• Proficiency with CAD software such as Solid Works, Creo, Inventor, or AutoCAD.
• Experience creating detailed manufacturing drawings and GD&T
• Understanding of machining, fabrication, welding, additive manufacturing, and assembly processes.
• Strong problem-solving and analytical skills.
• Effective communication and collaboration skills.

• 3+ years of experience in fixture design, tooling design, manufacturing engineering, or related field
• Proficiency with Solid Works
• Experience in automated assembly systems, robotics, or industrial automation.
• Knowledge of Lean Manufacturing and Six Sigma methodologies
• Experience with vision systems, sensors, and test equipment integration.
• Familiarity with ERP and PLM systems.
• Experience in regulated industries such as medical devices, aerospace, telecommunications, or fiber optics.

This position is not eligible for VISA Sponsorship.

In order to comply with U.S. export control laws and regulations, this position requires applicants to either provide proof of U.S. citizenship or lawful permanent resident status or be eligible to receive an export authorization (a license) under the International Traffic in Arms Regulations and/or the Export Administration Regulations.

All Koch…