CNC Set-Up Technician

Company: DEMA Engineering
Location: Saint Louis
Posted on: February 17, 2026

Job Description:

Job Description Job Description Join a Company That Values Integrity, Teamwork, and Innovation At DEMA Engineering Co., we're committed to building a workplace rooted in honesty, respect, hard work, and teamwork. We're looking for a CNC Set-Up Technician who shares these values and is ready to contribute to a high-performance team focused on continuous improvement and cutting-edge manufacturing solutions. Position Overview The CNC Set-Up Technician must be able to troubleshoot and repair technical issues and problems with all CNC equipment. This role requires the ability to create, manage, optimize, and maintain CNC program files in G-code and Mazatrol software for mills and lathes. The CNC Set-Up Technician works closely with Manufacturing Engineering and is involved in prototype part machining and creation. Key Position Responsibilities: Program mills and lathes by entering instructions, including zero and reference points; setting tool registers, offsets, compensation, and conditional switches; calculating requirements, including basic math, geometry, and trigonometry; proving part program. Set-Up mills and lathes by installing and adjusting three-and four-jaw chucks, tools, attachments, collets, bushings, cams, gears, stops, and stock pushers; indicating vices; tramming heads Measure and evaluate parts using precision measuring devices including calipers, micrometers and gauges Verify settings by measuring positions, first-run part, and sample workpieces, adhering to international standards Read and follow blueprints, sketches, diagrams Maintain specifications by observing drilling, grooving, and cutting, including turning, facing, knurling and thread chasing operations; taking measurements; detecting malfunctions; troubleshooting processes; adjusting and reprogramming controls; sharpening and replacing worn tools Maintain equipment by completing preventive maintenance requirements; following manufacturer's instructions; troubleshooting malfunctions; calling for repairs Maintain a safe and clean working environment by complying with company procedures, rules, and regulations. Demonstrated experience with G-Code programming, MasterCam a plus Key Position Requirements: Experience with Haas, Okuma and/or Mazak preferred Minimum of 2-3 years of experience programming, set-up and operating CNC Mills and/or CNC Lathes Must be able to stand up to 8 hours a day, lift Manufacturing using Lean methodology experience preferred Physical/visual activities or demands that are commonly associated with the performance of the functions of this job include standing, lifting 40 pounds, bending, pushing, and walking. Environmental conditions commonly associated with the performance of the functions of this job include loud noises from machinery, handling chemicals, heat, and humidity. About Us: DEMA is a world leader in the development of proportioning chemical dispensers and fluid control products. Established in 1956 with headquarters in St. Louis, Missouri, DEMA has grown to include manufacturing and warehouse facilities in Missouri, Zeewolde Netherlands, and Sydney Australia. Embracing our heritage, DEMA remains owned by the Deutsch family, with active 3rd and 4th generation family members leading the company. DEMA Engineering Co., is committed to a diverse workforce and is an Equal Opportunity Employer

Keywords: DEMA Engineering, Saint Charles , CNC Set-Up Technician, Engineering , Saint Louis, Missouri