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Mateo Vargas

CNC Machinist
Detroit, MI, United States

Professional Summary

CNC machinist with more than ten years holding tight tolerances on production and prototype parts for automotive and industrial customers across metro Detroit. Comfortable programming and running Fanuc and Haas mills and lathes in Mastercam, reading GD&T prints, and writing setup sheets the next shift can follow without a recut. Known for clean first-article packages, calm troubleshooting when a tool wears mid-run, and keeping the cell 5S-ready so inspectors are not hunting gauges. PTC-style shop discipline: controlled tooling, documented offsets, and a habit of catching drift before it becomes scrap.

Employment History

Senior CNC Machinist
Great Lakes Precision Works · Detroit, MI
2021 · Present
Program and run 3- and 4-axis Fanuc and Haas mills and lathes in Mastercam for aluminum, steel, and stainless lots, holding plus or minus 0.0005 in. on critical bores. Own first-article inspection packages with calipers, micrometers, and CMM assist, cutting average FAIR turnaround from two shifts to one. Write setup sheets and tool lists that dropped changeover time about 18 percent and kept scrap under 1.2 percent on repeat jobs. Lead 5S walks and tooling audits so the next shift starts with labeled offsets, a clean vise, and the current print at the machine.
CNC Machinist
Motor City Tooling Co. · Warren, MI
2017 · 2021
• Ran repeat fixture and prototype jobs on Haas VF mills and lathes from customer prints, holding GD&T callouts on mating faces for tier suppliers. • Built and revised Mastercam toolpaths with the programmer, cutting cycle time about 12 percent on a high-volume bracket family. • Checked in-process parts with micrometers, bore gauges, and height stands, and stopped two lots before they left the cell out of spec. • Kept offset logs and tool-life notes so second shift could pick up a warm machine without reshooting the first piece.
Machine Operator Apprentice
Riverside Fabrication · Dearborn, MI
2014 · 2017
• Loaded, deburred, and staged parts on manual and basic CNC saws, mills, and presses under a journeyman machinist. • Learned blueprint reading, speed and feed basics, and how to use calipers and micrometers before a part left the bench. • Kept the bay swept, tools shadowed, and coolant topped as part of the shop 5S routine on every shift. • Finished the Macomb CNC certificate while working nights, then moved onto programmed Haas work.

Education

Certificate in CNC Machining Technology
Macomb Community College · Warren, MI
2012 · 2014
High School Diploma
Cass Technical High School · Detroit, MI
2006 · 2010

Skills

Mastercam
Fanuc and Haas controls
GD&T, blueprint reading, tight-tolerance milling and turning, first-article inspection, setup sheets, lean 5S, calipers, micrometers, CMM assist