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CNC Machinist III

Ducommun, Inc.Saint Croix Falls, WI🇺🇸United StatesPosted 12 Sept 2026

Why This Role Stands Out

Elevate your career as a CNC Machinist III at Ducommun, a historic leader in aerospace and defense manufacturing, where you'll hone advanced machining skills and contribute to critical projects. You'll thrive here if you possess strong technical expertise and a passion for precision, with opportunities for growth and a supportive team environment. Apply now to join a company recognized for its excellent culture and commitment to employee development.

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Saint Croix Falls, WI, United States
Posted
10 hours ago
CADCAMCNC

Job Description

CNC Machinist III

The CNC Machinist III is responsiblefor independently setting up, operating, and troubleshooting complex machiningprocesses. This role requires advanced technical expertise, precisionmeasurement skills, and strong problem-solving abilities to consistentlyproduce high-quality parts that meet specifications.

Who are we?

Founded in 1849, Ducommun is the oldest company in California. Starting as a hardware supply store during the California Gold Rush and eventually assisted in the birth of the aerospace industry in Southern California by providing aircraft aluminum to early aerospace pioneers like Lindbergh, Douglas and Lockheed.

Today Ducommun is a global provider of innovative manufacturing solutions for customers in the aerospace, defense and industrial markets. We specialize in electronic and structural systems, producing complex products and components for commercial aircraft platforms, mission-critical military and space programs, and sophisticated industrial applications.

Our facility in St. Croix Falls, WIoffers a range of ammunition handling & delivery systems supporting thefull spectrum of small and medium caliber weapons.

Why Ducommun?
  • Excellent company culture - as recognized by Newsweek's Top 100 Most Loved Workplaces
  • Clean and climate controlled working environment
  • Opportunity for career growth
  • Great benefits including paid vacation and sick time, 401K match, Employee Stock Purchase Program, annual bonus plan, and tuition reimbursement
Essential Functions:

Standard knowledge of G-codes, write or edit G-code, program adjustments, set up complex tooling, align fixtures, and set precise work offsets with little to no supervision.

Perform independent tool changes, selecting proper cutting tools, loading raw materials in CNC mills and/or lathes.

Deep understanding of speeds, feeds, and metal properties.

Identify surface finish issues, tool wear, or dimensional drift and adjust speeds and feeds. to fix them. Finding the root cause of a tough issue and figuring out a smart way to fix it.

Read and interpret complex 2D and 3D technical drawings, geometric dimensioning, and tolerancing.

Adjust quickly to new tools, changing environments, and emerging trends.

Diagnose sudden mechanical or programming errors quickly to reduce machine downtime.

Working knowledge of CAD/CAM software to review and verify toolpaths and simulate operations for process optimization.

Use precise inspection tools like micrometers, calipers, depth gauges, and optical comparators to verify that parts meet exact tolerances.

Perform in-process inspections to ensure parts stay within tight production tolerances.

Maintain strict safety and quality standards to avoid costly scrap and errors.

Responsible for protecting and maintaining all Controlled Unclassified Information (CUI) appropriately to prevent unauthorized access, dissemination, or use of this information, documentation, or products; including authorized and proper use of such information in regard to marking, storing, transmitting, and destruction of data.

Support all visitors and security policies to protect ITAR/EAR/CMMC/CUI information, documents, products, etc. from unauthorized access by informing management immediately of any concerns.

Responsible for the proper handling and management of hazardous waste generated in employee's work area.

Performs other duties as assigned.

Regular and acceptable attendance is an essential function of this job.

Required Skills and Qualifications:

Serves as a technical resource for CNC machining, providing guidance and mentorship to fellow machinists and machine operators and supporting the resolution of complex machining and production issues.

Communicate and collaborate effectively with shift supervisors and diverse groups to reach shared goals through innovative ideas and approaches.

Ability to independently diagnose complex machining problems with advanced mechanical reasoning and troubleshooting

Ability to interpret technical data and make sound decisions

Ability to act on constructive feedback and communicate technical issues and recommended solutions to different audiences such as supervisors, engineers, and machinists

Able to analyze data, solve complex problems, and make logical decisions, share ideas clearly through speaking and writing, while actively listening to others.

Organize workflow efficiently to meet strict production deadlines.

Plan schedule in advance so tasks are completed timely.

CAD/CAM software knowledge to verify toolpaths and simulate operations is a plus.

Local to the St. Croix Falls, WI facility.

Required Experience and Education:

High school diploma or equivalent experience required.

5+ years of relevant CNC machining experience, or an equivalent combination of formal machining education, certification, and demonstrated advanced technical proficiency.

Licenses, Certifications, etc.

Related certifications preferred

Physical Requirements:

Able to stand and walk frequently.

Able to sit occasionally.

Able to bend, squat and kneel occasionally.

Able to use fine manipulation continuously.

Able to reach outward occasionally and reach above shoulder occasionally.

Able to drive occasionally.

Able to read and write in English.

Able to push/pull and lift/carry up to 50 lbs. occasionally.

Work Environment and Safety Equipment Required:

Manufacturing Shop environment with open floor space, can be noisy at times.

Able to work onsite per business needs and per employee's standard hours.

Able to wear required Personal Protective Equipment constantly.

Ability to travel occasionally.

ITAR/EAR Compliance:

This position requires access to export-controlled information and/or hardware, and candidates must be U.S. Persons that comply with all U.S. Export control laws and regulation. As such, U.S. citizenship, U.S. lawful permanent resident status, protected person status under 8 U.S.C. 1324b(a)(3), or the ability to meet ITAR and EAR requirements is required.

Equal Opportunity EmployerVeterans/Disabled

1105 E Pine St
St Croix Falls, Wisconsin, 54024
United States

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