1+ years of experience in a manufacturing or machining environment (or equivalent technical training)
Basic understanding of CNC machining processes and production workflow
Prior CNC machine operation experience (mills, lathes, or multi-axis machines)
Experience in metal finishing, deburring, or post-machining polishing
Familiarity with G-code fundamentals and machine setup concepts
Experience with production documentation, routers, and inspection records
Exposure to lean manufacturing or continuous improvement practices
Must be a US Citizen (ITAR requirements)
Must be at least 18 years of age
Ability to meet pre-employment screening requirements
Ability to successfully complete a 90-day probationary period
Willingness to follow all safety, quality, and manufacturing procedures
Ability to work assigned shifts, including overtime as needed
Full description
Shift/Hours: Hiring ALL Shifts (Day shift weekday, Day shift weekend, Night shift weekday) Location: Boonville, MO (onsite) Department: CNC Reports To: Manufacturing Supervisor Employment Type: Full-Time
Position Summary
The CNC Operator attends to CNC machines to perform a variety of related tasks supporting machining operations. This role is responsible for loading, tending, inspecting, adjusting, and maintaining CNC equipment while ensuring safety, quality, and production targets are consistently achieved.
Core ResponsibilitiesCNC Machine Operation & Production
Load and tend CNC machines to perform turning, threading, drilling, reaming, boring, and related machining functions.
Start and observe machine operations to detect malfunctions or out-of-tolerance machining.
Make necessary cutting tool offsets and machine adjustments to maintain part quality.
Identify and replace broken or worn tools.
Grind, file, sand, and deburr parts to remove defects and smooth uneven surfaces.
Meet or exceed predetermined daily, weekly, and monthly production goals.
Quality Inspection & Documentation
Perform inspection and gauging operations to ensure quality standards and specifications are met.
Use inspection tools including Micro-Hite, calipers, micrometers, and other gauges.
Maintain responsibility for visual and physical quality of parts being loaded and unloaded.
Read blueprints, sketches, drawings, and specifications to determine tolerances and dimensions.
Complete inspection records and document part quality accurately.
Equipment Maintenance & Workplace Organization
Perform necessary equipment maintenance including topping off fluids and cleaning machines.
Maintain an organized and clean work area.
Move materials as required to support workflow.
Comply with organizational standards and legal regulations to maintain a safe and healthy work environment.
Safety, Compliance & Professional Conduct
Follow established safety procedures and wear required PPE in designated areas.
Respond professionally to process improvements and operational changes.
Demonstrate manual dexterity and cognitive reasoning to follow production work instructions.
Perform repetitive tasks while maintaining quality and focus.
QualificationsEducation & Experience
High school diploma or GED
1+ years of experience in a manufacturing or machining environment (or equivalent technical training)
CNC Operator - ON THE JOB TRAINING at CMMG (Boonville, MO, USA) — aijobsearch
Basic understanding of CNC machining processes and production workflow
Prior CNC machine operation experience (mills, lathes, or multi-axis machines)
Experience in metal finishing, deburring, or post-machining polishing
Familiarity with G-code fundamentals and machine setup concepts
Experience with production documentation, routers, and inspection records
Exposure to lean manufacturing or continuous improvement practices
Skills & Attributes
Ability to read and interpret blueprints, technical drawings, and specifications
Proficiency in using precision measuring instruments (calipers, micrometers, height gauges such as Micro-Hite)
Basic computer and math skills, including ability to perform measurements and tolerances
Strong attention to detail with a focus on quality and precision
Mechanical aptitude and problem-solving ability
Manual dexterity and ability to perform repetitive machining and inspection tasks
Ability to meet production targets in a fast-paced manufacturing environment
Strong work ethic, reliability, and accountability
Ability to work both independently and collaboratively
Requirements
Must be a US Citizen (ITAR requirements)
Must be at least 18 years of age
Ability to meet pre-employment screening requirements
Ability to successfully complete a 90-day probationary period
Willingness to follow all safety, quality, and manufacturing procedures
Ability to work assigned shifts, including overtime as needed
Additional Expectations
Maintain a positive, professional attitude and strong attention to detail
Follow standardized work instructions and adhere to quality standards
Willingness to learn machine setups, offsets, and advanced machining techniques
Support continuous improvement initiatives and efficiency efforts
Communicate effectively with supervisors, programmers, and quality personnel
Maintain a clean and organized work area (5S standards)
Working & Physical RequirementsPhysical Demands
Ability to stand for extended periods (8–12 hours per shift)
Frequent use of hands for operating controls, tools, and measuring instruments
Ability to lift and carry up to 40 lbs (occasionally more with assistance)
Ability to perform repetitive motions including bending, reaching, and twisting
Strong hand-eye coordination and fine motor skills for precision work
Work Environment & PPE
Work performed in a manufacturing environment with exposure to CNC machinery, moving parts, and moderate to high noise levels
Exposure to metal shavings, cutting fluids, oils, and industrial lubricants
Required use of personal protective equipment (PPE) including safety glasses, hearing protection, gloves, and steel-toe footwear
Must adhere to all OSHA safety standards and company policies
Climate may vary depending on facility conditions
The job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change, or new ones may be assigned at any time with or without notice.
CMMG provides equal employment opportunities (EEO) to all applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Candidates must possess proper authorization to work in the United States and, where applicable, be able to possess technical data controlled by the U.S. State Department under the International Traffic In Arms Regulations (ITAR) in 22 CFR 120-130, or by the U.S. Commerce Department under the Export Administration Regulations (EAR) in 15 CFR chapter VII, subchapter C, Parts 730-774.