CNC Setup Machinist

B&B Manufacturing Co., Inc.; California (MO); On-site; USD 65,000 - 90,000; Full time

Job summary

B&B Manufacturing Co., Inc. is seeking a skilled CNC Machinist to perform precision setups on multi-axis milling and turning machines. You will install tooling, fixtures, and programs, validate first-article parts, and ensure parts meet strict quality standards.

Responsibilities include optimizing processes for automation, diagnosing machining issues, and mentoring less experienced machinists. A minimum of 5 years in aerospace/defense/medical machining and GD&T interpretation are required.

Qualifications

• 5+ years hands-on CNC precision machining in aerospace/defense/medical.
• Expertise in G-code, canned cycles, and in-process probing systems.
• Proven track record machining tight-tolerance parts with aluminum, steel, aerospace alloys.
• Understanding of metal behavior, chip formation, vibration, heat transfer.
• Understanding of tool geometry, fixture design, and tool life management.
• Ability to read GD&T and manufacturing drawings.
• Diagnose machining issues and implement corrective actions.
• Experience with MS Office tools (Excel, Outlook).

Responsibilities

• Set up, operate, and optimize CNC machine tools (multi-axis milling and turning).
• Perform CNC program proofing, validate first-article setups, and ensure reliable production.
• Evaluate and improve work holding, feeds/speeds for performance and repeatability.
• Collaborate with Programming and Manufacturing Engineers to optimize processes for automation.
• Apply continuous improvement principles to machining processes to improve efficiency and reduce lead times.

Skills

G-code

Canned cycles

In-process probing

Machining accuracy

Aluminum alloys

Steel alloys

Aerospace-grade alloys

GD&T interpretation

Manufacturing drawings

Tool life management

Fixture design

Root-cause analysis

MS Office

Education

High School diploma or equivalent

Tools

Excel

Outlook

Job description

Job Description

JOB SUMMARY

Responsible for performing precision setups and operations on multi-axis CNC milling and turning machines. In this role, you will prepare machines for production by installing tooling, fixtures, and programs, validating first-article parts, and ensuring parts meet strict quality and dimensional standards.

ESSENTIAL DUTIES AND RESPONSIBILITIES

The duties and responsibilities described are not a comprehensive list and additional tasks may be assigned. To perform this job successfully, an individual must be able to perform each essential duty satisfactorily.

Advanced Machining & Setup

• Set up, operate, and optimize CNC machine tools (multi-axis milling and turning).
• Perform CNC program proofing, validate first-article setups, and ensure reliable, efficient, and safe production.
• Evaluate and improve work holding, feeds/speeds, for performance and repeatability.

Automation & Continuous Improvement

• Collaborate with Programming and Manufacturing Engineers to optimize machining processes suitable for automation (robotic loading, in-process inspection & probing) to support lights-out manufacturing.
• Apply continuous improvement principles to machining processes to improve efficiency, reduce lead times, and eliminate non-value-added activities.

Quality & Problem Solving

• Diagnose machining issues, perform root-cause analysis, and implement sustainable corrective actions.
• Ensure adherence to tight tolerances using advanced inspection tools and techniques.
• Read and interpret GD&T, engineering drawings, and 3D part models to ensure precision manufacturing.

Training & Leadership

• Develop and maintain detailed setup documentation including setup sheets, tooling files, and manufacturing inspection plans.
• Mentor and train less experienced machinists in setup techniques and process control.
• Promote a culture of craftsmanship, accountability, and continuous improvement.

QUALIFICATIONS, EXPERIENCE AND EDUCATION REQUIREMENTS

• High School diploma or equivalent
• 5+ years hands‑on experience in CNC precision machining (aerospace, defense, or medical).
• Expertise in G-code, canned cycles, and in-process probing systems.
• Proven track record of machining tight‑tolerance parts using aluminum, steel, and aerospace‑grade alloys.
• Understanding of metal behavior & mechanics in a machining environment (chip formation, vibration, distortion, heat transfer, etc.)
• Understanding of cutting tool geometry, fixture design, and tool life management.
• Ability to interpret GD&T and manufacturing drawings.
• Proven ability to diagnose and resolve complex machining issues independently — from chatter and tool wear to dimensional instability and setup inefficiencies.
• Experience with standard MS Office tools (Excel, Outlook)

PHYSICAL DEMANDS – GENERAL ACTIVITIES

Sitting - Frequently

Standing - Regularly

Walking - Regularly

Climbing/Balancing - Occasionally

Reaching - with arms and hands - Regularly

Stooping/Kneeling/Crouching/Crawling - Occasionally

Hearing - Regularly

Feeling/Touching - Regularly

Near/Far Visual acuity - Regularly

This position requires use of information which is subject to the International Traffic in Arms Regulations (ITAR). All applicants must be U.S. persons within the meaning of ITAR. ITAR defines a U.S. person as a U.S. Citizen, U.S. Permanent Resident (i.e. 'Green Card Holder'), Political Asylee, or Refugee.

“B&B Manufacturing Co. is an Equal Opportunity/Affirmative Action employer and all qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran or disability status, or any other characteristic protected by law.”