2nd Shift Tool Room Machinist - CNC Mastercam & Fixtures

ADDMAN Engineering LLC; Wright City (MO); On-site; USD 55,000 - 75,000; Full time

Job summary

ADDMAN Engineering LLC is seeking an experienced toolroom machinist to join our precision manufacturing team in Wright City, Missouri. The role focuses on CNC milling and turning, fixture development, and process optimization to meet tight tolerances.

You will interpret complex engineering drawings and GD&T, program with Mastercam, and troubleshoot issues across engineering, quality, and production. Independent work with minimal supervision is essential, with collaboration across departments.

Qualifications

• Minimum toolroom machining experience required.
• Experience programming CNC equipment using Mastercam required.
• Experience designing and manufacturing fixtures, workholding, jigs, and tooling required.
• Strong CNC machining, setup, programming, and troubleshooting experience.
• Experience operating manual machining equipment.
• Strong knowledge of machining processes, cutting tools, feeds and speeds, tooling selection, and workholding methods.
• Ability to read and interpret engineering drawings, blueprints, GD&T, and CAD models.
• Experience with precision measurement equipment and tight-tolerance machining.
• Aerospace, defense, or other precision manufacturing experience preferred.
• Eligible to work in the United States at an ITAR facility without company sponsorship.

Responsibilities

• Maintains a safety-first approach and follows PPE, machine safety, and lockout/tagout procedures.
• Reads and interprets blueprints, engineering drawings, CAD models, GD&T, specifications, and work instructions.
• Uses Mastercam to create, modify, troubleshoot, and optimize CNC programs for tooling, fixtures, prototypes, and production components.
• Designs, develops, machines, modifies, and repairs fixtures, jigs, workholding, tooling, and other manufacturing aids.
• Sets up and operates CNC mills, lathes, 3-axis and 5-axis machines, and applicable manual toolroom equipment.
• Determines machining methods, tooling, workholding, speeds, feeds, cutting parameters, and sequence of operations.
• Performs machine prove-outs and trial runs to verify programs, setups, fixture functionality, and dimensional accuracy.
• Troubleshoots machining, programming, tooling, fixture, and workholding issues and makes necessary adjustments.
• Works with Engineering, Quality, Production, and Programming to resolve manufacturing challenges and improve machining processes.
• Identifies opportunities to reduce setup and cycle time, improve tooling and fixture design, and increase efficiency.
• Uses precision measuring equipment to verify conformance to specifications.
• Produces precision components and tooling while maintaining tolerances and quality standards.
• Adheres to AS9100, ISO 9000, and Quality Management System requirements.
• Provides technical guidance or training to other machinists.

Skills

CNC machining

Mastercam programming

Reading blueprints & GD&T

Problem solving

Tools

Mastercam

CAD models interpretation

Job description

ADDMAN Engineering LLC is seeking an experienced toolroom machinist to join our precision manufacturing team in Wright City, Missouri. The role focuses on CNC milling and turning, fixture development, and process optimization to meet tight tolerances.

You will interpret complex engineering drawings and GD&T, program with Mastercam, and troubleshoot issues across engineering, quality, and production. Independent work with minimal supervision is essential, with collaboration across departments.