Senior CNC Machinist – Mastercam, GD&T, First Article

BWXT; Oak Ridge (TN); On-site; USD 35,817 - 53,726; Full time

Benefits offered by this job

Health, dental, and retirement plans

Paid time off

Professional development opportunities

Job summary

BWXT is seeking an experienced Machinist in Oak Ridge, TN to set up, operate, and maintain CNC mills, lathes, and related equipment for precision components. You will read blueprints, apply GD&T, and use Mastercam for new part setups and first article runs in a highly technical environment.

The role requires 5+ years of CNC experience, knowledge of Fanuc or Siemens controls, and a U.S. citizenship with ability to obtain DOE/DOD clearance.

Qualifications

• High school diploma or equivalent required; technical certificate a plus.
• Minimum of 5 years of CNC machining experience.
• Strong knowledge of CNC machinery, tooling, and precision measurement instruments.
• Experience with Fanuc or Siemens CNC controls.
• CAM software experience (Mastercam preferred).
• Strong attention to detail and quality.
• Excellent teamwork and communication skills.
• Must be a U.S. citizen.
• Must be able to obtain and maintain a DOE or DOD security clearance; active clearance preferred.

Responsibilities

• Set up and operate CNC mills, lathes, drills, grinders, and related equipment.
• Install workholding equipment, tooling, and input tool offsets and compensations.
• Read and interpret detailed blueprints and 3D models.
• Apply GD&T for precision manufacturing and inspection.
• Utilize G-code at the controller and CAM (Mastercam) for new part setups and first article runs.
• Select appropriate tooling based on materials and tolerances.
• Document setup sheets including tooling, offsets, feeds/speeds, and fixture positions.
• Perform first article machining and adjust offsets to meet tolerance.
• Conduct in-process inspections and maintain dimensional accuracy.
• Perform routine machine maintenance and troubleshoot issues.
• Maintain a safe, clean, and organized work area.
• Support process optimization and continuous improvement with team members.

Skills

CNC machining

GD&T

Mastercam CAM

Fanuc/Siemens controls

First article inspection

Quality focus

Teamwork & communication

U.S. citizen

DOE/DOD clearance ability

Education

High school diploma or equivalent

Technical certificate in machining

Tools

Mastercam

Job description

BWXT is seeking an experienced Machinist in Oak Ridge, TN to set up, operate, and maintain CNC mills, lathes, and related equipment for precision components. You will read blueprints, apply GD&T, and use Mastercam for new part setups and first article runs in a highly technical environment.

The role requires 5+ years of CNC experience, knowledge of Fanuc or Siemens controls, and a U.S. citizenship with ability to obtain DOE/DOD clearance.