Lead CNC Machinist (2nd Shift)
Job Description
Location: Libertyville, IL
Hire Type: Contract to Direct Hire
Benefits: Competitive pay, full benefits package
- Program CNC lathe and mill machines using CAM software (MasterCAM) from 2D/3D models
- Ensure programs align with machine/tooling capabilities, efficiency, and repeatability
- Continuously improve programs for machining speed, accuracy, and consistency
- Collaborate with engineering and production teams on design, tooling, and fixturing improvements
- Operate CNC machines and mentor machinists on setup and best practices
- Train team members in CNC machining equipment usage
- Maintain optimal machine utilization and production efficiency
- Operate manual horizontal and vertical lathes as needed
- Train machinists in manual techniques to supplement CNC capabilities
- Ensure manual machining equipment is used and maintained properly
- Enforce high machining standards with regular inspections and feedback
- Identify and implement process improvements and cost-saving opportunities
- Perform or supervise maintenance, troubleshooting, and repairs to minimize downtime
- Minimum 5 years of CNC operations experience (lathe & mill)
- Minimum 3 years of CNC programming experience using MasterCAM
- Strong experience machining various steels: A36, C1018, C1045, 4140, 304 & 316 stainless
- Skilled in horizontal and vertical axis lathe operation
- Solid understanding of process optimization, quality control, and safety standards
- Hands-on experience troubleshooting and maintaining CNC and manual machines
- Forklift and overhead crane operation required
- Experience with product sizes ranging from 4" dia. x 2" long up to 45" dia. x 12" long, 6–2000 lbs
Sterling Engineering is an equal opportunity employer. All qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.
Meet Your Recruiter
Senior Technical Recruiter
Naeomi is a Senior Technical Recruiter at Sterling Engineering with more than two years of experience supporting candidates and clients. She focuses on Sterling’s Commercial Division, recruiting for roles across plastics, machining, aerospace, and other specialized technical environments.
Naeomi enjoys recruiting because it gives her the opportunity to make a lasting, positive impact in someone’s life. She is passionate about helping candidates find new opportunities that align with their skills, goals, and long-term career growth.
For Naeomi, recruiting is also about building trusted relationships and being a helpful resource beyond one placement. Whether supporting an individual candidate or someone in their network who may be looking for a new role, she takes pride in helping people move forward with confidence.