CNC Lead Machinist — Mastercam Pro & Mentor

J & J Staffing Resources; Horsham (PA); On-site; USD 80,231,000 - 114,616,000; Full time

Benefits offered by this job

Weekly pay

Direct Deposit

Medical, Dental and Vision Benefits

Paid Time Off

Referral Bonus

Job summary

J & J Staffing Resources is seeking an experienced CNC Lead Machinist to provide hands-on leadership in our machining department. This role coordinates daily activities, supports production schedules, and ensures work is completed safely and to quality standards.

The ideal candidate has Mastercam and G-code editing experience, can train and mentor machinists, and leads by example while maintaining strict process controls in a fast-paced environment.

Qualifications

• High School Diploma or GED; technical or machining certification preferred.
• 5-10 years of CNC and manual machining experience in a precision environment.
• 5 years of experience leading or mentoring machinists.
• Proficiency with Mastercam and G-code editing/programming.
• Strong CNC setup, prove-out, and troubleshooting skills.
• Experience operating VTLs, HMCs, VMCs, and manual mills/lathes.
• Ability to read blueprints and GD&T, and interpret complex drawings.
• Experience in a QMS environment; ISO 9001/AS9100 preferred.
• Strong communication, leadership, and problem-solving skills.
• Office/ERP/shop-floor software experience preferred.

Responsibilities

• Coordinate daily machining activities and workflow with the Production Manager.
• Assign and prioritize jobs based on production schedules and deadlines.
• Provide guidance, training, and mentorship to machinists.
• Set up, prove out, and edit CNC programs using Mastercam and G-code.
• Select tooling, workholding, speeds, feeds, and machining processes.
• Operate and troubleshoot CNC VTLs, HMCs, VMCs, manual mills, lathes, and boring bars.
• Read and interpret complex blueprints, engineering drawings, and GD&T.
• Perform first-piece and in-process inspections using micrometers, calipers, bore gauges, optical comparators, and other precision measuring equipment.
• Identify and report quality issues and process deviations.
• Follow ISO 9001, AS9100, MIL, IPC and company QMS requirements.
• Maintain a safe, clean, and organized work area and support 5S practices.
• Assist with preventative maintenance and equipment troubleshooting.
• Perform other duties as assigned.

Skills

CNC setup & programming

Leadership / mentoring

GD&T reading

Blueprint interpretation

Education

High School Diploma or GED

Machining certification preferred

Tools

Mastercam

G-code editing

ERP / shop-floor software

Job description

J & J Staffing Resources is seeking an experienced CNC Lead Machinist to provide hands-on leadership in our machining department. This role coordinates daily activities, supports production schedules, and ensures work is completed safely and to quality standards.

The ideal candidate has Mastercam and G-code editing experience, can train and mentor machinists, and leads by example while maintaining strict process controls in a fast-paced environment.