CNC MACHINIST II

LISI•Garden Grove, CA

About The Position

The CNC Machinist II is an intermediate-level machinist responsible for independently operating CNC machines, performing basic setups, adjusting and changing all tooling without supervision, troubleshooting routine machine and process issues, and supporting the training of new hires. This role requires strong technical judgment, ownership of assigned equipment, and proactive communication to ensure safe, efficient, and high-quality production.

Requirements

3–4 years of CNC machining experience in a manufacturing environment
Experience performing basic CNC setups independently
Proven ability to select tooling and change all tooling without supervision
Experience troubleshooting routine machining and tooling issues
Experience using precision measuring equipment
Ability to read and interpret blueprints and basic GD&T
Experience supporting or training less-experienced machinists
3–4 years of CNC machining experience or equivalent combination of training and experience
Ability to perform basic CNC machine setups independently
Ability to select tooling and change all tooling without supervision
Ability to troubleshoot routine machining and process issues
Ability to read and interpret blueprints and basic GD&T
Strong communication skills for pass downs and problem-solving
Ability to stand and walk for entire shift
Ability to lift, carry, and move up to 30 pounds
Frequent repetitive hand and wrist motions
Ability to open and close machine doors repeatedly
Ability to load parts into chucks or fixtures
Ability to bend, reach, push, pull, and grasp as required
Visual acuity sufficient to read measuring instruments, machine displays, and blueprints

Responsibilities

Operate CNC machines in accordance with established programs, work instructions, and safety procedures
Perform basic CNC machine setups, including tooling changes, offsets, and fixture adjustments
Select proper material, tool holders, and tooling for assigned jobs in accordance with work instructions and engineering requirements
Change all tooling independently and without supervision
Adjust tooling and offsets to maintain dimensional accuracy and part quality
Troubleshoot routine machine, tooling, and dimensional issues on assigned equipment
Recognize improper machine functioning and take appropriate corrective action within scope; escalate complex issues to CNC Machinist III, CNC Machinist Lead, or Supervisor
Use pass down sheets when face to face shift changeover is not feasible. Participate in face-to-face problem-solving meetings to communicate machine status, including: o Tooling changes and tool life concerns o Maintenance or equipment issues o Machine performance or repeatability trends o Status of ongoing setups or jobs in progress
Demonstrate working knowledge of shop floor systems used for production tracking, quality documentation, and communication
Assist supervisors, mechanical engineers, and planners with work organization to: o Support continuous improvement initiatives o Reduce setup time, cycle time, and machine downtime
Implement and suggest waste elimination initiatives within the department, including recycling opportunities and reduction of production-related waste
Train and support new hires on machine operation, tooling changes, inspection methods, and shop procedures
Maintain a clean, organized, and safe work area in accordance with 5S standards
Comply with all company safety, quality, and production policies
Perform other related duties as assigned to support operational needs