CNC MACHINIST II

LISI•Garden Grove, CA

15h•$24 - $30

About The Position

The CNC Machinist II is an intermediate-level machinist who independently operates CNC machines, performs basic setups, changes and adjusts tooling without supervision, troubleshoots routine machine and process issues, and supports training new hires. The role requires technical judgment, ownership of assigned equipment, and proactive communication to support safe, efficient, high-quality production. The machinist works with established programs, work instructions, engineering requirements, and safety procedures. They perform routine setups and tooling and offset adjustments within their authority, and escalate complex setup, programming, tooling, or quality issues to a CNC Machinist III, CNC Machinist Lead, or Supervisor. They also communicate machine status through shift handoffs and problem-solving meetings, contribute to continuous improvement and waste reduction, and maintain an organized work area under 5S standards. The position is based in a manufacturing machine shop, with exposure to machine noise, metal chips, coolants, oils, fumes, mists, and temperature variations. Required PPE includes safety glasses, steel-toe footwear, and hearing protection. The role includes physical activity such as standing and walking throughout the shift, moving parts, and repetitive hand and wrist motions.

Requirements

3–4 years of CNC machining experience in a manufacturing environment, or an 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.
Experience using precision measuring equipment.
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 the entire shift.
Ability to lift, carry, and move up to 30 pounds.
Ability to perform frequent repetitive hand and wrist motions and to open and close machine doors repeatedly.
Ability to load parts into chucks or fixtures and to bend, reach, push, pull, and grasp as required.
Visual acuity sufficient to read measuring instruments, machine displays, and blueprints.
Consistent attendance and reliability; ability to work collaboratively and support teamwork and continuous improvement.

Nice To Haves

Experience supporting or training less-experienced machinists.
Proactive identification of opportunities to improve efficiency, quality, and tooling life.
Familiarity with the site's HSE policy, objectives, risks, and environmental impacts; ability to propose improvements to working conditions and environmental impact.

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 appropriate material, tool holders, and tooling for assigned jobs according to 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, take corrective action within scope, and escalate complex issues to a CNC Machinist III, CNC Machinist Lead, or Supervisor.
Use pass down sheets when face-to-face shift changeover is not feasible and participate in face-to-face problem-solving meetings to communicate tooling changes, tool life concerns, maintenance or equipment issues, machine performance trends, and job or setup status.
Use shop floor systems for production tracking, quality documentation, and communication.
Assist supervisors, mechanical engineers, and planners with work organization and continuous improvement efforts to reduce setup time, cycle time, and machine downtime.
Implement and suggest waste elimination initiatives, including recycling opportunities and reducing 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 company safety, quality, and production policies.
Perform other related duties as assigned to support operational needs.
Follow safety rules, job safety analyses, and PPE requirements; correct or report unsafe or environmentally risky conditions and support preventive actions.
Complete inspections and documentation accurately, stop work and escalate safety or quality concerns, and communicate machine status during pass downs and meetings.