CNC MACHINIST I

LISI•Garden Grove, CA

2d•Onsite

About The Position

The CNC Machinist I is responsible for operating CNC machines and performing routine machining tasks in support of production and quality requirements. This role focuses on consistent machine operation, basic tooling changes, and in-process inspection while following established programs and work instructions. The CNC Machinist I works independently on assigned machines but escalates issues beyond routine operation to higher-level machinists or supervision.

Requirements

Minimum 1 year of CNC machining experience
Hands-on experience operating CNC machines in a manufacturing environment
Experience using precision measuring equipment such as calipers, micrometers, and gauges
Experience reading and interpreting basic blueprints
Familiarity with basic shop floor systems and production documentation
Follows all safety rules, job safety analyses, and PPE requirements without exception
Produces parts that meet quality, customer, and regulatory requirements
Stops work and escalates concerns when safety or quality risks are identified
Takes ownership of assigned machines and tasks
Arrives on time, prepared, and ready to work
Completes documentation accurately and consistently
Communicates machine status clearly during pass downs and meetings
Works respectfully and cooperatively with teammates and leads
Responds professionally to feedback and direction
Follows documented processes, programs, and work instructions
Authorized to perform routine machine operation and basic tooling changes
Escalates setup, programming, tooling, or quality issues beyond routine operation to CNC Machinist II, CNC Machinist III, CNC Machinist Lead, or supervision
Minimum 1 year of CNC machining experience or successful completion of the internal CNC Machinist Trainee program
Experience operating CNC machines following established programs
Ability to adjust basic tooling and make routine tooling changes
Ability to use basic measuring equipment (calipers, micrometers, gauges)
Ability to read and interpret basic blueprints
Basic math skills (decimals and fractions)
Ability to communicate machine status and issues clearly using pass downs and face-to-face communication
Ability to stand and walk throughout the entire shift
Ability to lift, carry, and move up to 30 pounds
Frequent repetitive hand and wrist motions, including operating machine controls
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
Load and unload parts and monitor machine cycles
Change basic tooling as required
Use gauges and precision measuring devices to perform in-process inspections
Verify parts meet quality and dimensional requirements
Recognize improper machine functioning and report findings to CNC Machinist II, CNC Machinist III, CNC Machinist Lead, or Supervisor
Use pass down sheets and participate in face-to-face problem-solving meetings to communicate machine status, including: Dates and times tooling was last changed, Maintenance or equipment issues, Machine performance or repeatability concerns, Status of ongoing setups or jobs in progress
Demonstrate working knowledge of shop floor systems used for production tracking, quality, and communication
Maintain a clean, organized, and safe work area
Comply with all company safety, quality, and production policies
Assist supervisors, mechanical engineers, and planners with work organization to: Support continuous improvement initiatives, Reduce setup time, cycle time, and machine downtime
Perform other related duties as assigned to support operational needs