Company Overview
LISI Aerospace is a global leader in designing and manufacturing high-quality fasteners and structural components for the aerospace industry. With a rich history rooted in innovation and industrial excellence, we are committed to shaping the future of safer, more environmentally friendly aircraft through advanced manufacturing solutions.

Job Title: Senior CNC Lathe Machinist – Evening Shift

Shift Schedule: Monday – Friday | 3:00 PM – 11:30 PM

Position Summary

The CNC Machinist III is an advanced-level machinist responsible for performing complex CNC setups, resolving advanced machining and programming issues, leading technical problem solving, and supporting quality and continuous improvement initiatives. This role serves as a technical expert and mentor on the shop floor and plays a key role in ensuring safe, efficient, and high-quality production.

The CNC Machinist III works independently with minimal oversight and provides guidance to lower-level machinists while collaborating with supervisors, engineers, planners, and cross-functional teams.

Essential Duties & Responsibilities

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

• Perform complex CNC machine setups, including tooling strategy, fixture setup, offsets, and program verification
• Set up, adjust, and optimize live tooling and multi-axis operation
• Select proper materials, tool holders, cutting tools, and inserts based on job requirements, prints, and engineering specifications
• Prepare complete tool kits for new or complex work orders to ensure efficient setups and minimal downtime
• Recognize improper machine functioning and make required adjustments to maintain safe and stable operation
• Initiate and report repair needs for CNC machines as required and coordinate with maintenance or supervision
• Perform advanced troubleshooting and routine maintenance within scope to minimize downtime and prevent recurrence
• Identify, perform, and troubleshoot complex machining operations and programming issues to improve product quality, cycle time, and tooling life
• Troubleshoot complex machine set ups including tooling, machining processes, and program-related issues across multiple machines
• Complete and review First Article Inspection Reports (FAIRs) and support investigation of nonconforming product
• Analyze machining processes and implement improvements to reduce scrap, rework, setup time, and machine downtime
• Lead daily problem-solving meetings (PSM1) and technical discussions with machinists to address safety, quality, and production issues
• Serve as a technical resource and mentor for CNC Trainees, CNC Machinist I and II employees
• Use pass down logbooks and participate in face-to-face turnover meetings to communicate machine status, including:

o Dates and times tools were last changed

o Maintenance issues that occurred during the shift

o Machine performance and repeatability during the shift

o Status of ongoing setups, including:

o Collet changes

o Tooling changes and alignment at each position

o Program loaded and verified

o First article pieces completed and verified

• Demonstrate advanced knowledge of shop floor systems used for production tracking, quality documentation, and communication
• Collaborate with supervisors, mechanical engineers, quality, and planners to support:

o Continuous improvement initiatives

o Process optimization and standardization

o Reduction of setup time, cycle time, and downtime

• Represent the department in cross-functional teams and/or in-house committees as assigned
• Identify and implement waste elimination initiatives, including reduction of material waste, tooling waste, and inefficient processes
• Maintain a clean, organized, and safe work area and reinforce 5S standards
• Comply with all company safety, quality, and production policies
• Perform other related duties as assigned to support operational needs

Ways of Working, Experience, and Behaviors

Ways of Working

To perform the job successfully, an individual should demonstrate the following competencies:

• Takes ownership of complex jobs from setup through production
• Approaches problems analytically and implements long-term corrective actions
• Balances throughput, quality, tooling life, and process stability
• Anticipates equipment and process risks and acts proactively
• Communicates clearly and thoroughly during shift turnovers and meetings
• Leads by example through technical expertise and professionalism

Experience

• 5+ years of CNC machining experience in a manufacturing environment
• Proven experience performing complex CNC setups independently
• Strong experience with live tooling and multi-axis CNC machines
• Experience troubleshooting advanced machining, tooling, programming, and equipment issues
• Experience completing and reviewing First Article Inspection Reports (FAIRs)
• Advanced ability to read and interpret blueprints and GD&T

Expected Behaviors

• Demonstrates leadership in safety practices and compliance
• Acts as a quality advocate and ensures work meets customer and regulatory requirements
• Stops production and escalates risks when necessary
• Takes responsibility for technical decisions and process outcomes
• Completes documentation accurately and thoroughly
• Demonstrates consistent attendance and dependability
• Mentors and supports lower-level machinists
• Leads constructive, fact-based problem-solving discussions
• Represents the department professionally in cross-functional settings

Decision-Making Authority

• Authorized to make technical decisions related to setups, tooling strategy, and machining processes
• Leads technical problem solving within assigned scope
• Initiates maintenance requests and escalates systemic, safety, or quality issues to CNC Machinist Lead or Supervisor

Minimum Qualifications

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

• 5+ years of CNC machining experience or equivalent combination of training and experience
• Ability to perform complex CNC machine setups independently
• Strong troubleshooting capability for machining, tooling, programming, and equipment issues
• Experience completing FAIRs
• Advanced blueprint and GD&T interpretation skills
• Strong communication and mentoring skills

Physical Demands, Work Environment, Health & Safety

Physical Demands

• Ability to stand and walk for entire shift
• Ability to lift, carry, and move up to 25 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

Work Environment

• Manufacturing machine shop environment
• Exposure to machine noise, metal chips, coolants, oils, fumes, and mists
• Exposure to temperature variations
• Required use of PPE, including safety glasses, steel-toe footwear, and hearing protection

Safety and Environmental

Participate in the development and promotion of the HSE culture

Be exemplary in terms of health, safety and the environment, in particular by :

- Respecting and ensuring respect for the instructions and rules established in the field of health, safety and the environment (in particular the LISI golden rules)

- Immediately correcting, whenever possible, or reporting to his or her superiors and/or the HSE department, any malfunction or risky situation in the fields of health, safety and environmental protection

- Implementing preventive actions to reduce the environmental footprint and control health and safety risks

Participate, upon request, in analyses (of risks, incidents) and HSE working groups related to his/her professional scope

Be familiar with the main health and safety risks and the main environmental impacts relating to the scope of his/her work

Be familiar with the site's HSE policy and objectives

To be able to make proposals for improving working conditions and limiting environmental impact

Ensure compliance with procedures, instructions, HSE guidelines and golden rules

Ensure that procedures and instructions are always adapted and updated

Ensure the acquisition and maintenance of the skills of its employees in relation to the tasks performed by its teams

Ensure that the equipment under his/her responsibility is in good condition and operates without risk. If this is not the case, he/she will ensure that protective measures are taken and/or that the equipment is consigned

Identify and deal with HSE risk situations during the appropriate PSM

Manage emergency situations with the help of the OHS and first response team members

Relay and animate HSE communication within his/her teams

Pay: $30.11 - $37.09 per hour

Benefits:

• 401(k)
• 401(k) 6% Match
• 401(k) matching
• Dental insurance
• Employee assistance program
• Flexible spending account
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Professional development assistance
• Referral program
• Tuition reimbursement
• Vision insurance

Experience:

• CNC Lathe : 5 years (Required)

Language:

• English (Required)

Shift availability:

• Night Shift (Required)

Ability to Commute:

• Garden Grove, CA 92841 (Required)

Work Location: In person