CNC Mill Machinist

Job Title: CNC Mill Machinist
Job Description
The CNC Mill Machinist sets up and operates multi-axis CNC milling machines to produce precision parts in accordance with work orders, blueprints, and detailed specifications. This role requires careful interpretation of CNC programs and setup documentation, accurate tool and fixture selection, and diligent in-process inspection to ensure all parts meet quality standards. The machinist maintains a clean, organized work area and consistently follows established safety procedures while supporting a highly automated production environment.
Responsibilities

• Set up and machine parts using work orders, blueprints, materials, and specifications to produce high-quality, conforming components.
• Interpret job instructions including CNC programs, setup sheets, tool lists, job routings, part drawings, and in-process quality instructions.
• Identify, select, and locate appropriate tool holders, cutting tools, and fixtures, and load them correctly into the CNC machine.
• Load CNC programs into machine controls, set zero and reference points, and enter tool lengths and offsets accurately.
• Ensure each workpiece is properly lubricated and cooled during machining to maintain tool life and part quality.
• Run CNC programs, monitor machine operation, take precise measurements, and make necessary adjustments to achieve finished parts within tolerance.
• Inspect the first-run piece and perform ongoing checks on subsequent parts to verify conformance to specifications and quality standards.
• Perform multi-position and contour machining of parts, assemblies, and tooling made from various materials including stainless steel and aluminum.
• Set up and run multi-axis machines such as DMU 50, DMU 65, and HAAS VF series, with a primary focus on 4-axis horizontal milling.
• Support automation by loading and unloading parts, checking completed components, and following the established production schedule.
• Operate machines with FANUC, Siemens, and HAAS controls, adjusting parameters as needed to optimize performance.
• Maintain a clean and organized work area in accordance with 5S standards.
• Follow all company safety rules and guidelines to ensure a safe working environment.

Essential Skills

• Hands-on experience setting up and operating CNC milling machines in a production or machine shop environment.
• Ability to interpret and work from CNC programs, setup sheets, tool lists, job routings, part drawings, and in-process quality instructions.
• Proficiency in multi-axis machining, including 5-axis and 4-axis horizontal milling operations.
• Experience machining a variety of materials, including stainless steel and aluminum.
• Skill in setting zero and reference points and entering tool lengths and offsets into CNC machine controls.
• Strong measurement and inspection skills to verify part dimensions and ensure conformance to specifications.
• Experience operating DMU 50 and DMU 65 machines.
• Experience operating HAAS VF series mills, including vertical mills.
• Ability to work with FANUC controls.
• Ability to work with Siemens controls.
• Ability to work with HAAS mill and HAAS vertical controls.
• Commitment to following safety procedures and maintaining a clean, organized work area in line with 5S standards.
• Ability to work effectively in a highly automated production environment, including loading, unloading, and checking parts according to schedule.

Additional Skills & Qualifications

• Standard machine shop environment.
• Experience performing multi-position and contour machining of complex parts and tooling.
• Familiarity with automation-focused workflows, including adherence to production schedules.
• Prior experience at precision machining organizations similar to Absolute Technologies, Turbo Tech Machining, or MD Engineering is considered beneficial.

Why Work Here?
You join a precision-focused manufacturing environment that values technical expertise, automation, and continuous improvement. The role offers a contract-to-hire path with a clearly defined hour threshold and a shift differential that rewards your contribution on second shift. You work in a setting that emphasizes safety, organization, and quality, providing the opportunity to grow your skills on advanced multi-axis equipment while contributing to a stable, well-structured production operation.
Work Environment
This position is based in a standard machine shop environment with advanced multi-axis CNC equipment, including DMU 50, DMU 65, and HAAS VF mills, with a primary focus on 4-axis horizontal milling. You work on 2nd shift, Monday through Friday, from 3:00 p.m. to 1:20 a.m., supporting an automation-driven production schedule that involves regular loading and unloading of parts and in-process inspection. The shop follows 5S principles to maintain cleanliness and organization, and established safety rules guide daily operations. Typical machine shop attire and appropriate personal protective equipment are expected to ensure safety and comfort while working around machinery and metalworking processes.
Job Type & Location
This is a Contract to Hire position based out of Rancho Cucamonga, CA.
Pay and Benefits
The pay range for this position is $28.00 - $38.00/hr.
Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in Rancho Cucamonga,CA.
Application Deadline
This position is anticipated to close on Oct 9, 2026.

About Aerotek

Aerotek\u00AE Inc. provides staffing and services solutions in manufacturing, logistics, construction, aviation, facilities and maintenance. We provide the expertise, solutions and people required to rise to the challenges of North American industry. Headquartered in Hanover, Md., Aerotek operates a unified network of over 200 offices across North America, supporting more than 18,000 clients each year. Aerotek is an Allegis Group company, the global leader in workforce and business solutions. To learn more, visit: Aerotek.com | 1-888-AEROTEK.


Aerotek offers weekly pay, employee benefits including medical, dental & vision, life insurance, health advocacy and employee assistance programs, a 401(k) plan, and employee discounts.


The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance:
Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector:
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):
We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.