Mill Operator

Job Title: CNC Mill Operator

Job Description

The CNC Mill Operator works with computer-controlled 3-axis CNC mills with 4th axis capabilities and grinder attachments to ensure machines are correctly set up, operating efficiently, and producing high-quality aerospace components. This role performs recurring assignments independently and proficiently, following established procedures and practices with minimal supervision while maintaining strict quality and safety standards.

Responsibilities

• Set up, adjust, and operate 3- and 4-axis CNC mills and grinders used in aerospace manufacturing to produce precision components.
• Configure and use measuring tools such as calipers and micrometers to verify dimensions and ensure products meet specifications.
• Make manual adjustments at the machine interface and controls to optimize performance, maintain proper operation, and validate product compliance.
• Interpret and work from blueprints and technical drawings to determine machining requirements and set up parameters.
• Perform machine setup activities, including tooling selection, fixture installation, and part alignment for milling and grinding operations.
• Use inspection tools to conduct in-process and final inspections, documenting results in accordance with quality standards.
• Apply knowledge of GD&T to understand geometric tolerances and ensure parts conform to engineering requirements when applicable.
• Monitor production processes and make necessary adjustments to maintain quality, efficiency, and throughput
• Perform routine checks and basic maintenance on machines and equipment to ensure safe and reliable operation.
• Follow established procedures and work instructions while maintaining a clean, organized, and safe work area.
• Collaborate with team members and supervisors to resolve machining issues and improve processes.
• Comply with all safety, quality, and manufacturing policies, including proper use of personal protective equipment (PPE).

Essential Skills

• Minimum of 2 years of experience operating 3-axis CNC mills.
• Hands-on experience with micrometers and other inspection tools to perform accurate dimensional checks.
• Ability to set up CNC mills and related equipment, including tooling, fixtures, and workholding.
• Proficiency in blueprint reading to interpret engineering drawings and machining requirements.
• Working knowledge of machining practices, including milling and grinding operations.
• Ability to make manual adjustments at machine controls to optimize performance and maintain product quality.
• Familiarity with basic quality control practices in a manufacturing environment.
• Capability to work independently under minimal supervision while following established procedures.
• Understanding of general safety practices in a manufacturing setting, including proper use of PPE.

Additional Skills & Qualifications

• Knowledge of machines and tools, including their design, use, repair, and maintenance.
• Understanding of raw materials, production processes, quality control, costs, and techniques for effective manufacturing and distribution of goods.
• Grinding experience is preferred and considered a strong asset.
• Knowledge of Geometric Dimensioning and Tolerancing (GD&T) is preferred.
• Experience with lathe operations is beneficial.

Why Work Here?

Employees benefit from a performance-based bonus structure, including a 2% annual bonus that can increase depending on site performance, offering a direct connection between individual contributions and rewards. New hires are eligible for a sign-on bonus, and additional relocation support is available for those moving from outside the Bay Area, demonstrating a commitment to attracting and supporting skilled talent. The organization promotes a culture of continuous improvement, safety, and quality, providing opportunities to grow technical expertise in a stable, well-structured manufacturing environment.

Work Environment

The role is based in a typical manufacturing environment focused on aerospace production. Working conditions may include exposure to loud noises, cold temperatures, confined spaces, dust, or fumes. Employees use appropriate safety equipment such as safety glasses, masks, hearing protection, heel and wrist straps, gowns, and other required personal protective equipment. The environment emphasizes adherence to safety protocols, cleanliness, and organization, with an expectation of flexibility and willingness to work overtime when necessary to meet production demands.

This is a Permanent position based out of Auburn, CA.

The pay range for this position is $54080.00 - $83200.00/yr.

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.

Benefits: Health care, dental, vision, life and disability insurance starting the first day of the month Time Off: 15 days of paid time off that start accruing your first day at Crane and 12 paid holidays per year. 401k Retirement Plan: 401k plan with company match Education Reimbursement: eligible after 6 months of employment

This is a Permanent position based out of Auburn, CA.

This position is anticipated to close on Nov 5, 2026.

This is a fully onsite position in Auburn,CA.

About Aerotek

Aerotek® 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.