Job Title:
CNC Programmer / Lathe Machinist Job Description This role focuses on programming and operating CNC lathes, with a strong emphasis on Mastercam programming and editing. You work with tight tolerances and complex 5-axis machining on aluminum and steel components in a busy manufacturing environment. You contribute to precision production by translating blueprints into accurate CNC programs and ensuring parts meet exact specifications. Responsibilities Program, set up, and operate CNC lathes to produce precision components according to engineering drawings and specifications. Create, modify, and optimize CNC programs using Mastercam, with an emphasis on editing and preferred experience in full programming. Interpret and work from blueprints to determine machining requirements, dimensions, and tolerances. Machine parts to tight tolerances of +/- .005, ensuring consistent quality and adherence to specifications. Perform 5-axis machining operations on aluminum and steel parts, adjusting programs and setups as needed. Select appropriate tooling, speeds, and feeds for various materials, including aluminum and steel. Inspect finished parts using measuring tools to verify dimensions and quality, and make necessary program or setup adjustments. Collaborate with team members in the shop to resolve machining challenges and improve processes. Maintain equipment in good working order by performing routine checks and reporting any issues. Follow all safety procedures and maintain a clean, organized work area within the manufacturing shop. Essential Skills Hands-on experience programming and operating CNC lathes. Proficiency with Mastercam, including strong editing skills and preferred experience in full programming. Ability to interpret and work from blueprints and technical drawings. Demonstrated ability to machine parts to tight tolerances of approximately +/- .005. Experience with 5-axis machining operations. Practical experience machining aluminum and steel components. Familiarity with Fanuc controls and related CNC programming. Strong attention to detail and commitment to producing high-quality, precise work. Ability to work effectively in a manufacturing and industrial shop environment. Additional Skills & Qualifications Experience with conventional mills and lathes is a plus. Comfort working with a variety of machining equipment and setups. Ability to troubleshoot machining and programming issues and suggest improvements. Strong problem-solving skills and willingness to learn and adapt to new processes. Why Work Here? You join a long-term, stable organization with a family-owned culture that values loyalty and craftsmanship. The shop offers strong employee tenure, reflecting a supportive environment where people stay and grow over time. You work in a growing industry with solid future prospects, and benefit from a convenient, well-established location in Monrovia. Work Environment You work in an indoor manufacturing and industrial setting within a large machine shop of approximately 20 or more employees. The environment is production-focused, with CNC lathes, mills, and related equipment in regular use. You spend most of your time on the shop floor, collaborating with other machinists and programmers, and operating machinery in a structured, safety-conscious environment. Job Type & Location This is a Contract position based out of Monrovia, CA. Pay and Benefits The pay range for this position is $35.00 - $50.00/hr. 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 Monrovia,CA.
Application Deadline This position is anticipated to close on Jul 5, 2026. 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.