Temporary Cnc Machinist Jobs in Riverside, CA (NOW HIRING)

Job Title: CNC Machinist – Horizontal 5–6 Axis Lathes

Pay: $25 - $50

Job Description

This role focuses on setting up and operating complex CNC horizontal lathes with 5–6 axis capabilities to produce high-precision components. You interpret detailed blueprints, select appropriate tooling, edit and optimize G-code programs, and perform precise measurements to ensure parts meet tight tolerances. You work from job instructions, optimize feeds and speeds, and ensure that finished parts are deburred, inspected, and ready for downstream operations in a clean, modern machine shop environment.

Responsibilities

• Set up and operate CNC horizontal lathes with 5–6 axis capabilities to produce precision components according to engineering specifications.
• Interpret and follow detailed blueprints, customer specifications, and job instructions to plan machining operations.
• Select and install appropriate tooling, workholding, and fixtures, and verify correct machine set up before production runs.
• Edit, adjust, and optimize G-code programs at the machine to improve quality, efficiency, and cycle times while maintaining part integrity.
• Adjust feeds, speeds, and offsets during production to maintain tight tolerances and consistent part quality.
• Perform in-process and final inspections using calipers, micrometers, and other precision measuring instruments to verify dimensions and tolerances.
• Apply GD&T principles when reading and interpreting prints to ensure all geometric requirements are met.
• Deburr and finish machined components to meet quality standards and customer requirements.
• Use machine operation software and CNC control interfaces to load programs, set work coordinates, and monitor machine performance.
• Troubleshoot machining issues, identify root causes, and implement corrective actions to minimize scrap and rework.
• Maintain accurate documentation and basic computer entries related to jobs, setups, and inspection results as required.
• Follow all safety requirements and standard operating procedures to ensure a safe working environment.
• Keep the work area clean, organized, and free of debris, and perform basic preventive maintenance on machines as needed.
• Collaborate with teammates, engineering, and leadership to resolve production issues and support continuous improvement initiatives.
• Meet production schedules by managing time effectively, communicating issues promptly, and supporting shift handoffs when necessary.

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

The pay range for this position is $49920.00 - $104000.00/yr.

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)

This is a fully onsite position in Walnut,CA.

This position is anticipated to close on Aug 11, 2026.

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.

We know that finding work is hard, and finding meaningful work is harder. Aerotek connects 180,000+ light industrial and skilled trades workers with 14,000+ employers each year, helping our workers navigate an evolving labor market and find jobs that meet their goals, skills, and interests. Since 1983, we have provided a variety of career opportunities across North American industry – from short-term assignments at Fortune 500 companies where you can build your skills, to long-term opportunities where you can play a vital role in solving companies’ construction, manufacturing, and maintenance challenges. Our 1,500+ experienced recruiters across 250+ offices work relentlessly to put our workforce in a position to thrive. Let us rise to meet your challenges and put our people-are-everything spirit to the test as your career continues to grow.