202 Best simple part time Jobs in Ontario, California (April 2026)

1st Shift CNC Operator

22 hours ago

Rancho Cucamonga

• Job Identification 116858, • Job Category Operations, • Posting Date 04/01/2026, 10:55 PM, • Locations 11711 Arrow Route, Rancho Cucamonga, CA, 91730, US (On-site), • Job Schedule Full time Ability to set up and operates CNC machinery, to produce metallic parts to customer specifications by performing the following duties. Essential Duties and Responsibilities: This is not intended as a comprehensive list; it is intended to provide a representative summary of the major duties and responsibilities. Incumbent(s) may not be required to perform all duties listed, and may be required to perform additional, position-specific tasks. • Conducts pre-operations inspections to ensure machine is ready to be operated in safe and efficient manner., • Reads and executes daily production schedule as directed by supervisor., • Will measure, mark, and scribe dimensions and reference points on material or work piece as guides for subsequent machining., • Selects, aligns, and secures holding fixtures, cutting tools, attachments, accessories, and materials on machinery., • Calculates and sets controls to regulate machining factors such as speed, feed, coolant flow, and depth and angle of cut., • Starts and observes machine operation to detect malfunctions or out-of-tolerance machining and adjusts machine controls or control media as required and reports problems to supervisor as necessary., • Verifies conformance of finished work piece to specifications and stops production if any part that is detected to be out of specification., • Will confer with Machine Shop Supervisor to resolve machining problems., • Produces daily production reports, inspections and other reports as directed by supervisor., • Must have understanding and knowledge of company procedures and work instructions., • Maintains a safe and organized workstation and follows all company policies and safety procedures. Supervisory Responsibilities This job has no supervisory responsibilities. , 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. Basic Qualification * High school diploma or equivalent GED. * A minimum of three years of related experience * Minimum three years' experience working with close tolerance practices of +/- .010 or less, in a manufacturing environment. * Understand how to read blueprints, sketches, drawings, manuals, specifications, or sample part to determine dimensions and tolerances of finished work piece, sequence of operations, and setup requirements. * Employees must be legally authorized to work in the United States. * Verification of employment eligibility will be required at the time of hire. Visa sponsorship is not available for this position. * This position is subject to the International Traffic in Arms Regulations (ITAR) which requires U.S. person status. ITAR defines U.S. person as an U.S. Citizen, U.S. Permanent Resident (i.e. 'Green Card Holder'), Political Asylee, or Refugee. Language Skills Ability to read and comprehend simple instructions, short correspondence, and memos. Ability to write simple correspondence. Ability to effectively present information in one-on-one and small group situations to customers, clients, and other employees of the organization. Mathematical Skills Ability to add, subtract, multiply, and divide in all units of measure, using whole numbers, common fractions, and decimals. Ability to compute rate, ratio, and percent and to draw and interpret bar graphs. Reasoning Ability Ability to apply common sense understanding to carry out instructions furnished in written, oral, or diagram form. Ability to deal with problems involving several concrete variables in standardized situations. Physical Demand The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is regularly required to stand, walk quickly, use hands to finger, handle or feel, reach with hands and arms, and talk and hear in a load and hot environment. The employee frequently is required to stoop, kneel, or crouch, and climb onto equipment. The employee is occasionally required to sit. The employee must frequently lift and/or move up to 50 pounds. Specific vision abilities required for this job include close vision, distance vision, peripheral vision, depth perception, and ability to focus. Work Environment The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job; Reasonable accommodations may be made to enable individuals with disabilities to perform the essential job functions. While performing the duties of this job, the employee is regularly exposed to moving mechanical parts and extreme heat. The employee is occasionally exposed to fumes or airborne particles, toxic or caustic chemicals, outside weather conditions and vibration. The noise level in the work environment is usually loud. Pay $22-29/ hour. Exact compensation may vary based on skills, experience, and location. Location Rancho Plant 2 - Fontana, CA. Schedule 1st shift, 4am-12:30pm, Monday-Friday. , Howmet Aerospace Inc. (NYSE: HWM), headquartered in Pittsburgh, Pennsylvania, is a leading global provider of advanced engineered solutions for the aerospace and transportation industries. Our primary businesses focus on jet engine components, aerospace fastening systems, titanium structural parts and forged wheels. With $7.4 Billion in revenue in 2024, our products play a crucial role in enabling fuel efficiency and lightweighting, contributing to our customers' success and making a positive impact on the world. To learn more about the way Howmet Aerospace Inc. is advancing the sustainability of our customers, markets, and communities where we operate, review the 2024 Environmental Social and Governance report at ___. Follow: ___, ___, ___, ___, and ___. Equal Opportunity Employer: Howmet is proud to be an Equal Employment Opportunity employer. We are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or other applicable legally protected characteristics. If you need assistance to complete your application due to a disability, please email

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