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Grinder Jobs in Riverside, CA (NOW HIRING)

Aerotek

Machine Operator

Irvine, CA · On-site

$21 - $23/hr

Operate grinding machines to accurately grind metal spools into razor blades according to production specifications. * Set up machinery for daily operations, including configuring grinding and ...

CCS Corp

Tool Maker

Anaheim Hills, CA · On-site

$27.75 - $35.75/hr

... surface grinders, and EDM equipment Strong working knowledge of GD&T and blueprint reading Experience with precision measurement equipment (CMM, surface plates, gauging) Ability to machine to ...

CCS Corp

Tool Maker

Anaheim Hills, CA

$27.75 - $35.75/hr

... surface grinders, and EDM equipment Strong working knowledge of GD&T and blueprint reading Experience with precision measurement equipment (CMM, surface plates, gauging) Ability to machine to ...

Aerotek

Manual Machinist

Ontario, CA · On-site

$22.25 - $30.25/hr

Perform precision machining operations such as turning, milling, grinding, boring, and fitting on turbine components, valves, and other equipment received for repair. * Set up and operate manual ...

Costco Wholesale Corporation

Meat Cutter

Corona, CA · On-site

$15.75 - $21/hr

Position Summary Cuts and trims and prepares raw meat for sale using saws, knives, grinder, and tenderizer. Provides a high level of member service. Job Duties * Cuts and trims meat to Costco ...

Costco Wholesale Corporation

Meat Cutter

San Dimas, CA · On-site

$15.25 - $20.25/hr

Position Summary Cuts and trims and prepares raw meat for sale using saws, knives, grinder, and tenderizer. Provides a high level of member service. Job Duties * Cuts and trims meat to Costco ...

Costco Wholesale Corporation

Meat Cutter

Lake Elsinore, CA · On-site

$15.50 - $20.75/hr

Position Summary Cuts and trims and prepares raw meat for sale using saws, knives, grinder, and tenderizer. Provides a high level of member service. Job Duties * Cuts and trims meat to Costco ...

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All JobsGrinder JobsGrinder Jobs in Riverside, CA

Grinder information

See Riverside, CA salary details

$12

$19

$28

How much do grinder jobs pay per hour?

As of Sep 4, 2026, the average hourly pay for grinder in Riverside, CA is $19.82, according to ZipRecruiter salary data. Most workers in this role earn between $17.07 and $21.30 per hour, depending on experience, location, and employer.

What is a grinder?

A grinder is a machine operator who selects specific tools and equipment to finish products according to design specifications. As a grinder, your duties include the inspection of items coming off an assembly line, the removal of defective pieces, and the use of grinding machinery and CNC mill equipment to smooth or polish the surface of the products. Your responsibilities include setting up and operating tools and machinery, examining materials to identify defects, and selecting the appropriate tool or machine to correct defects and create a finished product that meets quality assurance standards.

What are grinder job specializations?

Grinders are skilled workers who operate grinding machines to shape, finish, or smooth metal and other materials. They use various types of grinding equipment, including bench grinders, surface grinders, and cylindrical grinders, to remove excess material and achieve precise surface finishes. Grinders are essential in industries like automotive, aerospace, and tool making, ensuring components meet exact specifications. Their work requires attention to detail, manual dexterity, and a strong understanding of safety protocols.

What are the key skills and qualifications needed to thrive as a grinder, and why are they important?

To thrive as a Grinder, you need mechanical aptitude, attention to detail, and experience with metalworking or machining, often supported by a high school diploma or technical training. Familiarity with grinding machines, precision measurement tools (like calipers and micrometers), and safety protocols is essential. Strong hand-eye coordination, problem-solving skills, and the ability to work independently set exceptional candidates apart. These skills ensure high-quality, precise output and maintain safety and efficiency in manufacturing environments.

What are some common challenges faced by grinders and how can they be addressed on the job?

Grinders often face challenges such as maintaining precision and consistency in their work, managing physical fatigue, and ensuring safety while operating heavy machinery. To address these, it's important to follow strict safety protocols, regularly inspect and maintain equipment, and take scheduled breaks to prevent strain. Additionally, collaborating closely with supervisors and quality control teams helps ensure that finished components meet required specifications and quality standards.

What is the difference between Grinder vs Machinist?

AspectGrinderMachinist
Required CertificationsOften requires precision machining certificationsRequires CNC or machining certifications
Work EnvironmentWorks primarily with grinding machines to finish partsOperates various machine tools to produce parts
Industry UsageCommon in manufacturing, metalworking, and tool-makingWidely used in manufacturing, aerospace, and automotive industries

While both grinders and machinists work in manufacturing environments and require technical skills, grinders focus on finishing parts with grinding machines, whereas machinists operate a variety of machine tools to create or modify parts. Understanding these differences helps employers and job seekers find the right fit in manufacturing roles.

More about Grinder jobs

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For Grinder jobs in Riverside, CA, the most frequently searched job titles are:

What job categories do people searching Grinder jobs in Riverside, CA look for?

The top searched job categories for Grinder jobs in Riverside, CA are:

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Cities near Riverside, CA with the most Grinder job openings:

Grinder jobs near you
Infographic showing various Grinder job openings in Riverside, CA as of August 2026, with employment types broken down into 96% Full Time, and 4% Nights. Highlights an 100% In-person job distribution, with an average salary of $41,225 per year, or $19.8 per hour.

Aerospace Manufacturing Technician - Grinder / Heat Treat / QC

FLAG Solutions LLC

Ontario, CA • On-site

$20 - $24/hr

Full-time

Posted 8 days ago

Job description

FLAG Solutions is hiring for multiple aerospace manufacturing positions throughout the Inland Empire, including Ontario, Rancho Cucamonga, Fontana, and Rialto.

We are specifically looking for candidates with experience in grinding/deburring, heat treat or furnace operations, forging, aerospace quality inspection, material handling, forklifts, machining, or metal manufacturing.

Pay: $20–$24/hr DOE | 1st, 2nd & 3rd shifts available


Grinder / Deburr

Candidates with grinding or finishing experience may perform duties such as:

  • Operate hand grinders, pneumatic grinders and other finishing tools.
  • Grind, deburr, blend and finish metal or aerospace components.
  • Remove excess material, burrs and surface imperfections.
  • Work from production instructions, blueprints or visual standards.
  • Inspect finished parts for defects and proper finish.
  • Use hand tools, power tools and measuring equipment.
  • Follow aerospace quality and safety procedures.

Preferred experience: grinding, deburring, polishing, metal finishing, aerospace parts, castings, forgings or machine-shop environments.


Heat Treat

Heat Treat candidates may perform duties such as:

  • Load and unload furnaces.
  • Prepare metal components for heat treatment.
  • Monitor furnace cycles, temperatures and production documentation.
  • Handle parts before and after heat treating operations.
  • Assist with racks, baskets, fixtures and furnace equipment.
  • Follow work instructions and safety procedures.
  • Maintain organized production and furnace areas.

Preferred experience: heat treat, furnaces, ovens, vacuum furnaces, salt bath, annealing, brazing, aerospace metals or industrial manufacturing.


Forge Helper / Hammer Helper

Candidates may assist with forging and heavy manufacturing operations, including:

  • Support forge operators, hammer operators and production personnel.
  • Load, move and position metal parts during production.
  • Assist with tooling, dies and production equipment.
  • Handle hot or heavy metal components using proper equipment.
  • Remove finished parts and prepare work areas for the next production cycle.
  • Use hand tools and basic shop equipment.
  • Follow PPE and high-temperature safety requirements.

Preferred experience: forging, hammer operations, foundry, heat treat, metalworking, steel manufacturing or heavy industrial production.


Quality Control / Inspector

Quality candidates may perform duties such as:

  • Perform visual and dimensional inspection of manufactured parts.
  • Read blueprints, drawings and work instructions.
  • Use calipers, micrometers, gauges and other measuring instruments.
  • Perform receiving, in-process or final inspections.
  • Identify non-conforming parts and document inspection results.
  • Verify parts meet customer and manufacturing requirements.
  • Follow established aerospace quality procedures.

Preferred experience: aerospace inspection, quality control, blueprint reading, GD&T, First Article Inspection or precision measuring instruments.


Material Handler

Material Handling candidates may perform duties such as:

  • Move and stage raw materials and finished aerospace components.
  • Load and unload materials throughout the facility.
  • Operate forklifts, pallet jacks or other material-handling equipment when qualified.
  • Pull materials for production orders.
  • Maintain accurate inventory and material locations.
  • Assist with shipping, receiving and warehouse operations.
  • Safely handle metal, tooling and production materials.

Preferred experience: forklift, material handling, warehouse, shipping/receiving, inventory, metals or aerospace manufacturing.


Qualifications

  • Previous manufacturing, aerospace, machining, metalworking, warehouse or industrial experience preferred.
  • Ability to work in a fast-paced manufacturing environment.
  • Experience using hand tools and power tools is preferred.
  • Ability to read basic work instructions and production paperwork.
  • Strong attention to safety and quality.
  • Ability to stand for extended periods and perform physical production work.
  • Ability to lift and move materials as required by the position.
  • Reliable attendance and transportation.
  • Must be comfortable working 1st, 2nd or 3rd shift, depending on the opening.