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Mechanical Assembler Jobs in Riverside, CA (NOW HIRING)

Astrophysics Inc.

Mechanical Assembler

Walnut, CA · On-site

$18/hr

The Mechanical Assembler is responsible for assembling the mechanical components of Astrophysics x-ray security machines. This role involves using handheld tools to fasten and connect parts ...

Managed Staffing

Mechanical Assembler

City Of Industry, CA · On-site

$18.25 - $22.75/hr

Mechanical Assembler Location: City of Industry, CA 91746 Shift: 1st Shift | 7:00 AM - 3:30 PM | OT Required Company Overview: Seeking a Manufacturing Assembler at the City of Industry location. We ...

Astrophysics Inc.

Mechanical Assembler

City Of Industry, CA · On-site

$18.75 - $23.50/hr

The Mechanical Assembler is responsible for assembling the mechanical components of Astrophysics x-ray security machines. This role involves using handheld tools to fasten and connect parts ...

VOLT

Mechanical Assembler

Walnut, CA · On-site

$18/hr

As a Mechanical Assembler you will: * Day to Day Responsibilities * Assemble mechanical components of x-ray machines following manufacturing plans, drawings and instructions * Use handheld tools to ...

Flex Ltd

Mechanical Assembler

Fontana, CA · On-site

$18.59 - $25.10/hr

Report to the Production Manager, Mechanical Assembler is responsible for assembling fabricated metal parts for enclosure buildings according to specifications. What a typical day looks like:

Flex Ltd

Mechanical Assembler

Fontana, CA · On-site

$18.59 - $25.10/hr

Report to the Production Manager, Mechanical Assembler is responsible for assembling fabricated metal parts for enclosure buildings according to specifications. What a typical day looks like:

Crown Technical Systems

Mechanical Assembler

Fontana, CA · On-site

$18.59 - $25.10/hr

Report to the Production Manager, Mechanical Assembler is responsible for assembling fabricated metal parts for enclosure buildings according to specifications. What a typical day looks like:

Multiquip

Mechanical Assembler l

San Bernardino, CA · On-site

$20 - $22/hr

Mechanical Assembler I - Power Equipment FullTime NonExempt OnSite (San Bernardino, CA) Monday-Friday (Overtime as Needed) We are seeking a skilled and detailoriented Mechanical Assembler I to ...

Flex

Mechanical Assembler

Fontana, CA

$18.59 - $25.10/hr

Report to the Production Manager, Mechanical Assembler is responsible for assembling fabricated metal parts for enclosure buildings according to specifications. What a typical day looks like:

iStaffing

Electrical Mechanical Assembler

Orange, CA · On-site

$676/wk

Electro Mechanical Assembler Duties and responsibilities include Assemble electro mechanical components perform cable and wire harness assembly, routing, crimping, and termination read and interpret ...

Belcan

Mechanical Assembler / Technican

Irvine, CA · On-site

$22 - $25/hr

Job Title: Mechanical Assembler / Technician Pay Rate: $22 - 25/hr. Location: Irvine, CA Area Code: 949 ZIP Code: 92618 Start Date: Right Away Shift: 5:00 AM - 1:30 PM Keywords: #Irvinejobs ...

Multiquip

Mechanical Assembler l

San Bernardino, CA

$20 - $22/hr

Mechanical Assembler I - Power Equipment Full‑Time * Non‑Exempt * On‑Site (San Bernardino, CA) * Monday-Friday (Overtime as Needed) We are seeking a skilled and detail‑oriented Mechanical ...

Winpak Ltd

Mechanical Assembler

Rialto, CA · On-site

Winpak Lane is seeking a Mechanical Assembler to join our Assembly team in Rialto, California. You will build and align custom packaging machinery from blueprints, verify component quality, and help ...

General Micro Systems, Inc.

Be Seen First

Mechanical Assembler

Rancho Cucamonga, CA · On-site

$21/hr

... mechanical and electrical assemblies and sub-assemblies, using hand tools, and electronic and ... Assemble and test according to blueprints, diagrams and specifications using hand tools, power ...

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All JobsMechanical Assembler JobsMechanical Assembler Jobs in Riverside, CA

Mechanical Assembler information

See Riverside, CA salary details

$13

$20

$27

How much do mechanical assembler jobs pay per hour?

As of Aug 20, 2026, the average hourly pay for mechanical assembler in Riverside, CA is $20.71, according to ZipRecruiter salary data. Most workers in this role earn between $18.08 and $22.55 per hour, depending on experience, location, and employer.

What does a mechanical assembler do?

A mechanical assembler puts together or fabricates components for machines or mechanical products. In this career, you can work on a production line or assemble complete products in a workshop or factory setting. Your duties and responsibilities vary slightly depending on the products you assemble. In some positions, you read blueprints, gather components, and align them to ensure full functionality. Some assemblers also have testing duties, testing each machine and making adjustments as necessary. In some cases, you use tools to fabricate parts or connect components. You may add lubricants, coatings, or paint as needed.

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

To thrive as a Mechanical Assembler, you need solid mechanical aptitude, manual dexterity, and basic knowledge of assembly procedures, often supported by a high school diploma or technical training. Familiarity with hand and power tools, blueprint reading, and safety protocols is typically required, and some employers may prefer certifications like IPC or OSHA. Attention to detail, teamwork, and problem-solving abilities are valued soft skills that set top performers apart. These skills and qualities are crucial for ensuring precise assembly, maintaining product quality, and supporting efficient manufacturing operations.

What are some common challenges mechanical assemblers face on the job, and how can they be addressed?

Mechanical Assemblers often encounter challenges such as interpreting complex blueprints, working with precise tolerances, and coordinating with team members to ensure timely project completion. Staying detail-oriented and regularly reviewing assembly drawings can help reduce errors. Effective communication with engineers and quality control staff is also essential to address any issues quickly and maintain high standards. Many employers provide ongoing training to help assemblers keep up with evolving technologies and assembly techniques.

What is the difference between Mechanical Assembler vs Electrical Assembler?

AspectMechanical AssemblerElectrical Assembler
CredentialsHigh school diploma or equivalent; some roles may require technical trainingHigh school diploma; electrical certifications or licenses may be preferred
Work EnvironmentManufacturing plants, assembly lines, workshopsManufacturing facilities, often working with wiring and electrical components
Industry UsageAutomotive, aerospace, machinery manufacturingElectronics, appliance manufacturing, automation
Common TasksAssembling mechanical parts, using hand tools, reading blueprintsWiring, testing electrical systems, using multimeters

Mechanical Assemblers focus on assembling mechanical components and systems, while Electrical Assemblers specialize in wiring and electrical systems. Both roles require attention to detail and technical skills, but they differ in the tools and knowledge areas involved.

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

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

What cities near Riverside, CA are hiring for Mechanical Assembler jobs?

Cities near Riverside, CA with the most Mechanical Assembler job openings:

Mechanical Assembler jobs near you
Infographic showing various Mechanical Assembler job openings in Riverside, CA as of August 2026, with employment types broken down into 88% Full Time, 10% Part Time, 1% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $43,080 per year, or $20.7 per hour.

Mechanical Assembler

Astrophysics Inc.

Walnut, CA • On-site

$18/hr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 25 days ago

Job description

Astrophysics Inc. is a leading global designer and manufacturer of X-Ray security inspection systems. Since 2002, we have dedicated ourselves to ensuring a safer world through advanced X-Ray screening and imaging technology. Our systems are deployed in critical infrastructure, aviation, and ports and borders sites in more than 150 countries. Hotels, prisons, courthouses, embassies, airports, military bases, and government buildings around the world depend on us for their safety and security. Astrophysics is an expanding, dynamic and fast-paced company looking for individuals who want to grow with us and be a part of a meaningful security mission. We currently have an immediate opening for a Mechanical Assembler located in City of Industry, California. This position is temporary with the opportunity for permanent employment.
Job Summary:
The Mechanical Assembler is responsible for assembling the mechanical components of Astrophysics x-ray security machines. This role involves using handheld tools to fasten and connect parts, including large panels, while maintaining quality and safety standards. Assemblers work in a team, each completing specific tasks to build units that are utilized globally.
Essential Functions:
  • Assemble mechanical components of X-ray security systems in accordance with engineering drawings, work instructions, and manufacturing specifications
  • Utilize hand and power tools to accurately fasten, secure, drill, and align components to required tolerances
  • Install and connect large panels and structural components to ensure proper fit, alignment, and system integrity
  • Collaborate with team members on assigned assembly tasks to efficiently complete units and meet production targets
  • Inspect assembled components to ensure quality standards and safety requirements are met throughout the build process

Education and Experience:
  • High School Diploma or GED
  • 6 months to 1 year experience in mechanical assembly preferred

Shift and Schedule:
  • Full-time, M-F, 7:00 am to 3:30 pm, with occasional overtime and weekend shifts as needed to support business operations

Benefits & Perks:
  • Excellent medical, dental and vision benefits
  • 401K plan with 4% employer match
  • 11 paid holidays, 10 PTO days
  • Free donuts on Fridays, company luncheons and year end party!

Be part of a meaningful security mission with opportunities for personal and professional growth and development. Join our Astrophysics family today!
Equal Opportunity Employer
Astrophysics Inc. provides equal employment and advancement opportunities to all individuals. Employment decisions at Astrophysics Inc. are based on merit, qualifications and abilities. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity national origin or protected veteran status and will not be discriminated against on the basis of disability. If you need assistance or an accommodation while seeking employment, please call 1(909) 598-5488 and ask for Human Resources. Determinations on requests for reasonable accommodation will be made on a case-by-case basis.

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