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Union Apprentice Jobs in Riverside, CA (NOW HIRING)

EMCOR Group Inc

Mesa Energy Systems, Inc.

Riverside, CA · On-site

$31.32 - $65.49/hr

Must have completed 4-year apprenticeship program or technical schooling * Must have 5+ years of ... Benefits are provided through local labor union aligned with collective bargaining agreement.

MWH

Senior Resident Engineer

Corona, CA · On-site

$140K - $175K/yr

An equivalent combination of experience, skills, and training and/or trade school/ apprenticeship ... Thorough knowledge of all aspects of construction (technology, equipment, methods), union ...

MWH

Senior Resident Engineer

Corona, CA · On-site

$140K - $175K/yr

An equivalent combination of experience, skills, and training and/or trade school/ apprenticeship ... Thorough knowledge of all aspects of construction (technology, equipment, methods), union ...

MWH

Senior Resident Engineer

Corona, CA · On-site

$140K - $175K/yr

An equivalent combination of experience, skills, and training and/or trade school/ apprenticeship ... Thorough knowledge of all aspects of construction (technology, equipment, methods), union ...

ASM Global

Sous Chef (Angel Stadium)

Anaheim, CA · On-site

$70K - $75K/yr

Culinary degree or completion of a certified apprenticeship program * Minimum of 2-3 years of ... Experience managing in a union environment strongly preferred SKILLS AND ABILITIES * Demonstrated ...

ASM Global

Sous Chef (Angel Stadium)

Anaheim, CA · On-site

$70K - $75K/yr

Culinary degree or completion of a certified apprenticeship program * Minimum of 2-3 years of ... Experience managing in a union environment strongly preferred SKILLS AND ABILITIES * Demonstrated ...

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All JobsUnion Apprentice JobsUnion Apprentice Jobs in Riverside, CA

Union Apprentice information

See Riverside, CA salary details

$12

$22

$38

How much do union apprentice jobs pay per hour?

As of Jul 10, 2026, the average hourly pay for union apprentice in Riverside, CA is $22.98, according to ZipRecruiter salary data. Most workers in this role earn between $18.08 and $25.10 per hour, depending on experience, location, and employer.

What do union apprentices do?

Union apprentices perform skilled trades work under the supervision of experienced workers, gaining hands-on experience while learning industry standards. They often work on construction sites or in manufacturing environments, using tools and equipment relevant to their trade, and may earn certifications as they progress through their training programs.

Can apprentices join a union?

Yes, many apprenticeships are part of union programs, allowing apprentices to join the union representing their trade. Union membership often provides benefits such as collective bargaining, training, and job protections during the apprenticeship period.

What types of tasks and responsibilities can I expect as a union apprentice on a typical workday?

As a union apprentice, your daily responsibilities will often include assisting experienced journeymen with hands-on tasks, preparing job sites, operating tools and machinery under supervision, and learning essential trade skills through practical experience. You will also attend scheduled classroom training sessions where you'll study safety protocols, trade theory, and industry best practices. Collaboration is important, as you'll work closely with other apprentices and seasoned professionals, receiving feedback and gradually taking on more complex assignments as your skills develop. This structure ensures you gain a comprehensive understanding of the trade while building strong working relationships within your union team.

What is the difference between Union Apprentice vs Electrician?

AspectUnion ApprenticeElectrician
CredentialsApprenticeship program, on-the-job training, and classroom instructionJourneyman or master electrician license, certifications
Work EnvironmentConstruction sites, industrial settings, regulated union environmentsConstruction, maintenance, industrial facilities, residential projects
Employer & Industry UsageUnion-based construction companies, electrical contractorsElectrical contractors, industrial firms, maintenance companies

Union Apprentices are in training programs that combine classroom learning with on-the-job experience, often working under supervision. Electricians are fully qualified professionals with licensing and certifications, capable of working independently. While apprentices are in the process of becoming electricians, both roles are integral to electrical work in various industries.

What is the $5000 apprentice incentive?

The $5000 apprentice incentive is a financial bonus offered to new union apprentices upon starting or completing certain milestones in their training program. It aims to attract and retain apprentices by providing additional support during their apprenticeship, which includes on-the-job training and classroom instruction. Eligibility and specific conditions vary by union and program.

What is a union apprentice?

A union apprentice is an individual who is learning a skilled trade through a structured program managed by a labor union. Apprenticeships combine on-the-job training with classroom instruction and allow apprentices to earn while they learn. Union apprenticeships are typically sponsored by joint labor-management committees and are designed to develop the skills needed for a specific trade, such as electrician, plumber, or carpenter. Upon completion, apprentices usually become journeymen and can work independently in their trade.

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

To thrive as a Union Apprentice, you need a basic understanding of trade skills, a high school diploma or GED, and often must meet specific union entry requirements. Familiarity with hand and power tools, safety protocols, and sometimes OSHA certification are commonly required. Strong work ethic, eagerness to learn, teamwork, and good communication skills help apprentices excel in demanding environments. These attributes are vital for ensuring safety, skill development, and effective collaboration on job sites.

Can I join a union with no experience?

Union apprenticeships typically do not require prior experience; they are designed to train new workers through structured programs that combine on-the-job training with classroom instruction. Applicants usually need to meet basic requirements such as age, education, and physical fitness, and may need to pass an aptitude test or interview. Once accepted, apprentices learn skills and earn wages while working under supervision.
What are the most commonly searched types of Union jobs in Riverside, CA? The most popular types of Union jobs in Riverside, CA are:
What are popular job titles related to Union Apprentice jobs in Riverside, CA? For Union Apprentice jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Union Apprentice jobs in Riverside, CA look for? The top searched job categories for Union Apprentice jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Union Apprentice jobs? Cities near Riverside, CA with the most Union Apprentice job openings:
Union Apprentice jobs near you
Infographic showing various Union Apprentice job openings in Riverside, CA as of July 2026, with employment types broken down into 91% Full Time, 8% Part Time, and 1% Contract. Highlights an 100% Physical job distribution, with an average salary of $47,788 per year, or $23 per hour.
Mesa Energy Systems, Inc.

Mesa Energy Systems, Inc.

EMCOR Group Inc

Riverside, CA • On-site

$31.32 - $65.49/hr

Full-time

Re-posted 28 days ago

Job description

We are a full-service HVAC, building automation, chiller, and retrofit contractor with a reputation for combining high-quality consulting services with customized energy solutions. Our integrated, single-source solutions include turnkey in-house capabilities with design assistance, as well as engineering applications and automated control systems.


Mesa Energy Systems has an immediate need for a Boiler Technician. The Boiler Technician follows preventative maintenance, troubleshoot, test and repairs all boiler controls and system components.


  • Maintain daily operations of boilers. 
  • Complete daily checks and maintain necessary operating records. 
  • Perform PM maintenance and repairs to boilers and associated equipment. 
  • Perform monthly testing of all safeties. 
  • Complete annual tuning and inspections of boilers. 
  • Monitor chemical feeds for boiler systems. 
  • Monitor exhaust/stack emissions.  

  • Must have completed 4-year apprenticeship program or technical schooling 
  • Must have 5+ years of commercial air conditioning experience 
  • Must be available for emergency call outs 
  • Must be a team player and able to work with other trades and client’s staff. 
  • Rule 1415 certified 
  • EMS experience a plus (Staefa/Siemens) 
  • Valid driver's license in good standing 

#Mesa #LI-Mesa #LI-HVACjobs #LI-Onsite  


As a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/Disabled

Please review our Affirmative Action Policy.


Notice to prospective employees: There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companies list open positions here. Please check our available positions to confirm that a post or email is genuine.
EMCOR Group and its companies do not reach out to individuals to help with marketing or other similar services. If an individual is contacted for services outside of EMCORs normal application process it is probably fraudulent.

Compensation Range:   $31.32 - $65.49 per hour The hourly rate is determined by the CBA/rate sheet and test results. Benefits are provided through local labor union aligned with collective bargaining agreement. 

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