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Open Source Consultant Jobs in Riverside, CA (NOW HIRING)

EMCOR Group Inc

Mesa Energy Systems, Inc.

Riverside, CA · On-site

$48.41 - $56.95/hr

... consulting services with customized energy solutions. Our integrated, single-source solutions ... EMCOR Group and its companies list open positions here. Please check our available positions to ...

EMCOR Group Inc

Mesa Energy Systems, Inc.

Riverside, CA · On-site

$48.41 - $56.95/hr

... consulting services with customized energy solutions. Our integrated, single-source solutions ... EMCOR Group and its companies list open positions here. Please check our available positions to ...

EMCOR Group Inc

Mesa Energy Systems, Inc.

Irvine, CA · On-site

$48.41 - $56.95/hr

... consulting services with customized energy solutions. Our integrated, single-source solutions ... EMCOR Group and its companies list open positions here. Please check our available positions to ...

EMCOR Group Inc

Mesa Energy Systems, Inc.

Chino, CA · On-site

$48.41 - $56.95/hr

... consulting services with customized energy solutions. Our integrated, single-source solutions ... EMCOR Group and its companies list open positions here. Please check our available positions to ...

EMCOR Group Inc

Mesa Energy Systems, Inc.

Irvine, CA · On-site

$85K - $110K/yr

... consulting services with customized energy solutions. Our integrated, single-source solutions ... openings. Utilizing multiple sources and turning candidate research into viable pipelines. • Full ...

EMCOR Group Inc

Mesa Energy Systems, Inc.

Chino, CA · On-site

$40 - $90/hr

... consulting services with customized energy solutions. Our integrated, single-source solutions ... EMCOR Group and its companies list open positions here. Please check our available positions to ...

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Showing results 41-60

All JobsOpen Source Consultant JobsOpen Source Consultant Jobs in Riverside, CA

Open Source Consultant information

See Riverside, CA salary details

$10

$43

$90

How much do open source consultant jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for open source consultant in Riverside, CA is $43.35, according to ZipRecruiter salary data. Most workers in this role earn between $30.58 and $51.68 per hour, depending on experience, location, and employer.
Infographic showing various Open Source Consultant job openings in Riverside, CA as of August 2026, with employment types broken down into 1% As Needed, 77% Full Time, 19% Part Time, and 3% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $90,169 per year, or $43.4 per hour.

Commercial HVAC Boiler Technician

San Bernardino, CA • On-site

Mesa Energy Systems, Inc.
Construction • 501 - 1,000 employees
Learn more about Mesa Energy Systems, Inc.external

$31.32 - $65.49/hr

Full-time

Re-posted yesterday

Job description

About Us

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.

Job Summary

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.

Essential Duties & Responsibilities
  • 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.  
Qualifications
  • 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  

Equal Opportunity EmployerAs 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/DisabledAffirmative Action Policy

Please review our Affirmative Action Policy.

Notice to Prospective EmployeesNotice 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 EMCOR's normal application process - it is probably fraudulent.Geographic Disclosure

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. 

Employment Type: FULL_TIME

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