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Home › Jobs › Jobs in Orange County, CA

Jobs in Orange County, CA

Gulfstream commercial mechanical job listings for Orange County, CA. Posting dates and job-specific application links appear below. Map pins mark markets, not job sites; union rates are independent reference schedules, not employer pay offers.

Orange County jobs by role

  • HVAC technician jobs
  • Pipefitter jobs
  • Estimator jobs
  • Controls technician jobs
  • HVAC technician jobs
  • Mechanical Project Manager jobs
  • HVAC Chiller Mechanic jobs
  • Plumbing Design Engineer jobs

Search Orange County openings · Apply confidentially · Gulfstream careers · All city job hubs

Gulfstream’s office is in Corona, California. Orange County, CA is a recruiting service area, not a local office. Role pages do not establish a current opening.

All open jobs in Orange County, CA

43 live openings in Orange County, CA today.

  • Commercial Mechanical Estimator, Orange County, CA · Full-time · Posted Nov 9, 2026

    Competitive salary depending on experience

    Apply
  • Commercial Mechanical Project Manager, Orange County, CA · Full-time · Posted Nov 8, 2026

    Competitive salary depending on experience

    Apply
  • Senior HVAC Project Manager, Multifamily and High-Rise, Orange County, CA · Full-time · Posted Oct 29, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Project Engineer, Multifamily and High-Rise, Orange County, CA · Full-time · Posted Oct 29, 2026

    Competitive salary depending on experience

    Apply
  • Assistant Project Manager, HVAC and Plumbing, Orange County, CA · Full-time · Posted Oct 29, 2026

    Competitive salary depending on experience

    Apply
  • Mechanical Preconstruction Sales Engineer - Orange County, Orange County, CA · full-time · Posted Oct 28, 2026

    Competitive salary depending on experience

    Apply
  • Mechanical Construction Project Engineer - Orange County, Orange County, CA · full-time · Posted Oct 28, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Commissioning and Startup Technician, Orange County, CA · full-time · Posted Oct 28, 2026

    Competitive salary depending on experience

    Apply
  • Building Automation Controls Project Manager - Orange County, Orange County, CA · full-time · Posted Oct 28, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Service Dispatcher and Customer Service Representative, Orange County, CA · full-time · Posted Oct 28, 2026

    Competitive salary depending on experience

    Apply
  • Mid to Senior HVAC Service Technician - Orange County, Orange County, CA · full-time · Posted Oct 28, 2026

    Competitive salary depending on experience

    Apply
  • Mechanical Preconstruction Engineer - Orange County, Orange County, CA · full-time · Posted Oct 27, 2026

    Competitive salary depending on experience

    Apply
  • Plumbing Preconstruction Manager - Orange County, Orange County, CA · full-time · Posted Oct 27, 2026

    Competitive salary depending on experience

    Apply
  • Commercial Mechanical Construction Project Manager - Orange County, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Commercial Mechanical Service Technician, Orange County, CA · Full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Controls Project Engineer - Orange County, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Controls Service Sales Engineer - Orange County, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Controls Software Engineer - Orange County, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Estimator, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Project Engineer, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Project Manager, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Sales Engineer - Service Division, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Service Sales Engineer, Costa Mesa, CA · Full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Service Sales Representative, Orange County, CA · Full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • HVAC Tenant Improvement Project Manager - Orange County, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Industrial Centrifugal Chiller Technician, Orange County, CA · Full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Mechanical Construction Project Manager - Orange County, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Mechanical Project Engineer - Orange County, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Piping Project Manager, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Plumbing Estimator, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Plumbing Project Engineer, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Plumbing Project Manager, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Plumbing Tenant Improvement Project Manager - Orange County, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Plumbing/hvac Assistant Project Manager, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Process Piping Project Engineer, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Project Executive - Process Piping, Costa Mesa, CA · Full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Project Manager - Process Piping, Costa Mesa, CA · Full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Service Sales Engineer - Plumbing, Costa Mesa, CA · Full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Sr HVAC Design Engineer, PE, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • VDC Project Lead - Mechanical, Orange County, CA · Full-Time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • BAS / DDC Controls Technician, Orange County, CA · Full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Building Automation Design Engineer - Orange County, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply
  • Building Automation Sales Engineer, Orange County, CA · full-time · Posted Oct 25, 2026

    Competitive salary depending on experience

    Apply

Union rates in Orange County

  • UA Local 582, journeyman $61.28/hr ($94.22/hr total package) effective 09/01/2026. Rates change each CBA cycle, confirm with the hall. UA Local 582 jobs in Orange County.
  • IBEW Local 441, journeyman $60.22/hr ($87.45/hr total package) effective 06/30/2025. Rates change each CBA cycle, confirm with the hall. IBEW Local 441 jobs in Orange County.

Union jobs in Orange County by local

  • IBEW Local 441 jobs in Orange County, Electricians, hall in Orange, CA.
  • UA Local 582 jobs in Orange County, Plumbers & Pipefitters, hall in Santa Ana, CA.

Union locals based in Orange County · Search jobs in Orange County

Orange County union news and job market update, who is hiring, halls based here and published journeyman rates.

Jobs near Orange County

  • Jobs in Costa Mesa, CA, 11 open roles.
  • Jobs in Corona, CA, 9 open roles.
  • Jobs in Commerce, CA, 6 open roles.
  • Jobs in Los Angeles, CA, 27 open roles.
  • Jobs in El Segundo, CA, 4 open roles.
  • Jobs in Inland Empire, CA, 8 open roles.

Browse all 52 Orange County jobs · Compare union wages

Orange County jobs by trade

  • Mechanical jobs in Orange County, CA
  • HVAC jobs in Orange County, CA
  • Plumbing jobs in Orange County, CA

Jobs, pay and union rates in Orange County, California

These openings sit in Orange County, California (CA) and the surrounding California market. We hold published wage sheets for 50 locals across California, so you can check scale before you take a call.

  • California union pay scales
  • Union jobs in Orange County
  • All open jobs by market

Other California job markets

  • Jobs in San Diego, CA
  • Jobs in Los Angeles, CA
  • Jobs in San Francisco, CA
  • Jobs in Sacramento, CA
  • Jobs in San Jose, CA
  • Jobs in Ventura County, CA
  • Jobs in Fresno, CA
  • Jobs in East Bay, CA

Union rates by city in California

  • Orange County, CA union rates
  • San Diego, CA union rates
  • Los Angeles, CA union rates
  • San Francisco, CA union rates
  • Sacramento, CA union rates
  • San Jose, CA union rates
  • Fresno, CA union rates
  • Inland Empire, CA union rates

Orange County jobs: common questions

How many HVAC and construction jobs are open in Orange County right now?
Gulfstream has 52 live direct-hire construction, mechanical and electrical openings in Orange County, CA, including 30 commercial HVAC roles. The list on this page updates as roles are filled or added, so what you see is what is actually open today.
What do union trades pay in Orange County?
Published journeyman rates for the halls based in Orange County, CA run from $60.22/hr (IBEW Local 441) to $61.28/hr (UA Local 582), before fringe benefits, up to $94.22/hr as a total package. Those figures come from each local's published wage sheet and change every CBA cycle, so confirm the current rate with the hall.
Which union locals are based in Orange County?
IBEW Local 441 (Electricians) and UA Local 582 (Plumbers & Pipefitters) have halls in the Orange County area. Each local sets its own jurisdiction, membership and dispatch rules, check the local's page for its address, phone number and published rate, then call the hall to confirm what applies to you.
Do I need to be a union member to apply for these Orange County jobs?
No. Gulfstream is an independent recruiter, not a union hall, and we do not run dispatch. The roles listed here are direct-hire positions with contractors and building owners; some are union-shop and some are open shop, and each employer sets its own requirement. Apply to the role that fits and we will tell you what that employer needs.
Are there apprentice or entry-level openings in Orange County?
Most roles we post are experienced, direct-hire positions. Apprenticeship indentures are run by the local halls themselves, not by us, start with the IBEW Local 441 apprenticeship information on the local's page and call the hall for intake dates. If you are early in the trade, set a Orange County job alert and we will email you when a helper, technician or assistant-level role opens here.
How do I get notified when new Orange County jobs are posted?
Use the Orange County job alert on this page. Pick the trades you want, add your email, and you will get a message when a matching role opens or reopens in Orange County, CA, not a daily blast. Every alert has a one-click unsubscribe link.

Orange County building-type career guides

  • Hospitals & Healthcare
  • Data Centers
  • Semiconductor Plants

Educational guides, not confirmed building-specific openings.

Featured hiring & salary guides

  • HVAC Service Manager Salary by Metro (2026)
  • Mechanical Superintendent Salary Guide (2026)
  • Controls / BAS Project Manager Salary Guide (2026)
  • How to Hire a Piping Superintendent (2026 Playbook)
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