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Orange County, CA mechanical construction jobs — current openings in commercial HVAC, plumbing, piping, sheet metal, building automation, and BIM/VDC. Every posting below is prefiltered to the Orange County market and comes from a contractor actively hiring, not a job-board scrape.
Gulfstream Strategic Placements recruits project managers, superintendents, estimators, service managers, detailers, and HVAC/chiller technicians for Orange County-area mechanical and HVAC contractors working Healthcare (OSHPD/HCAI), Life Science / Biotech, Class-A Office TI projects. Applications go straight to a recruiter who knows the market — most candidates hear back within one business day, and every search stays confidential.
Explore Orange County hiring All open roles in Orange County Industrial Centrifugal Chiller Technician — Orange County, CA Commercial Mechanical Service Technician — Orange County, CA Commercial Mechanical Construction Project Manager - Orange County — Orange County, CA Mechanical Project Engineer - Orange County — Orange County, CA Process Piping Project Engineer — Orange County, CA Plumbing Project Engineer — Orange County, CA HVAC Project Engineer — Orange County, CA Plumbing/hvac Assistant Project Manager — Orange County, CA HVAC Tenant Improvement Project Manager - Orange County — Orange County, CA Plumbing Estimator — Orange County, CA Building Automation Design Engineer - Orange County — Orange County, CA Controls Software Engineer - Orange County — Orange County, CA Electrical Journeyman - Orange County — Orange County, CA Service Project Manager - Orange County — Orange County, CA Controls Service Sales Engineer - Orange County — Orange County, CA Electrical Foreman - Orange County — Orange County, CA Mechanical Construction Project Manager - Orange County — Orange County, CA Electrical Project Manager - Orange County — Orange County, CA Controls Project Engineer - Orange County — Orange County, CA Fabrication Shop Administrative Assistant - Orange County — Orange County, CA HVAC Estimator — Orange County, CA Piping Project Manager — Orange County, CA HVAC Project Manager — Orange County, CA Preconstruction Manager - Orange County — Orange County, CA Tenant Improvement Project Engineer - Orange County — Orange County, CA Sr HVAC Design Engineer, PE — Orange County, CA Retrofit Project Engineer - Orange County — Orange County, CA Plumbing Tenant Improvement Project Manager - Orange County — Orange County, CA Project Engineer — Orange County, CA Plumbing Project Manager — Orange County, CA Service Sales Engineer - Plumbing — Costa Mesa, CA HVAC Service Sales Engineer — Costa Mesa, CA Detailer — Costa Mesa, CA Foreperson — Costa Mesa, CA Project Manager - Process Piping — Costa Mesa, CA Project Executive - Process Piping — Costa Mesa, CA Project Manager — Costa Mesa, CA Project Engineer — Costa Mesa, CA Lead Structural Engineer — Costa Mesa, CA Senior Structural Engineer — Costa Mesa, CA Project Executive — Costa Mesa, CA Senior Project Manager — Costa Mesa, CA TABB Technician - HVAC — Orange County, CA Regional Safety Manager — Orange County, CA Commercial Chiller Service Technician — Orange County, CA Director of Sales - Commercial HVAC — Orange County, CA Fleet Manager — Orange County, CA HR Union Payroll Specialist — Orange County, CA Power BI Assistant — Orange County, CA Assistant Controller — Orange County, CA BAS Service Sales — Orange County, California Project Manager — Orange County, California Assistant Project Manager — Orange County, California Plumbing Design Engineer — Orange County, California HVAC Project Manager — Orange County, ca Chiller Mechanic — Orange County, CA HVAC Sales Engineer - Service Division — Orange County, CA Mechanical PM - Orange County — Orange County, CA Preconstruction Coordinator — Orange County, CA VDC Project Lead - Mechanical — Orange County, CA Senior Chiller Technician — Orange County, CA Assistant project manager — Orange County California Building Automation Controls Project Manager — Orange County, CA Featured hiring & salary guides