Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment. Our team is engineered for impact™, helping clients achieve critical goals, advancing our team members through growth and opportunity, and operating at the center of important global issues, including sustainability and decarbonization. We are a top firm as ranked by Engineering News-Record and Consulting-Specifying Engineer…
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Full company description
Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
Our team is engineered for impact™, helping clients achieve critical goals, advancing our team members through growth and opportunity, and operating at the center of important global issues, including sustainability and decarbonization.
We are a top firm as ranked by Engineering News-Record and Consulting-Specifying Engineer, and we have appeared for over a decade on the Inc. 5000 list of North America’s fastest-growing private companies.
LinkedIn followers
58,289
People associated on LinkedIn
2,142
Reported office locations
8825 Research Dr, Irvine, California 92618, US
Other recorded names
M/E Engineering
Salas O'Brien
Specialties
Architecture and Interiors
Commissioning
Fire Protection
LEED and Cost Estimating
Energy Efficiency
Alternative Energy: Fuel Cells
Wind
Solar and Geothermal
Technology Design
Structural Engineering
Civil Engineering
Acoustics
Lighting Design
Mechanical
Electrical
Plumbing
and Security
Profile identifies a recruitment agency
No
Industry
Engineering Services
Size
1,001-5,000 employees
Headquarters
Irvine, California
Organization type
Privately Held
Specialties
Architecture and InteriorsCommissioningFire ProtectionLEED and Cost EstimatingEnergy EfficiencyAlternative Energy: Fuel CellsWindSolar and GeothermalTechnology DesignStructural Engineering
Salas O'Brien has 17 open jobs in Canada as of November 6, 2026. Top locations: Montréal, Vancouver and Ottawa.
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
5+ YOECandidates need a mechanical engineering degree or a technologist or technician diploma, plus 5+ years of MEP construction, commissioning or project management experience. They also need knowledge of mechanical equipment, building codes and controls, and a valid Ontario driver's licence.
MS Word, MS Excel, MS Project, Building Automation Systems
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
2+ YOESalas O'Brien needs a mechanical engineering degree or a technologist or technician diploma in a related field, plus 2+ years of MEP construction, commissioning or project management experience. Candidates also need strong written and verbal communication, attention to detail, MS Office skills, and a valid driver's licence with reliable transportation.
MS Word, MS Excel, MS Project, cloud-based commissioning software
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
5+ YOECandidates need an engineering or technologist credential in a related field, 5+ years of MEP construction, commissioning and project management experience, and knowledge of building codes and HVAC equipment. A valid driver's licence and reliable transportation are required.
MS Word, MS Excel, MS Project, cloud-based commissioning software, Building Automation Systems
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
5+ YOECandidates need a mechanical engineering degree or a technologist or technician diploma in a related field, plus 5+ years of MEP construction, commissioning or project management experience. They must know commissioning and HVAC equipment, codes and building automation, and hold a valid driver's licence.
MS Word, MS Excel, MS Project, Cloud-based commissioning software, Building Automation Systems
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
5+ YOECandidates need 5+ years of MEP commissioning or construction experience and a mechanical engineering, mechatronics or technologist credential. They also need knowledge of HVAC, containment and pressurization systems, reliability clearance and a valid Ontario driver's licence.
MS Word, MS Excel, MS Project, Building Automation Systems, Cloud-based commissioning software
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
5+ YOECandidates need a bachelor's degree or 5+ years of MEP construction, commissioning and project management experience, plus OSHA 10 and NFPA 70E. Hands-on knowledge of medium voltage gear, UPS, switchgear and LOTO, and comfort around live power systems, are essential.
Building automation systems, Medium voltage gear, Switchgear, UPS systems, Generators, Static transfer switches
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
2+ YOECandidates need an electrical engineering degree or a related technologist or technician diploma, plus at least 2 years of MEP construction, commissioning or project management experience. Strong written and verbal communication, attention to detail, MS Office skills, and a valid driver's licence with reliable transportation are also required.
MS Word, MS Excel, MS Project, Cloud-based commissioning software
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
5+ YOECandidates need a bachelor's degree in a related field or 5+ years of MEP construction, commissioning and project management experience. They need OSHA 10, NFPA 70E, knowledge of mechanical equipment and building automation, and a valid driver's licence and car.
Building Automation Systems, Methods of Procedure, Sequences of Operation, Testing, Adjusting and Balancing
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
2+ YOECandidates need a mechanical engineering degree or a technologist or technician diploma in a related field, plus 2+ years of MEP construction, commissioning or project management experience. They also need strong written and verbal communication, attention to detail, MS Office skills, a valid Ontario driver's licence, and Secret or Top Secret security clearance.
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
1+ YOECandidates need a mechanical engineering degree with HVAC, fluid dynamics and thermodynamics courses, and 1 to 2 years of mechanical design experience. Revit experience, an Ontario driver's licence and access to a vehicle are also required.
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
4+ YOEDiplôme universitaire en génie et membre en règle de l'OIQ; 4 à 8 ans d'expérience en ingénierie, dont en gestion de projets; Excellent français et bon niveau d'anglais
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
5+ YOECandidates need at least five years designing mechanical systems for commercial, institutional or industrial buildings, plus an engineering degree or diploma. Strong leadership, client service, communication and knowledge of Ontario building code, ASHRAE, CSA and NFPA standards are also required.
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
5+ YOEFormation technique en génie industriel, mécanique ou procédés; Au moins 5 années d'expérience pertinente; Bonne maîtrise du français et bon niveau d'anglais
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
5+ YOEBaccalauréat en génie mécanique avec au moins 5 ans d'expérience pertinente; Membre en règle de l'Ordre des Ingénieurs du Québec; Bilinguisme français et anglais, à l'oral et à l'écrit
MS Project, MS Office, AutoCAD, Bluebeam, Excel, Word
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
3+ YOECandidates need 3+ years of plumbing and drainage design experience, proficiency in Revit and AutoCAD, and knowledge of Canadian building and plumbing codes. Fire protection design exposure and a C.Tech. or C.E.T. designation are assets.
Revit, AutoCAD, Microsoft Word, Microsoft Excel, Microsoft Outlook
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
8+ YOECandidates need 8 to 10+ years of acoustics design and measurement experience, with environmental and architectural acoustics expertise. A minimum bachelor's degree in engineering or a STEM field is required, along with SoundPlan modelling skills.
Salas O'Brien: Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.
8+ YOE3+ MgmtCandidates need a bachelor's degree in accounting, finance or commerce, with 8 to 12 years of progressive accounting experience including 3 to 5 years in a leadership role. Strong knowledge of IFRS or ASPE, project accounting, internal controls, budgeting and ERP systems is required, and a CPA designation is preferred.