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Salas O'Brien

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Salas O’Brien is an employee-owned engineering firm dedicated to enhancing the built environment while prioritizing sustainability, team growth, and impactful client solutions.

Irvine, California

Engineering Services
1,001–5,000 people

About

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.

Open positions

Design Project Manager – Data Centre Projects

Remote · Canada

Lead the planning and execution of multidisciplinary design projects for mission-critical data centers across North America. Manage the full design lifecycle from proposal through construction documentation, ensuring projects are delivered on schedule and within budget.

Mechanical Engineer Intern (Fall 2026)

On-site · Toronto

The intern will gain practical experience and expand their skills by contributing to impactful projects. They will work within a supportive environment to learn from industry experts in the AEC industry.

Intermediate Project Associate

Hybrid · Vancouver

The role involves conducting field investigations and preparing detailed building condition assessments and reserve fund reports. It also requires developing contract documents and managing projects from inception to completion, including construction administration and client liaison.

Plumbing Fire Protection Project Engineer

Remote · ["Toronto, Ontario, Canada"]

At Salas O’Brien we tell our clients that we’re engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That’s why we’re committed to living our values every day: inspiring, achieving, and connecting as shared owners of our success with a focus on a sustainable future. Building for the long-term means that all of our team members can expect to work on amazing projects with a people-first approach to problem solving. It also means that each member of our team has truly limitless potential to build a unique, meaningful, and high-…

Senior Acoustics Consultant

Remote · Toronto, Ontario, Canada

Serve as acoustics lead or Project Manager on a variety of acoustics and multi-disciplinary projects. Assist, support, and mentor other acoustics team members while leading projects in Canada.

Coordonnateur.trice administratif.ve - Administrative Coordinator

On-site · Montréal

The Administrative Coordinator ensures the smooth operation of the Montreal office by managing facilities, vendor relationships, and providing administrative support. This role also involves organizing office events and supporting employee onboarding and offboarding processes.

Project Manager – Structural Engineer

Hybrid · Ottawa

The Project Manager – Structural Engineer will manage projects from initial stage to completion, overseeing structural designs and project management tasks. Responsibilities include preparing cost estimates, specifications, and ensuring customer satisfaction while managing deliverables, quality, schedule, and budget.

Structural Engineer/Designer

On-site · Toronto

The Structural Engineer/Designer will design new building structures and alterations to existing buildings while providing technical expertise. Responsibilities include project coordination with consultants and collaboration with colleagues to assemble tender documents.

Building Science Project Manager

Hybrid · Toronto

The Building Science Project Manager will lead building envelope restoration projects and conduct building condition assessments. Responsibilities include preparing reports, developing cost estimates, and overseeing construction reviews to ensure compliance and quality.