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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

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.