Our mechanical, electrical, plumbing, fire protection, controls, telecommunications, and security building system designs keep many of the world's top Fortune 100 financial, technology, enterprise, hyperscale, and colocation companies up and running 24 hours a day, 365 days a year. As a Lead Mechanical Engineer with us, you will design complex cooling and HVAC systems, including air distribution systems, chiller plants, and alternative energy solutions while leading projects and a team of mechanical engineers.