Ahmad
Rahimian

Director of Building Structures (USA) United States

Dr. Ahmad Rahimian is the Director of Building Structures for the USA region, based in our New York office, and an internationally recognized expert in tall buildings.


Ahmad has over 30 years of experience delivering some of the world’s most iconic and award-winning building structures ranging from high-rise commercial and residential towers to stadia and transportation facilities. The projects he has engineered include: One World Trade Center - the tallest building in the western hemisphere; The Shard - the tallest building in Europe; Trump World Tower, which, in its day was the tallest and most slender residential tower in the world; Lord Norman Foster’s Hearst Tower with its striking diagrid geometry; the Christian de Portzamparc’s One 57 tower - currently the tallest residential building in New York City; and Torre Mayor - the tallest building in Latin America for which he holds a patent on the innovative seismic design used.

Ahmad is the recipient of numerous awards for various exemplary projects that he has designed including the 2007 AISC Special Achievement Award, 2005 ASCE-CERF Charles Pankow Award for innovation and the ENR Excellence Award as one of the Top 25 Newsmakers of 2003.  

Ahmad has a Ph.D. from Polytechnic University and is a registered Professional Engineer in several states, as well as a registered Structural Engineer in California. He has shared his knowledge with the engineering industry, authoring many technical articles for numerous professional publications in the USA and world-wide and is also a much sought-after guest lecturer delivering numerous lectures regarding his innovative work.