For over thirty-five years, Sassan has specialized in geotechnical, civil, and structural engineering, specifically known as the foremost expert on landslide prevention/repair and slope stability in Los Angeles county and neighboring regions. With projects ranging from small residential to large commercial endeavors and a deep background in foundation design, field planning, subsurface exploration, data analysis, and preparation of technical reports, Sassan takes pride in delivering top quality work for his clients at a competitive price. In addition to his engineering work, Sassan is one of the most sought-after expert witnesses in his field.

Sassan completed coursework for his Ph.D. in Geotechnical Engineering from the Univeristy of Rhode Island in 1984. He received his M.S. in Structural Engineering from Syracuse University in 1981 and prior to that received his B.S. in Civil Engineering from Tehran University in 1979. He is a registered Geotechnical and Civil Engineer in the state of California as well as a registered Grading Deputy Inspector in the City of Los Angeles. He is a proud member of the California Geotechnical Engineers Association, American Society of Civil Engineers, American Association for the Advancement of Science, International Society of Soil Mechanics and Foundation Engineers, and Structural Engineers Association of Southern California.