In 38 years of professional activity, Dr. Rosignoli has worked in 22 countries on 4 continents on the design, design review & optimization, construction, and forensic engineering of complex bridges and bridge construction machines. His assignments include 9 arch bridges, 1 portal bridge, 24 launched bridges, 11 balanced cantilever bridges, 4.9km of spans cast in-place with MSS, 24.8km of precast high-speed-railway spans, 72.8km of precast segmental bridges; as well as 2 self-launching gantries, 6 MSS, 2 span carriers with underbridge, the construction systems of 23 launched bridges, and some form travelers. His assignments also include 12 cable-stayed and 3 extradosed bridges – Design Leader of the Gerald Desmond Bridge (USA) and the Tappan Zee Bridge (USA); Design Review Leader of the Port Mann Bridge (Canada); Construction Technical Director of the Milan Palizzi Bridge (Italy), the Wadi-Kouf Bridge (Libya), and the Corpus Christi Harbor Bridge (USA); Subject-Matter Expert on the Indian River Bridge (USA), the Atlantic Bridge (Panama), the Saint Croix River Bridge (USA), and the Gerald Desmond Bridge (USA). He has provided subject-matter expert services to U.S. Departments of Transportation, design firms, bridge constructors, insurance carriers, and law firms. Among many high visibility assignments of forensic bridge engineering, he has assisted the law firms representing the victims of the FIU Bridge collapse in Miami, FL. International expert of mechanized bridge construction and the incremental launching method, Dr. Rosignoli has written 4 bridge engineering books published worldwide, 16 e-books, Chapter 6.37.40 in the UNESCO Encyclopedia of Life Support Systems, 3 book chapters, 90 publications, and thousands of articles, posts, comments and interviews on social media. He also teaches 5 courses (1 and 2 days) of modern bridge design and construction technology for the ASCE and on-demand in the offices of bridge owners, designers and constructors.