Leon Shklar had been a part time lecturer in the computer science department at Rutgers University, where he taught a senior level course in advanced web application development.
He is also the co-author (with Rich Rosen) of the popular textbook Web Application Architecture: Principles, Protocols, and Practices.
Shklar was one of the people at Bell Communications Research responsible for InfoHarness, one of the earliest (1995) metadata-driven web application systems.
He also led the team that developed Metaphoria, one of the first commercially available Java-based server-side web frameworks.
Shklar has served on the Advisory Committee of the World Wide Web Consortium (W3C) and was actively involved in the development of the RDF standard.