Prior to joining Arent Fox, Gene was a partner at a leading New Jersey law firm, where he served as co-chair of the construction practice group focusing on litigation within that group.

Gene's representative matters include defending the city of New York against claims within construction exceeding $1 billion, which arose from the collapse of Seven World Trade Center on September 11, 2001. He advised one of the largest mall developers and operators in the Northeast in construction and design defects litigation against the design-build contractor and its structural engineer for the project, and he defended a leading architectural firm in a suit related to stadium design delay claims. Gene also represented a leading training company in the prosecution of claims for copyright, trademark infringement, and unfair competition in Japan (through Supreme Court appeals). He has represented numerous publishers and authors with respect to their first amendment rights.

In a case pending before it, the US Court of Appeals for the Second Circuit appointed Gene to defend a decision by the District Court that granted public access to sealed court documents, despite a settlement agreement between the parties providing that the documents were to remain confidential and under seal.