Team Bios

Yussef Elsirgany

Chief Technology Officer

Yussef has over 20 years of experience as an entrepreneur and software engineer with a proven track record of building multi-tenant scalable native web applications.

Prior to joining Street Diligence, Yussef was CTO and Chief Architect of Valiant for over 10 years.

As Chief Technology Officer, Yussef was responsible for the entire R&D Product Group which includes; Product Management, Software Engineering, Quality Assurance, Systems Engineering and Technical Support.

Proven fundraising skills working with CEO, Investment Bankers and Private Equity firms.  Executed two successful exits to PE firms including a $56M exit.

Before Valiant in 2010, Yussef was the Chief Executive Officer of NY Business Link, a NYC software development firm, providing solutions to mid-market clients. During his tenure there, Yussef produced a series of Social Media applications for large marketing & political campaign firms, including applications for Facebook, LinkedIn and other social media platforms.

Yussef developed a dynamic, multi-tenant social media platform which was used in various marketing campaigns for clients like Nike, Baskin Robbins, political candidates for Governor, State Senate, County governments, local candidates and political action groups.

Yussef is a graduate from CW Post, Long Island University with a Bachelor of Science in Computer Science and a minor in Math.