Rosen made a name for himself as CEO of Africa Israel USA, a holding company controlled by Russian oligarch Lev Leviev. He held that job from 2005 to 2009, when he was named CEO of the Sapir Organization, working closely with Alex Sapir, then president of the family firm.
Shortly after Tamir Sapir died in 2014, Rosen and Alex Sapir went on to purchase ASRR Capital, a publicly-traded Israeli company with developments in Miami and New York.
Last year, Rosen and Alex Sapir split — with Sapir buying out Rosen’s stake in ASRR for $70 million.
Last year, Rosen co-founded MRR Development with billionaire industrialist Anand Mahindra and Jerry Rotonda, former CFO of Deutsche Bank of the Americas. Rosen subsequently bought out Rotonda’s stake and recently tapped Danny Avidan — ASRR’s former CEO — as CFO of MRR, according to filings on the Tel Aviv Stock Exchange.