Not many people can say they've made partner at Goldman Sachs. Even fewer can say they did it at the age of 31. Kunal Shah can say both. Shah joined Goldman Sachs as an analyst in the firm's trading business in 2004 and rose to partner in about a decade. Last January, he was promoted to two new roles: co-CEO of Goldman Sachs International and global co-head of fixed income, currencies, and commodities. Based in London, he also holds a seat on the bank's overarching management committee. As part