Groupon is building up its executive team by hiring four tech executives from Amazon and other e commerce companies. Robbie Schwietzer will be senior vice president of operations. Earlier he was a Vice president of Amazon’s Prime service which offers free shipping and other benefits to customers. Although Groupon did not performed well in the market after its IPO, the company’s shares hit 52 week high of $12.64 last week. Groupon shares are right now trading at 12.16 with a 3.4% rise in the price.