Several top technology, media, and telecom investment bankers from Barclays have resigned to join UBS Group AG in the United States, according to sources familiar with the matter. This comes after UBS announced the hiring of three Barclays US investment bankers last month, indicating the bank's efforts to strengthen its US talent pool. UBS is set to inherit Credit Suisse Group's investment banking group following a Swiss government-orchestrated takeover in March, and plans to retain only a small number of Credit Suisse senior bankers with strong client relationships. The sources requested anonymity to discuss confidential personnel matters, and both Barclays and UBS declined to comment.