Sigma Systems, a Toronto company that offers advanced IP services, announced Wednesday that it has promoted Pankaj Gogia to the position of vice president of strategy. Gogia has 14 years of experience in the operational support system industry. Operational support systems are the back-end software that manage services between customers and their carriers. Two of Sigma Systems’ main clients are Rogers Communications Inc. and Telus Corp. Gogia will head Sigma Systems’ market development and merger and acquisition strategies. Prior to the promotion, Gogia served as Sigma Systems’ director of sales operations and strategies. He has worked closely with the company’s executive team and will continue to do so in his role to develop new growth opportunities in regional markets, a release said.