A day in the life of a Nasdaq exec whose job is to make sure the software systems that power over 120 markets stay up and running

· Business Insider got a look inside the whirlwind day of Nasdaq's senior vice president and head of global technology infrastructure and operations.
· Don Beery, a veteran engineer who has been with Nasdaq for the past 11 years, is not only in charge of roughly 344 employees; he's also a father of three and opened up about...