Exedia Group has named Derek Andersen as its new chief financial officer, succeeding Scott Schenkel who is stepping down after more than two years in the role. Andersen, who previously served as CFO at Snap and Amazon’s vice president of finance, will replace Schenke. Peter Hamilton has also left Roku, where he served as head of ad innovation for over four years. Ann Johnson is leaving Microsoft after over a decade to become executive VP of Security (Identity & Fraud) Services at Mastercard. After over 20 years with Amazon, Vidya Shastri has left the company as a director of software development and is taking a career break. Judd Lee is now CFO for Safe Software, a data software company in Surrey, B.C., and Vanessa Ribreau has been named chief people officer by Safe Software. Other notable tech moves include the resignation of former Starbucks CEO Howard Schultz and the departure of former CEO of Tune.