Heins spent 23 years working at Siemens. He served in several positions related to wireless technology including the chief technology officer of Siemens' communications division and several general management roles in hardware and software.
BlackBerry
Heins joined Research In Motion in 2007. He rose through the ranks starting as senior vice president of BlackBerry's handheld unit; chief operating officer for product engineering, and finally chief operating officer for product and sales in July 2011. In January 2012, Heins was named to succeed co-founders Jim Balsillie and Mike Lazaridis as president and CEO. During his time as CEO, the company continued to struggle in a rapidly changing market. Heins was responsible for BlackBerry's development of the BlackBerry 10 line of consumer and enterprise devices. In 2012, Heins was named Cantech Letter's 2012 TSX Executive of the Year and ranked a year later as third on a list ofthe worst CEOs of 2013. Heins was replaced by John Chen, a veteran Silicon Valley executive, during a November 2013 management shakeup and left the company with a $13.8 million severance. Prem Watsa, the board member who recruited John Chen said, "Thorsten did a very good job given the hand that he was dealt, but resigned because you can’t have two people being in charge. He said to me, ‘It’s very appropriate for me to resign. I like John Chen, but I’m a CEO and there is one person in charge.’"
Powermat
After leaving BlackBerry in 2013, Heins went on to become the chairman and CEO of Powermat Technologies. During Heins' tenure Powermat secured an agreement from Samsung to incorporate its wireless charging technology into future smartphones. Heins found himself in the middle of a battle between two factions on Powermat's board. Since October 2015, he and some board members were the target of a lawsuit by other Powermat board members led by founder Ran Poliakane for allegedly running the company without an approved budget. Investors like Goldman Sachs and Hudson Clean Energy backed Heins. Heins and other board members, constituting a majority of the directors, countersued. Heins resigned from Powermat in July 2016. Heins' resignation helped settle the lawsuits just mentioned and allowed for new investment from several important shareholders. Heins had earlier threatened to leave due to what he called a hostile work environment.
Public service
As of 2012, Heins served on the board of the German Canadian Chamber of Industry and Commerce in Toronto. As of 2016, Heins serves on the University of Waterloo's board of governors.