Nortel Networks has chosen former Cisco chief science officer as its new CTO.

Gary Kunis will take over from Brian McFadden next Monday. McFadden will become Nortel's chief research officer after less than a year in the CTO position. Both McFadden and Kunis will report to Nortel's president and chief operating officer, Gary Daichendt.

As chief research officer, McFadden, a Nortel veteran of 26 years, will run the company's research efforts, while Kunis will set the "strategic vision" for the company's products and technologies, Nortel said in a statement.

"We’re thrilled to have Gary join our team. He’s an acknowledged Internet pioneer with a solid record of accomplishment and I know he will provide an outstanding contribution to Nortel's technology leadership," said Gary Daichendt. "His track record in leading the building, servicing and selling of network technologies globally will be a strong addition. He’s an excellent senior leader who throughout his career has consistently demonstrated his ability to link technology innovation with business success both internally and externally."

A Cisco employee until 2002, Kunis was responsible for a number of "development and engineering breakthroughs" related to networking technology, said a Nortel spokeswoman. Since 2002, Kunis has served as an advisor to a number of technology companies and has been a private investor in the biotechnology sector.