• I joined HUT as the acting professor on Telecommunications Technology in 1996.
• Was nominated a full professor by the University board in May 2001 for 5 year period 9/2001...8/2006. In 2006 I became a tenure professor at TKK.
• I have taught four M.Sc level courses of which two and a half courses I created myself. Run Ph.D courses on Networking Technology.
• Initiated a Studia Generalia on Telecommunications at HUT in 1997, now renamed Internet Forum
• Active in the degree programme structural development activity at the Department of Electrical and Communications Engineering.
• Director and Initiator of the International Masters Programme in Telecommunications from 1999. Master's Programme in Communications Engineering from 2005.
  
• Director of International Study Affairs at ECE (2001-2010), since then in Aalto School of Electrical Engineering
• Member of  ECE Department Council (2001 - 2004)
  
• Head of the Laboratory of Telecommunications Technology for 1998 and the year 2000, again 8/2002 - 12/2003 and 2005. The lab renamed to Networking Laboratory in 2001
  
• Chairman of Department of Communications and Networking from 1/2008 to 12/2010.
• Research in the areas of Traffic Classification in the Internet, IP switching technology, IP Voice systems, Signaling, Peer-to-Peer networks, QoS routing in the Internet, the Future Internet, trust management, cooperative security, policy management and Software Defined Networking.
• Leader of the TEKES funded Spear Head project on Intelligent Routing Network.
• Leader of the EU funded MobileMan HUT subproject on Service Discovery in Ad Hoc Networks and ETNA on Ethernet Transport Networks.
• Supervised about 300 Master's theses from 1997 at TKK and Aalto.
  
• Supervised ca 15 Licentiate theses at TKK (till 2008).
• Supervised 9 Doctoral theses at TKK and Aalto.

Current Research

• Cooperative security for the Internet, trust management, software defined networking, policy management of communications.

• Worked in Nokia Telecommunications from 1980 till 1996, starting as a software engineer for the DX 200 switching system and finishing as head of research for the DX 200 switching system platform.
• Held positions included R&D manager, Department Manager in R&D, Head of switching product marketing in UK (two years) and member of TINA core-team at Bellcore.
• Member of the Supervisory Council in Sonera Corporation from 1998 till 2001.
• Senior Technical Advisor to the Board of CSC Tieteellinen Laskenta Oy (2/2002 -  2006 ), the company running the Finnish Supercomputing Centre and the Finnish University Network (FUNET).
• Columnist to CSC News (Tieteen tietotekniikka in Finnish) from 2007.

Education:

• Doctor of Technology (Computer Science) at HUT in 1995.
• M.Sc in applied mathematics and computer science at the Leningrad Electrotechnical University in 1981.
• A certified interpreter (Finnish - Russian - Finnish, 1981).