Linnar is an information technology entrepeneur and IT visionary who has been deeply involved in the push for the digitalisation of Estonia, with a leading role for government and public services, since 1998. He co-founded the e-Governance Academy, Mobi Solutions, and has been and still is a lecturer at several academic institutes. Viik holds several international advisory functions, including a chairing of the board on EIT Digital and AS Eesti Loto. He has written over 120 articles and 10 reports, mostly on the topics of Knowledge Based Economy and Implications of Information Society.