2005-2019 member of the management board of Estonian Taxpayers Association
Since 2001 Member of the International Fiscal Association (IFA)
Since 2000 Member of the Society of Tax Scientists
2013 – 2017 Law Firm Lentsius & CASUS, Tax expert
2011 - 2013 member of the Estonian Auditors' Association exam committee
2007 - 2013 director of Law Firm CASUS
2006 - 2007 IMG Konsultant AS, Head of Tax
2001 - 2006 University of Tartu, lecturer
1999 - 2006 Law Firm Raudjärv & Ko, lawyer