He was an attaché to the trade minister from August 1995 to July 1998, responsible for investment and bilateral relations with North America and Asia.
[2] On 1 August 2007, he assumed the role of Deputy Permanent Representative of Belgium to the EU, succeeding Louis Mouraux.
According to The Guardian, he has been "credited with negotiating a breakthrough on the European patent system, an issue that had been deadlocked for more than 30 years.
"[3] In June 2011, Dirk Wouters was appointed as the Permanent Representative of Belgium to the EU, replacing de Ruyt.
As Belgian custom did not allow both roles in the representation to be held by Flemings, Seeuws was appointed as a special counsellor to Herman Van Rompuy, the President of the European Council.