Risto is a veteran of the Estonian Defence Forces, who has dedicated 30 years to service, the last 10 of which as Chief of Armament at the Defence Forces Headquarters. His responsibilities included the planning, development, procurement negotiations and implementation, as well as advising in matters related to armament and munitions. Risto has extensive experience in cooperation with NATO and EU armament working groups.

Risto is the Sales manager of Armament at Conmeo.