Kalle Leinonen

Kalle Leinonen is an experienced IT and systems architect with a career spanning several decades in various roles across multiple companies. Currently serving as a Tietojärjestelmäarkkitehti at Suomen tulli – Finnish Customs since March 2020, Kalle previously worked as an Enterprise Architect for Kallioinen Yhtiöt Oy and Kesko, where responsibilities included developing IT architecture for food and grocery sectors, managing architecture for POS environments, and overseeing HR architecture initiatives. Earlier experience includes roles as an IT Architect at Ruokakesko Oy, Senior Architect at Nokia, where Kalle contributed to significant projects such as the R/3 implementation and financial reporting systems, and as an Enterpreneur at A.D.B Cons Ky providing consultancy and IT environment management. Educational background includes studies at Suomen Liikemiesten Kauppaopisto and Ristimäen lukio.