In this position, he will be responsible for finance, treasury, corporate ICT, risk management, procurement as well as communications and investor relations.

Heinonen holds a MSc. (Econ.) degree from the Turku School of Economics.

Heinonen will join Tieto from Finnair Plc where he has worked since 2004, first as CFO of the company. In the CFO position, he has been responsible for finance, controlling, treasury, procurement, IT & investor relations. Since 2009, Heinonen has served as Finnair's Deputy CEO as well as Executive Vice President with responsibility for Cargo business and Aviation Services, which include the Group's technical operations, ground handling and catering services.

Before joining Finnair, Heinonen worked in CFO and supply chain management roles in the pharmaceutical industry (i.e. Novartis and Sandoz) in Switzerland, Turkey and Finland.

Hannu Syrjälä, Tieto's President & CEO comments: "Lasse has a strong track record of financial management, line management experience and business growth. As we continue our transformation, I am confident he has the right skills and experience to leverage Tieto's transformation and enhance shareholder value."

"I am excited to join Tieto, learn about and contribute to very fast changing business. I am looking forward to being able to convert my leadership experience and knowledge as an IT services customer to Tieto's benefit," says Lasse Heinonen.

Tieto's CFO Seppo Haapalainen will continue in his current position until the transfer to new CFO is completed. He will also continue as a member of Tieto Leadership team, and his return back to a business role will be announced later.