The Deputy Parliamentary Ombudsman is Mikko Sarja, a Licentiate of Laws, and a Deputy Judge.
Sarja stepped into his position as Deputy Parliamentary Ombudsman on 1 June 2023.
 
Before this, Sarja acted as the substitute Deputy Parliamentary Ombudsman in 2017–2023 and served as Principal Legal Adviser as of 2016.
Sarja has worked at the office of the Parliamentary Ombudsman since 2003. Before that, Sarja served as a presenting official at the Office of the Chancellor of Justice and conducted research at the University of Lapland.

Sarja has written and participated in the writing of several publications, the key themes of which have been regional policy legislation, the independence of financial audits, the use of state ownership, information security, public guardianship and guardianship services as well as topics related to the Ombudsman's competence and oversight of legality.

Curriculum vitae