Graduated from the Faculty of Medicine of the University of Tartu, specialising in paediatrics, with additional specialisations in allergology and paediatric pulmonology. Participated in training courses and conferences in the field of paediatrics, allergology and pulmonology at the Turku University Central Hospital, the University of Helsinki Dermatology and Allergy Clinic in Finland, Karolinska University Central Hospital and Huddinge Hospital in Sweden.

He has participated in various training courses and conferences organised by the European Association of Allergy and Clinical Immunology (EAACI), the European Respiratory Society (ERS) and the American Thoracic Society (ATS), as well as in continuing education in general pediatrics at the Moscow Medical Advanced Institute and in continuing education in paediatric pulmonology in Minsk.

Dr. Putnik has participated in the development of professional guidelines in Estonia, published several articles and lectured at continuing medical education courses.

Dr Putnik is a member of the European Association of Allergology and Clinical Immunology (EAACI), a member of the Estonian Paediatric Society (ELS), a member of the Estonian Society of Immunology and Allergology (EIAS) and a member of the Estonian Medical Association.