Guardian Yoki Sanjaya has been working in Faculty of Medicine, Universitas Gadjah Mada since 2010 focusing on health informatics. He has medical background and having professional education on health informatics. He got Master of Health Informatics degree from University of Wollongong Australia and continuing his doctoral degree in Biomedical and Health Informatics domain. Guardian has joined several health information systems development projects.

During in Health Management Information Systems (SIMKES), Guardian have been contributing to the improvement of health informatics curriculum through a formal and non-formal education program that SIMKES’s offered. Many SIMKES partners have been also working with Guardian as their consultant. With Ministry of Health, Guardian working on health data dictionary, reviewing the National eHealth Strategic Planning, recommending drug and medical supply standard for logistic management information systems and development master health facility list which is supported by WHO. Recently Guardian involves in DHIS2 capacity building in Indonesia.