As the Data Governance Programme Lead, Kuldar is responsible for public sector data availability and reusability. Key topics within the Data Governance Programme include the development of a national data quality framework, the establishment of data description and publication practices, development of national data portals and secure data processing environments, the implementation of the once-only principle and the availability of good quality data for data economy and AI needs. While managing the overall programme, Kuldar is also actively providing consulting to individual sectorial data-related projects.

Kuldar is actively promoting communication and knowledge sharing among data professionals by managing the Estonian government CDO network, organising lectures and events on data governance and reuse, and being a founding member of the national Data Wisdom Network which brings together experts from both the public and private sector.

Prior to joining the Government CIO Office in February 2022, Kuldar was active in the field of digital preservation, where he set up and served for ten years as the technical coordinator for the eArchiving Building Block, an EU-wide initiative which aimed to provide interoperability for long-term reuse of data.