Former University Librarian of the Helsinki University Library (retired in 2013). In 2007 she completed her doctorate at the University of Helsinki on the change in the worldview of university library staff during the Information Age, 1970-2005.

From 2002 to 2009 she worked as the Coordinating Director of the library sector at the University of Helsinki. In 2010 the new Helsinki University Library was founded, and all existing campus libraries were merged into one organisation; Dr Sinikara was its first director.

Her other experiences include working as a Library Director and a library specialist, participating in academic administration and research projects, and teaching as a part-time lecturer at the University of Helsinki. She has collaborated with national and European library networks and has led several projects, including a development project for an African (Namibian) university library in

She has published approximately 30 scientific and 100 professional articles. She is currently writing a history of the Helsinki University Library Network from 1850 to 2010. She was awarded the honorary title of professor by the President of Finland in 2013.

For a list of writings, see https://tuhat.