Scheidler was born in 1960. She earned a
diplom (the German equivalent of a combined bachelor's and master's degree) in mathematics at the
University of Cologne in 1987. She first came to Canada for doctoral study in mathematics at the
University of Manitoba, where she completed her Ph.D. in 1993. Her dissertation,
Applications of Algebraic Number Theory to Cryptography, was supervised by
Hugh C. Williams. She joined the mathematics faculty at the
University of Delaware in 1993, adding a courtesy appointment in the university's Department of Computer & Information Sciences in 1995. She was promoted to associate professor there in 1999. In 2001 she moved to her present position, jointly appointed to the Department of Mathematics & Statistics and the Department of Computer Science at the
University of Calgary; she has been a full professor since 2008. In 2022 she was
Helene Lange Visiting Professor at the
University of Oldenburg in Germany. In 2008, with
Kristin Lauter and
Rachel Justine Pries, she became one of the founders of the Women in Numbers conference, which became the first of a series of conferences for the Women in Number Theory research community. She has been co-editor-in-chief of
Contributions to Discrete Mathematics since 2023. ==Recognition==