His research focus includes number theory, combinatorics, symbolic computation, and probability. He is mainly interested in using symbolic computation and experimental mathematics to study topics in analytic number theory and combinatorics.

He has published papers in leading academic journals including the Journal of Number Theory and the Journal of Symbolic Computation.

Jiu has a B.Sc. and a M.Sc. from the Beijing Institute of Technology and a Ph.D. from Tulane University, New Orleans. He served as a postdoc consecutively at the Research Institute for Symbolic Computation, Johannes Kepler University, Austria; Johann Radon Institute for Computational and Applied Mathematics, Austrian Academy of Science, Austria; and Dalhousie University, Canada.