Program committee member for GD 2018, CCCG 2018, WALCOM 2019.

Program committee (past): WALCOM 2018, ICCG 2018.

Served as a reviewer at Mathematical Reviews, American Mathematical Society, (2012 - Present).

Served as an external reviewer for the following international conferences:

Symposium on Graph Drawing (GD)

Symposium on Algorithms and Computation (ISAAC)

Workshop on Combinatorial Algorithms (IWOCA)

Symposium on Theoretical Informatics (LATIN)

Theory and Practice of Comp. Sci. (SOFSEM)

Symposium on Theoretical Aspects of Comp. Sci. (STACS)

Symposium and Workshops on Algorithm Theory (SWAT)

Symposium on Algorithms and Data Structures (WADS)

Workshop on Algorithms and Computation (WALCOM)

Graph-Theoretic Concepts in Computer Science (WG)

Served as an external reviewer for the following international journals:

Algorithmica

Computational Geometry: Theory and Applications.

Discrete Mathematics

Discrete Mathematics, Algorithms and Applications

Information Processing Letters

Journal of Discrete Algorithms

Journal of Computer and System Sciences

Journal of Graph Algorithms and Applications

Journal of Combinatorial Optimization

Served as a member of the Graduate Studies Committee, Department of
Computer Science, University of Manitoba (2014-2015).