James Ellis Colliander is an American-Canadian mathematician. He is currently Professor of Mathematics at the University of British Columbia and serves as Director of the Pacific Institute for the Mathematical Sciences (PIMS). PIMS is a consortium serving ten universities, with a mission to advance discovery, understanding and awareness of the mathematical sciences. Colliander is also the Founder/CEO of an education technology company called Crowdmark which builds tools for teachers and students including an online collaborative grading and analytics platform. James is also an award-winning teacher.