Nicolas Fillion is associate professor of philosophy at Simon Fraser University. His main research contributions have so far been to philosophy of science and applied mathematics, but his research and teaching also include the history of science & mathematics, formal logic, decision and game theory, critical thinking, and epistemology broadly construed. As part of an effort to promote and spread critical thinking skills, he has in the last few years been developing a teaching curriculum on the epistemology of conspiracy theories. He is the co-author of the textbook "A Graduate Introduction to Numerical Methods", which made the Notable Books list of the ACM Computing Reviews, and was awarded a price for his essay "Demystifying the Applicability of Mathematics" by the Foundational Questions Institute. He was also recipient of SFU's Cormack award for excellence in teaching.

Over the years, he has served on the board of the Canadian Philosophical Association and on the program committee of the American Philosophical Association. He is currently the vice-president of the Canadian Society for the History and Philosophy of Science, and the chair of the board of Ethics Bowl Canada.