I coordinate the admissions process for the undergraduate Maths course at Oxford, and I'm responsible for making sure the MAT is set and marked. In a previous life, I was a research mathematician, working on solutions for coalescence problems in fluid dynamics. These days, I spend most of my time promoting Mathematics to anyone who will listen. I organise the Mathematics content for the UNIQ summer schools, and I travel around the country to give maths talks to schools and for the Oxford and Cambridge Student Conferences. If you come to Oxford for an open day or one of our other outreach events then there's a good chance I'll tell you about triangles, chaos theory, admissions, vectors, or counting while you're here.