Olwen has nearly fifteen years’ experience as a headteacher. Since September 2012 she has been head of the Ceiriog Valley Federation of Ysgol Llanarmon Dyffryn Ceiriog, Ysgol Cynddelw and Ysgol Pontfadog in Wrexham County. In 2019, Ysgol Pontfadog closed.

Olwen is a Peer inspector with Estyn. Olwen has had experience of assessing NPQH candidates in the past but now enjoys training candidates across the North Wales area. Olwen has recently been invited to become a facilitator on a prospective headteachers course.