Mae’r Gymraeg wedi bod yn ganolog i yrfa Efa fel Prif Weithredwr y Ganolfan Dysgu Cymraeg Genedlaethol ers 2016, a chyn hynny, bu’n Brif Weithredwr yr Urdd am 11 mlynedd.  Bydd hi’n dod i’r swydd felly gyda blynyddoedd o brofiad o weithio er budd y Gymraeg ac o weithio gyda siaradwyr Cymraeg a dysgwyr led led Cymru.
The Welsh language has been central to Efa's career as Chief Executive of the National Centre for Learning Welsh since 2016, and before that, she was Chief Executive of the Urdd for 11 years.  She will therefore come to the post with years of experience of working for the benefit of the Welsh language and of working with Welsh speakers and learners throughout Wales.