He joined the Civil Service just over 20 years ago, working in economic analysis and policy advice roles in HM Treasury and HM Revenue & Customs.
Ymunodd â’r Gwasanaeth Sifil ychydig dros 20 mlynedd yn ôl i weithio mewn rolau dadansoddi economaidd a chyngori polisi yn Nhrysorlys EF a Chyllid a Thollau EF.