Rahiyah spent over 20 years in the financial sector, mainly as a corporate banker with one of the largest banks in Asia, CIMB Bank and a further 13 years as a Principal Officer of one of the largest Asian Asset Managers, PNB (UK) Ltd in London. During this time, she was also the Chairperson and independent trustee of the Malaysian Rubber Research Centre pension fund in Brickendonbury, in the UK, trustee for CIMB (previously Bumiputra-Commerce Bank) London branch staff pension fund, director of CIMB London branch Nominee company and director of CIMB GK Goh Ltd, the UK stock broking arm of CIMB group. She is currently a Director of Dricopax Capital Ltd and a trustee for PAWA.