Complex sentence: Prior to that, he worked in the World Bank for nearly 25 years on a range of development issues, managing its programmes in Viet Nam, Turkey, Macedonia, Indonesia and the Pacific, and worked in the research department on public finance and public economics.
Split into simpler sentences: Prior to that, he worked at The World Bank for nearly 25 years on a range of development issues, managing its programmes in Viet Nam, Turkey, Macedonia, Indonesia and the Pacific. He also worked in the research department on public finance and public economics.