Foo joined the
Singapore Legal Service in 1984 and served in a variety of legal and judicial posts during that time, including as a
Magistrate and District Judge in the then-
Subordinate Courts, and as an Assistant Registrar and Deputy Registrar in the
Supreme Court of Singapore. In 2009, he was appointed Registrar of the
Supreme Court. In his time as Registrar, Foo assisted the Courts with the implementation of the “docket system” of case management and end-to-end e-Litigation systems and also was the “driving force that helped to demystify the judiciary and (make) the courts more accessible to the general public”. Foo has also previously spoken out about burn-out in the legal profession, given the real pressures of legal careers. Foo was subsequently appointed as a
Judicial Commissioner by
President Tony Tan in April 2015. He served a three-year term during which time he also oversaw the development of the Singapore Judicial College, serving as its founding Dean, and in which capacity, he was tasked to "oversee the development of a new college for the training of judges". Upon his appointment as a Judicial Commissioner, he was replaced as the Registrar of the Supreme Court by Vincent Hoong. He was also, during his time as Judicial Commissioner, Editor-in-Chief of Singapore Civil Procedure. Foo retired from his position as Dean of the Singapore Judicial College in April 2023. == Academic career ==