Dr Teh retired from GIC at the end of June 2011 and stayed on as Adviser for two years. Before his retirement, he was President of GIC Special Investments from April 1999 to June 2011. Prior to this, he was concurrently Deputy Managing Director of Monetary Authority of Singapore (MAS) and Deputy Managing Director of GIC. He began his career with the World Bank under the Young Professionals Program in Washington D.C. in 1975.
Since his retirement, Dr Teh had been Chairman of Ascendas Pte Ltd and a board member of Overseas Chinese Banking Corporation, SembCorp Industries and Taikang Life Insurance Co, Ltd, and an Adviser to China International Capital Corporation. He had also served on the boards of the National University of Singapore, the Lee Kuan Yew School of Public Policy, and the Urban Redevelopment Authority, Dr Teh obtained First Class Honours in Economics at La Trobe University, Melbourne, and a Doctorate in Economics at Nuffield College, Oxford University, England. He attended the Advanced Management Program at the Harvard Business School in the fall of 1989.
Teh 博士于 2011 年 6 月底自新加坡政府投资公司（GIC）退休，并于退休后继续担任公司顾问两年。在退休前，他自 1999 年 4 月起担任 GIC 特别投资部总裁，至 2011 年 6 月。在此之前，他曾同时担任新加坡金融管理局（MAS）副总裁和 GIC 副总裁。
他于 1975 年开启职业生涯，作为“青年专业人员计划”成员加入世界银行（位于华盛顿特区）。
退休后，Teh 博士曾出任 Ascendas董事长，并曾是华侨银行（OCBC）、胜科工业（SembCorp Industries）和泰康人寿保险股份有限公司（Taikang Life Insurance Co., Ltd）的董事会成员，亦曾担任中国国际金融有限公司（CICC）顾问。此外，他还曾在新加坡国立大学、李光耀公共政策学院以及新加坡市区重建局（URA）等机构担任董事职务。
他曾在澳大利亚墨尔本的La Trobe 大学取得经济学一等荣誉学位，并在英国牛津大学获得经济学博士学位。1989 年秋季，曾赴哈佛商学院参加高级管理课程。