The Government Technology Agency (GovTech) has announced on Monday (9 April) that Mr Kok Ping Soon, 48, who is the deputy secretary of development at the Ministry of Manpower (MOM), will replace Ms Jacqueline Poh, 43.
Ms Poh's next appointment will be announced later.
Mr Kok oversees national policies and programmes related to workplace safety and health, human capital development, SGSecure for workplaces, as well as digitalisation initiatives in his current role.
Previously, he was a senior director at the National Security Coordination Centre, which is within the National Security Coordination Secretariat in the Prime Minister's Office.
He has also held various positions in the Ministry of Trade and Industry, MOM, Singapore Tourism Board and Economic Development Board.
In its statement, GovTech stated that Ms Poh set "the strategic direction for GovTech as the implementing agency of the Smart Nation Strategic National Projects".
"She was also instrumental in rebuilding the Government's capabilities in information and communications technology and smart systems, data science and artificial intelligence, cyber security, application design and development, and the Internet of Things," it added.
Ms Poh was managing director of the then-Info-communications Development Authority from 2013 to 2016 before it was restructured, which led GovTech to set up the Government Digital Services at Hive.
It went on to develop digital products for citizens, which included the OneService app, Parking.sg mobile application and the National Trade Platform.
Ng Chee Khern GovTech chairman thanked Ms Poh for transforming GovTech into an organisation that is bold and prepared to take risks in getting things done, saying, "Under Jacqueline's leadership, GovTech has been able to deliver innovative and imaginative solutions that have taken Singapore forward in its journey to becoming a technology-enabled society."
He also welcomed Mr Kok, "who will build on the strong foundation laid by Jacqueline".