John Suffolk, the government's former chief information officer, has been appointed global security officer at telecoms firm Huawei.
Suffolk, who argued the government could radically cut IT costs by slashing datacentres, making more use of cloud computing, and improving procurement. The government's current chief information officer is Joe Harley, former CIO at the Department for Work and Pensions.
At Huawei, Suffolk will develop and manage a global cyber security assurance strategy and related systems, which will be adopted across all departments including research and development, supply chain, marketing and sales, project delivery and technical service. His office will be at Huawei's headquarters in Shenzhen, China.
Huawei provides telecoms and security services to businesses and governments around the world.
Earlier in his career, Suffolk was an adviser to the World Bank High-Level Experts group, advising governments on how IT can help transform the public sector and generate economic growth. He was also director general of the Criminal Justice Transformation Programme.
Ken Hu, deputy chairman at Huawei, said Suffolk has "a wealth of experience and expertise in dealing with cyber security issues with deep insights into emerging global cyber security trends".