Microsoft said Stone -- formerly Director of Enterprise Technologies at the company -- would be working with Microsoft Australia's commercial and public sector customers to "establish technology strategy, including architectural guidance, policy and industry standard compliance".
Preceding his enterprise technology role, Stone "established the first .NET architecture practice" for Microsoft Australia, the company said, touting it as a "globally recognised achievement".
Stone's supervisor, Kevin Ackhurst, said the appointment represents a "significant step in Microsoft Australia's connected government strategy".
"The formation of Greg's new role demonstrates Microsoft Australia's ongoing commitment to continuous evolution to meet the needs of our customers," he said.
"In his new role, Mr Stone will work closely with customers to identify and establish value added programs which help government collaborate across industry."
Stone joined Microsoft in 2001 leaving a position of general manager for e-business architecture at an international office supplies company.