Executive Mosaic is honored to announce , vice president of Microsoft’s U.S. public sector, as the newest inductee into the Wash 100, the premier group of leaders who create value for the American public and execute strategic vision at the intersection of the public and private sectors.

Kolcun is a more-than-20-year Microsoft veteran and took on his current role in 2008, around five years after he assumed responsibility for Microsoft’s U.S. federal business.

A former airman in the U.S. Air Force, Kolcun joined Microsoft in 1989 as a senior architectural engineer became the firm’s first systems engineer assigned to work on the U.S. Department of Defense account, and helped propel Microsoft’s early work in security, encryption and standards.

He would rise to Federal Practice Manager for Microsoft Consulting Services.

In his current role, one of Kolcun’s major focuses is on cloud computing and increasing government’s use of Office 365.

“Organizations are achieving significant cost savings through the cloud delivery model while gaining access to the latest collaboration tools, without sacrificing on security or privacy,” Kolcun said at a Microsoft CIO summit in 2013, according to GCN.

In 2013, Microsoft rolled out a public cloud environment exclusively for use by government agencies and its Azure U.S. Government Cloud received FedRAMP Joint Authorization Board Provisional Authority to Operate.

That certified Microsoft’s Infrastructure-as-a-Service and Platform-as-a-Service meets security standards necessary for use by government agencies.

Kolcun noted that more than one million U.S. public sector employees use Office 365 and the Army plans to use its October 2013 of 50,000 Office 365 licenses for use by all Defense Department components to build on DoD’s transition to a cloud-based email system and to combine both commercial and government cloud services.

Kolcun said its important to avoid offering a “one-size-fits-all” cloud solution and to enable agencies to obtain the tools most pertinent to their mission.

“All DoD services, agencies and mission partners will be able to use an on premises, cloud or hybrid solution to best meet their needs,” Kolcun wrote about the Army purchase.