Previously, he served as the assistant chief of staff for strategic deterrence and nuclear integration, Headquarters U. S. Air Force.

[2] The AFNWC is responsible for the entire scope of U.S. Air Force nuclear weapons support functions and in addition to its headquarters at Kirtland, comprises several other units in the U.S and abroad.

This included managing B-2 flying assets worth over $46 billion, and an annual operations and maintenance budget of $147 million.

He has also served as Deputy Director of Requirements, Headquarters, Air Combat Command, Langley AFB, Virginia.

Harencak grew up in the New Jersey town of Elmwood Park, where he was known then[4] and now for his high quality ("Jay Leno funny") sense of humor, as was expressed emphatically by NNSA (National Nuclear Security Administration) administrator Thomas D'Agostino at Harencak's Gold Medal Awards Ceremony in 2011.