He has also held software technology positions in the United States and abroad with the Federal Aviation Administration, Motorola, and Logica.

In 2010, Hadley sought the Democratic Party's nomination for Senate in Georgia, losing to Labor Commissioner Mike Thurmond.

[7] In 2008, he was chosen by the Obama campaign to serve as an At-Large delegate at the Democratic National Convention in Denver.

[8] In 2009, Hadley announced his campaign to seek the Democratic Party of Georgia's nomination for United States Senate to replace Johnny Isakson, a Republican.

For nearly a year he ran unopposed until Labor Commissioner Michael Thurmond entered the race in the last week of qualifying.