[5][6] She completed two degrees: Harvard University, A.B., cum laude, History[7] – 2003;[6] Fletcher School of Law and Diplomacy, M.A.
[10] She worked for the Congressional Quarterly from 2008 to 2009,[citation needed] then at the United Nations, co-authoring reports on peacekeeping operations, disaster relief and emerging democracies, before she committed to her journalistic career.
As the Las Vegas Sun's only Washington correspondent, she reported on the White House, the federal courts, and Senate Majority Leader Harry Reid and the Nevada congressional delegation through two election cycles, and on national debates about energy, the economy, housing, defense, and immigration.
[12] In 2014 and for a year, Karoun Demirjian joined The Washington Post's bureau as a correspondent in Moscow, Russia while also working for NPR as a freelance reporter.
[citation needed] Since 2015, she has been a freelance reporter covering defense and foreign policy for The Washington Post.