He attended Harvard University with co-founder Mark Zuckerberg and others on the founding team. He worked at Facebook from February 2004 to September 2007. Initially, he worked on Wirehog, a file sharing program, together with Adam D'Angelo. McCollum returned to Harvard College, and graduated in 2007 with a Bachelor's degree in Computer Science. He later earned a master's degree in education from the Harvard Graduate School of Education.
