Sebastian has worked for Al Jazeera English in the United States since 2008. First based at Al Jazeera English's main US bureau, in Washington, DC and now in Al Jazeera America's San Francisco Fault Lines show hub, he is a presenter on Fault Lines, the channel's flagship-show about the Americas, and reports from across the continent.
Before joining Fault Lines, Sebastian was a foreign correspondent,with a particular interest in Haiti. Al Jazeera English was the only international TV news network to maintain a bureau in Haiti after the 2010 earthquake and Sebastian arrived in Port-au-Prince less than 24 hours after the earthquake hit to report on the damage. He then stayed on for a year and a half to document the progress of the relief effort.
Prior to being based in the Americas, Sebastian worked in the Middle East. He served at the channel's main broadcast-centre, in Doha in Qatar, where he helped to launch the channel.