Marko is the director of Twitter University, where he manages the training of Twitter Engineers in Android and other open source technologies. Previously he was cofounder of Marakana (acquired by Twitter), a firm that trained thousands of Android developers at Intel, Cisco, Qualcomm, Motorola, the Department of Defense, and other institutions. Marko is also the creator of Android Bootcamp course and cofounder of San Francisco Android Users' Group.
