Since 2011, his writing has appeared online for publications such as Fast Company, Next City, and NextBillion, covering economic development, public policy, philanthropy, crowdfunding, financial transparency, financial inclusion, impact investing, fair trade and more. Oscar's coverage is informed by his prior work as an online media specialist in global development, where he worked with some of the largest and most respected nonprofit organizations in the world (BRAC, Population Services International) as well as smaller organizations with a more niche, expert audience (Center for International Private Enterprise, Results for Development, UN Dispatch, DAWNS Digest).