Stephen is an angel investor in over 50 companies and a Venture Partner at Trammell Venture Partners. He previously served on the board of Code to Inspire, a non-profit advancing education for women in Afghanistan, where his role centered around bitcoin as a technology to protect human rights. Prior to full-time investing, Stephen led engineering teams in Silicon Valley at large enterprises and small startups including eBay, Intel, Cloudscaling, and Nervana.