Innovative C++ Developer Susquehanna International Group LLP (SIG) is a technology-driven quantitative trading company located minutes from Center City Philadelphia. We are a place where smart, analytical, like-minded people come together to leverage rational thought in the financial markets. Our people make SIG one of the most successful proprietary trading firms in the world - and we’re growing. If you find yourself solving online coding challenges or learning new technologies just because, check out our opportunities online at www.sig.com/careeropps.aspx.