Senior Software Engineer, Sportsbook Platform

The Senior Software Engineer, Sportsbook Platform role at PENN Entertainment focuses on designing, scaling, and tuning APIs and real-time delivery systems that power theScore Bet, Hollywood Casino, and theScore Casino. The position involves building and operating high-throughput services, collaborating with mobile teams, and leveraging AI coding agents to develop features across iOS, Android, and web platforms. The engineer will own features end-to-end, from API design to client-side implementation, while ensuring performance, reliability, and scalability. This role requires a strong foundation in backend systems, API versioning, and real-time feature development, with a focus on outcomes and measurable goals.