Senior Software Engineer

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Nexxen is seeking a Senior Software Engineer to design and build core components of its Demand Side Platform (DSP) for real-time programmatic advertising. The role involves developing high-throughput, low-latency distributed systems processing billions of bid requests daily with sub-100ms latency. Responsibilities include building and optimizing real-time bidding services, architecting microservices and event-driven systems, integrating with external SSPs and ad servers using OpenRTB and VAST, developing APIs for partner integrations, troubleshooting performance, implementing caching with Redis and MongoDB, monitoring system performance, collaborating with cross-functional teams, providing technical leadership, mentoring junior engineers, and maintaining scalable backend services. Required qualifications include 5+ years of experience in large-scale distributed systems, strong programming skills in Java or Scala, familiarity with programmatic advertising ecosystems, RTB protocols, distributed systems concepts, streaming technologies like Kafka or Kinesis, containerization with Docker and Kubernetes, SQL and NoSQL databases, microservices, REST/gRPC APIs, debugging, CI/CD pipelines, Linux environment, and strong communication and problem-solving skills. The position is full-time, based in New York or Baltimore offices, with a hybrid work schedule (3 days in office). Salary range in New York is $170,000 - $200,000. Benefits include medical, dental, vision, disability insurance, 401(k), EAP, parental leave, discretionary time off, and company-paid holidays.