The Senior Scala Engineer will be responsible for designing, developing, and deploying backend services with a focus on high availability, quality, low latency, and scalability. They will measure and evaluate features and system metrics to continuously improve user experience and service performance. The ideal candidate should be proactive and possess excellent communication skills. They should find it fun and inspiring to build integration solutions and backend software. The role involves working on a complex product and collaborating across teams, from high-level architecture design down to efficient code implementation. The candidate is expected to have a good understanding of system design, data structures, and algorithms.