Senior Software Engineer, Core Data Resilience

Within Core Data, the Resilience team ensures that the services stay healthy, performant, and fault-tolerant - especially under load. We're looking for a Senior Software Engineer to join this Resilience team and help drive system improvements that protect Core Data's MySQL, Memcached, and Redis-based data tier and evolve how services like Credence (Core Data's interface layer) scale and self-heal. Collaborating with teams across Core Data and across the organization, you will help build resilient features, automate failure handling, and define best practices around some of our hardest load and resilience-related challenges. How We Learned to Stop Worrying and Read from Replicas [medium.com] Cache is the Root of All Evil [medium.com] Bachelor's degree in Computer Science, Mathematics, or a related field 4+ years of professional software development experience Proficient in common algorithms, data structures, and code design principles Experience developing high-scale distributed systems Familiarity with MySQL internals a huge plus. Experience working with JVM-based services like Scala Passionate about solving scale and performance challenges Strong sense of ownership, persistence, and drive Excellent communication skills Build and own scalable infrastructure to help database service and its interface layer remain performant and available under heavy traffic and edge conditions Contribute to the design and implementation of new infrastructure components, and help uplift existing systems to meet evolving business needs. Improve system resilience by identifying bottlenecks, designing fallback strategies, and evolving load-routing logic Provide input into the broader Core Data's technical direction through collaboration and execution. Work in Scala and Python, with a strong focus on services that interact with our MySQL tier Participate in the on-call rotation and take ownership during incidents related to database load, unavailability, or general SLO breaches.