5+ years of experience building highly scalable consumer-facing applications; Strong proficiency in Python, with experience in Tornado, Django (DRF), and AsyncIO; Experience architecting, designing, and developing fault-tolerant, scalable, and performant software; Expertise in distributed systems composed of multiple networked components; Hands-on experience with AWS or similar cloud-based platforms; Strong understanding of automated testing for backend services; Solid knowledge of data structures, algorithms, and system resource modeling as load scales; Experience developing high-availability distributed systems (99.99% uptime); Strong background in observability, including logging, monitoring, and alerting; Experience with Cassandra or similar NoSQL databases; Hands-on experience with Docker and containerization technologies; Experience with CI/CD tools such as Gradle, Jenkins, Spinnaker or similar; Ability to self-manage, prioritize tasks, and work collaboratively across teams to drive results; English proficiency at B2 or higher for effective communication with global teams;