Required Qualifications 10+ years of software engineering experience in large-scale systemsExpert proficiency in Java with strong knowledge of concurrency and multithreadingDeep experience building distributed, highly available systems Hands-on experience with Apache Kafka (topics, partitions, offsets, schema evolution, exactly-once semantics)Experience with Big Data technologies :Spark (batch & structured streaming)Hadoop ecosystem (HDFS, Hive, YARN)Flink or equivalent stream-processing enginesStrong experience with microservices , REST/gRPC APIsProficiency with SQL and NoSQL databases (MySQL, PostgreSQL, Cassandra, MongoDB, etc.)Strong system design, troubleshooting, and performance-optimization skills. Preferred Qualifications Marketplace, e-commerce, payments, or supply-chain platform experienceCloud-native development on AWS, GCP, or Azure Experience with Kubernetes, Docker , and service meshExperience handling millions of sellers, SKUs, and transactions Familiarity with ML platforms , feature stores, or real-time inferenceExperience with observability tools (Prometheus, Grafana, ELK, OpenTelemetry)Strong understanding of security, data governance, and compliance .