Experience designing and implementing at least two of: ETL, orchestration, CI/CD pipelines; Data lakes, data warehouses; Analytics and visualization Experience with at least two of: Hadoop, Spark, EMR; Streaming/Messaging (Kafka, RabbitMQ, Kinesis); NoSQL (document, graph, or key-value stores); Caching (Redis, memcache); Search (Elasticsearch, Solr) Experience with at least one of: Legacy data modernization; Cloud security and governance Familiarity with IaC tools and AWS data services (Glue, Lambda)