I have 5+ years of strong experience across Big Data, cloud, and backend systems, including IAM concepts (authentication vs authorization, privilege lifecycle, segregation of duties). My technical background includes Python, Java, SQL; Big Data technologies such as Spark, Kafka, Hadoop, and Airflow, Pyspark; cloud platforms including GCP (BigQuery, Dataflow, Dataproc, Cloud Storage, Pub/Sub, Composer) and AWS (Hive); SQL and NoSQL databases (BigQuery, PostgreSQL, MySQL, Oracle, Couchbase); DevOps tools (Docker, Git, CI/CD, Terraform); and ETL/ELT, batch and streaming data processing, and data modeling.