--- title: "Hammad Tariq (@hamad-tariq) | Hashnode" description: "ETL pipelines, cloud warehouses, self-hosted AI, and analytics-ready architectures. Read the latest articles by Hammad Tariq on Hashnode." url: "https://hashnode.com/@hamad-tariq" --- @hamad-tariq # Hammad Tariq @hamad-tariq · Islamabad, Pakistan · Joined June 2026 ETL pipelines, cloud warehouses, self-hosted AI, and analytics-ready architectures ### [AWS Athena Query Optimization: Scan Less and Cut Your Bill](https://thehammadtariq.hashnode.dev/aws-athena-query-optimization-scan-less-and-cut-your-bill?utm_source=hashnode&utm_medium=feed) Athena charges you for the data each query reads. Almost every speed and cost win is the same move: read less. 3 min read · [thehammadtariq.hashnode.dev](https://thehammadtariq.hashnode.dev/aws-athena-query-optimization-scan-less-and-cut-your-bill?utm_source=hashnode&utm_medium=feed) [Jul 1](https://hashnode.com/posts/aws-athena-query-optimization-scan-less-and-cut-your-bill/6a456b94e1a4091222a41382) ### [AWS Glue Cost Optimization: The 8 Traps That Inflate Your Bill](https://thehammadtariq.hashnode.dev/aws-glue-cost-optimization-the-8-traps-that-inflate-your-bill?utm_source=hashnode&utm_medium=feed) Glue bill shock is almost never a pricing problem. It's a defaults problem. Here's where the money leaks. 3 min read · [thehammadtariq.hashnode.dev](https://thehammadtariq.hashnode.dev/aws-glue-cost-optimization-the-8-traps-that-inflate-your-bill?utm_source=hashnode&utm_medium=feed) [Jun 23](https://hashnode.com/posts/aws-glue-cost-optimization-the-8-traps-that-inflate-your-bill/6a39dfcb14207a7e785dc4c2) ### [Data Warehouse Migration Guide 2026: Snowflake vs Redshift vs Big Query vs Databricks](https://thehammadtariq.hashnode.dev/data-warehouse-migration-guide-2026-snowflake-vs-redshift-vs-big-query-vs-databricks?utm_source=hashnode&utm_medium=feed) The strategic way to choose between Snowflake, Redshift, Big Query and Databricks and what the move actually costs. 3 min read · [thehammadtariq.hashnode.dev](https://thehammadtariq.hashnode.dev/data-warehouse-migration-guide-2026-snowflake-vs-redshift-vs-big-query-vs-databricks?utm_source=hashnode&utm_medium=feed) [Jun 20](https://hashnode.com/posts/data-warehouse-migration-guide-2026-snowflake-vs-redshift-vs-big-query-vs-databricks/6a36ce611b65ca376673d61b) ### [Dagster vs Airflow vs Prefect: How I Actually Choose an ETL Tool in 2026](https://thehammadtariq.hashnode.dev/dagster-vs-airflow-vs-prefect-how-i-actually-choose-an-etl-tool-in-2026?utm_source=hashnode&utm_medium=feed) The no-fluff way to choose between Dagster, Airflow and Prefect the best ETL orchestration tool depends on one decision 5 min read · [thehammadtariq.hashnode.dev](https://thehammadtariq.hashnode.dev/dagster-vs-airflow-vs-prefect-how-i-actually-choose-an-etl-tool-in-2026?utm_source=hashnode&utm_medium=feed) [Jun 12](https://hashnode.com/posts/dagster-vs-airflow-vs-prefect-how-i-actually-choose-an-etl-tool-in-2026/6a2b90504953c597b7ab9fad)