Hi, I’m Praful, a Data Engineer with ~3 years of hands-on experience building scalable data pipelines and analytics systems across large-scale enterprise environments. I currently work at dunnhumby, where I help design and optimize data platforms that power data-driven decision making. Previously, I worked with Mercedes-Benz R&D India, handling multi-terabyte datasets, cloud migrations, and performance-critical ETL pipelines. My core expertise lies in Python, SQL, Apache Spark, Airflow, Databricks, Snowflake, GCP and Azure, with strong experience in batch processing, data modeling, and pipeline optimization. I enjoy breaking down complex data engineering concepts into simple, practical explanations. On Topmate, I love helping aspiring and early-career data engineers with interview preparation, system design thinking, SQL/Spark optimization, cloud fundamentals, and career guidance. If you’re transitioning into data engineering or aiming for top product-based companies, I’d be happy to support you on your journey.