Big Data (Hadoop, Spark, PySpark) Data Engineering ETL/ELT pipelines SQL / PostgreSQL / Oracle MLOps (Docker, Git, FastAPI, Flask) Machine Learning (PyTorch, TensorFlow, Scikit-learn) Transformers, RAG, CNN, GANs LangChain OCR Power BI / Tableau Agile Scrum Shell scripting API development Data Warehousing Leadership technique