Python, Sql, Hadoop, Dimensional Modeling, Kafka, Pandas, Hive, Numpy, Spark SQL, Spark, LlamaIndex, LoRA fine-tuning, Enterprise Agents, Flink, Zero-shot inference, Data warehouse development, Flink SQL, LangChain, Indicator system design, Prompt engineering, Intelligent chatbots, Layered modeling, RAG systems, AutoGen, Dify, Document Q&A systems, EDW enterprise data warehouse architecture