data engineering , ELT, Spark, Databricks, Data Governance, Etl, Big Data Architecture, Data Lakes, Data Pipelines, Flink, Lineage, Data Contracts, GraphRAG, Vector Database, metadata, RAG, Lakehouses, Ontology, Knowledge Graphs

data engineering , semantic modeling , Orchestration, ELT, Performance Tuning, Data Governance, Spark, Databricks, Etl, Reliability Engineering, Data Pipelines, Cost-aware Pipeline Design, Flink, GraphRAG, Metadata-driven Architectures, Compliance Controls, Observability, Big Data Architecture, Data Lakes, Lineage, Data Contracts, RAG, Ontology Design, Lakehouses, AI-serving layers, Knowledge Graphs