Exp	Worked on Regence BCBS EHR data migration and warehousing, gathered requirements, worked with stakeholders to define key performance indicators (KPIs), created requirements specification and documents, worked on SLA and validated data warehouse requirements against it, identified various source data, data structure, current system architecture and data model, prepared data warehouse plan and delivery approach, identified stakeholders, expertise and involvement, worked with data modelers, created data warehouse model, explained requirements traceability between source and target tables, data analysis, data quality, data mapping, used ETL tool informatica, data extraction, SQL queries, data cleansing and transformation, data load, meta data creation and repository, data marts creation as per requirements, data history and back up, user roles and security, implementation and support