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Role : Data Modeler Location: Reston, VA - Candidate need to go onsite once in a month. Job Description : 9+ years of hands-on relational, dimensional, and/or analytic experience (using RDBMS, dimensional, NoSQL data platform technologies, and ETL and data ingestion protocols). Experience with data warehouse, data lake, and enterprise big data platforms in multi-data-center contexts required. Good knowledge of metadata management, data modeling, and related tools (Erwin or ER Studio or others) required. Experience of 2 to 3 years doing data analysis and data testing Good working knowledge of SQL Good data analysis skills to query, map and document source to target mappings, understand data schemas and modeling Good communication and documentation skills