Role: Data Engineer Location: McLean VA- Onsite Key ResponsibilitiesDesign and develop scalable data pipelines using PythonBuild and maintain ETL/ELT processes for financial dataWork with datasets such as:TransactionsPaymentsAccounts / ledgersRisk & compliance dataDevelop and optimize data warehouses / data lakesEnsure data accuracy, integrity, and security (critical for financial systems)Implement data validation and reconciliation processesCollaborate with:Finance teamsRisk & compliance team