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MBA Consulting Services, Inc. (MBA CSi) is seeking an experienced Senior Oracle Database Administrator (Oracle DBA) to support the United States Postal Service (USPS) Engineering organization in Merrifield, VA. In this role, you will be responsible for designing, securing, optimizing, and maintaining enterprise Oracle database environments that support mission-critical applications and services used across one of the nation's largest organizations. Working alongside software developers, system administrators, and engineering teams, you'll play a key role in ensuring the reliability, performance, and security of USPS database infrastructure. This position offers the opportunity to work with enterprise-scale Oracle technologies, including Oracle 19c, RAC, Data Guard, RMAN, and advanced performance tuning, while supporting complex federal technology initiatives. This is an outstanding opportunity for an experienced Oracle DBA seeking to contribute to high-impact federal programs while expanding their expertise in enterprise database architecture, performance optimization, and mission-critical infrastructure. The position is located onsite at the USPS Engineering Headquarters in Merrifield, VA. Responsibilities Design, implement, and maintain secure, scalable Oracle 19c database environments. Develop logical and physical database architectures that maximize performance, scalability, and maintainability. Create and optimize database schemas, tables, indexes, partitions, and storage strategies. Install, configure, patch, upgrade, and administer Oracle Database 19c environments. Design, implement, and support Oracle RAC, Data Guard, and RMAN backup and recovery solutions. Analyze database performance and implement tuning strategies for high-volume enterprise applications. Monitor database health, capacity, and system performance while recommending infrastructure improvements. Troubleshoot database, application, and infrastructure issues in collaboration with development and system administration teams. Support data migration, ETL/data loading, import/export, and data transformation activities. Analyze SQL execution plans and optimize complex queries for maximum performance. Serve as the Oracle database subject matter expert throughout the software development lifecycle. Document database configurations, standards, and best practices to support operational excellence.