We are seeking a hands-on Database Administrator to execute and validate the migration of Oracle, Microsoft SQL Server, and PostgreSQL databases supporting COTS applications from on-premises environments to Azure. Supporting the Migration Planning, Migration Execution, and Application Operations workstreams, the successful candidate brings deep expertise in one primary platform (Oracle, SQL Server, or PostgreSQL) and will ensure data integrity, optimize performance, and resolve connectivity issues before, during, and after each migration wave.

Key Responsibilities:

• Assess on-premises databases supporting in-scope applications, capturing versions, sizes, extensions, dependencies, shared-database relationships, and performance baselines.
• Plan and execute lift-and-shift migrations to approved Azure targets (e.g., Oracle on Azure VMs; SQL Server on Azure VMs or Azure SQL Managed Instance; Azure Database for PostgreSQL Flexible Server) using native and Azure migration tooling.
• Use platform-appropriate migration methods, such as RMAN, Data Pump, and Data Guard (Oracle); Azure Database Migration Service, backup/restore, and log shipping (SQL Server); and pg_dump/pg_restore and logical replication (PostgreSQL).
• Validate data integrity after migration through row counts, checksums, and application-level reconciliation.
• Tune database performance on Azure, including storage, memory, indexing, configuration, and query optimization, and compare results against pre-migration baselines.
• Resolve database connectivity issues, including listeners/TNS, linked servers, pg_hba, authentication, service accounts, SSL, and network configuration.
• Implement backup, recovery, and high-availability configurations (e.g., Data Guard, Always On availability groups, Flexible Server HA) that meet application RTO/RPO requirements.
• Apply database security controls and patching consistent with DoD STIG and Client policies.
• Support cutover and rollback activities and provide database support during hypercare and steady-state operations.
• Automate routine database tasks using PL/SQL, T-SQL, PL/pgSQL, PowerShell, Bash, or Python.

Required Qualifications:

• 2+ years of experience performing Database Administration supporting at least two of the following databases: Oracle, SQL Server, or PostgreSQL.
• Experience migrating Databases to either a Cloud Platform (Azure preferred; AWS/GCP accepted) or another Database
• Working knowledge of Database security best practices, backup/recovery strategies, and high-availability/disaster recovery solutions.
• Active Secret clearance required.
• Must be local to St. Louis, MO, OR be willing to travel to St. Louis.

Preferred Qualifications:

• Platform certification (e.g., Oracle Certified Professional, Microsoft Certified: Azure Database Administrator Associate, PostgreSQL certification) and/or Azure cloud certification.
• Experience with Oracle RAC/GoldenGate, SSIS/SSRS migrations, or PgBouncer/PostGIS.
• Familiarity with Infrastructure as Code (Bicep or Terraform).
• Experience with Azure Monitor and database insights for monitoring.