We are seeking an experienced Database Administrator (DBA) to manage, optimize, secure, and maintain enterprise-grade relational and spatial database environments. The ideal candidate will have strong expertise in PostgreSQL/PostGIS, Oracle, SQL Server, MySQL, or MongoDB, with extensive experience supporting mission-critical, high-availability databases on both on-premises and cloud platforms. Essential Experience: • Minimum 08 years of experience in database administration, performance tuning, and data security management • Proven experience in PostgreSQL/PostGIS, Oracle, or SQL Server administrationin production environments • Experience in backup, recovery, replication, and clustering for mission-critical databases. • Familiarity with spatial databases and GIS data management. • Experience managing cloud-based databases (AWS RDS, Azure SQL, • Google Cloud SQL). • Exposure to database scripting, automation, and DevOps workflows. • Prior work in government or large-scale data environments involving multi-terabyte databases. • Familiarity with data privacy, cybersecurity, and audit compliance frameworks. • Relevant certifications must. Roles and Responsibilities: • Install, configure, and maintain RDBMS and spatial databases such as PostgreSQL/PostGIS, Oracle, SQL Server, MySQL, or MongoDB. • Set up replication, clustering, partitioning, and high availability (HA) environments. • Apply patches, version upgrades, and manage database migrations with minimal downtime. • Manage database instances on on-premise servers and cloud environments (AWS, Azure, GCP). • Monitor database performance and optimize queries, indexes, caching, and memory usage. • Analyze query execution plans and recommend structural and indexing improvements. • Perform regular database health checks, performance audits, and capacity planning. • Work with application developers and GIS teams to tune SQL queries and spatial operations for faster response times • Implement access control mechanisms, role-based privileges, and data encryption policies • Establish and manage data backup, recovery, and replication strategies (e.g., pgBackRest, RMAN, Data Guard). • Ensure disaster recovery and business continuity planning (BCP) for all mission-critical data systems. • Perform regular restore drills and maintain detailed documentation of recovery procedures. • Ensure data consistency, normalization, and compliance with organizational standards. • Maintain metadata, logs, and audit trails for all databases. • Implement and enforce data governance frameworks and database policies (naming conventions, indexing, archival). • Manage schema design, table structures constraints, and relationships for both transactional and analytical systems. • Administer spatial databases (PostGIS, Oracle Spatial) and manage vector, raster, and topology datasets. • Support geospatial web services (WMS/WFS/WCS) through integration with GeoServer, MapServer, or ArcGIS Server. • Optimize spatial queries, geometry indexing (GiST, QuadTree), and raster handling for GIS applications. • Ensure interoperability between GIS and non-GIS databases through OGC-compliant standards. • Deploy, monitor, and maintain cloud-hosted database instances (AWS RDS, Azure SQL, Google Cloud SQL). • Work with DevOps teams to implement CI/CD pipelines, automated provisioning, and infrastructure-as-code (IaC) for database environments.