Role Description: Administer, monitor, maintain, and support Cassandra DB, Cosmos DB, and other NoSQL database platforms. Manage database performance, tuning, backup, recovery, replication, and high availability configurations. Troubleshoot and resolve complex database issues across production and non-production environments. Support large-scale, mission-critical enterprise applications and infrastructure environments. Perform database installations, upgrades, patching, and capacity planning activities. Work closely with application, infrastructure, and cloud teams to ensure seamless database operations. Participate in incident management, problem management, change management, and root cause analysis activities in alignment with ITIL processes. Develop and maintain operational documentation and standard operating procedures. Ensure database security, compliance, and operational best practices are followed. Essential Skills: Strong hands-on experience with Cassandra DB, Cosmo...