Cassandra DBA / Engineer – Key Requirements Database Architecture
• Design and manage highly available, scalable Cassandra clusters.
• Solid understanding of Cassandra architecture, replication, consistency levels, partitioning, data modeling, and multi-DC deployments.
• Capacity planning and cluster topology design. Cassandra Performance Tuning
• Analyze and optimize read/write performance and latency.
• Tune compaction, caching, consistency levels, tombstones, SSTables, and Cassandra configuration.
• Identify hot partitions, slow queries, and resource bottlenecks. Node Expansion & Cluster Management
• Add, replace, remove, and decommission Cassandra nodes safely.
• Perform cluster expansion and capacity upgrades with minimal production impact.
• Manage token distribution, bootstrap/streaming, repair, cleanup, and cluster rebalancing. Backup & Recovery
• Implement and maintain Cassandra backup and restore strategies.
• Perform snapshots,



incremental backups, and point-in-time recovery where supported by the backup solution.
• Conduct recovery testing and support disaster-recovery procedures. JVM & System Tuning
• Tune Cassandra JVM heap, garbage collection, and memory settings.
• Troubleshoot GC pauses, heap pressure, CPU, disk I/O, and memory issues.
• Tune Linux/OS and storage configurations for Cassandra workloads. Monitoring & Troubleshooting
• Monitor cluster health, availability, latency, throughput, disk usage, compactions, dropped messages, GC, and repairs.
• Troubleshoot production issues including node failures, high latency, timeouts, replica inconsistencies, and capacity problems.
• Strong experience with nodetool, Cassandra logs, metrics, tracing, and monitoring/alerting platforms.

📌 Cassandra DBA (Bengaluru)
🏢 Zensar Technologies
📍 Bengaluru