
Cassandra Database Admin
3 weeks ago
Casandra Database Administrator
Experience: 7 years
Technical Skills:
• Strong experience with Apache Cassandra (Open Source, DataStax, Scylla DB).
• Deep understanding of Cassandra architecture, partitions, replication, and consistency levels.
• Proficiency in CQL (Cassandra Query Language) and data modelling.
• Hands-on experience with Linux (Ubuntu, RHEL, CentOS).
• Familiarity with Cassandra monitoring tools (DataStax OpsCenter, Prometheus, Grafana).
• Experience with cloud-managed Cassandra services (AWS Key spaces, Azure Cosmos DB, Google Cloud Bigtable).
Job Description:
• Install, configure, and upgrade Apache Cassandra (Open Source, DataStax, Scylla DB).
• Monitor cluster health, node status, and replication factors.
• Ensure high availability (HA) and disaster recovery strategies are in place.
• Optimize Cassandra data models, partitions, and compaction strategies.
• Tune garbage collection (GC), JVM heap settings, and read/write performance.
• Analyse slow queries using Cassandra Query Language (CQL) tracing.
• Implement authentication (LDAP, Kerberos) and role-based access control (RBAC).
• Secure Cassandra deployments with TLS/SSL encryption and firewall rules.
• Ensure compliance with GDPR, HIPAA, and PCI-DSS standards.
• Develop and manage backup and restore strategies using node tool snapshots.
• Test disaster recovery and failover strategies regularly.
• Automate Cassandra administration tasks using Bash, Python, or Ansible.
• Set up monitoring tools (Prometheus, Grafana, ELK Stack, DataStax OpsCenter).
• Implement alerting for node failures, disk usage, and read/write latency.
• Identify and resolve replication lag, tombstone accumulation, and query timeouts.
• Work with DevOps and application teams to troubleshoot performance issues.
• Maintain detailed documentation of troubleshooting procedures.
• Monitor storage, memory, and CPU usage to plan for capacity scaling.
• Optimize replication strategies for read/write scalability.
• Implement multi-datacenter replication for disaster recovery and load balancing.
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