Cassandra Database Administrator

Responsibilities:

Cassandra Database Administration:

• Design, configure, and maintain Cassandra clusters deployed
• Install, configure, and manage multi-node Cassandra clusters both on-premise and cloud, both public and internal
• Perform database backups, recovery, and restoration activities.
• Manage database schemas, tables, indexes, and user permissions.
• Diagnose and troubleshoot production incidents and resolve performance bottlenecks, including slow queries and resource utilization issues.
• Optimize database configurations, query performance, and data modeling for improved efficiency and scalability.
• Execute repairs in case of data inconsistency and perform JVM tuning and garbage collection optimization.
• Estimate storage requirements and collaborate with infrastructure teams to ensure adequate resources are provisioned.
• Regularly review and update security configurations to address emerging threats and vulnerabilities.
• Set up database monitoring tools to proactively identify performance issues, errors, and anomalies.
• Respond to database alerts and take appropriate actions to resolve issues.

PostgreSQL Database Administration:

• Collaborate with teams to integrate PostgreSQL databases into the infrastructure and ensure their optimal performance.
• Perform PostgreSQL database backups, recovery, and restoration activities.
• Optimize PostgreSQL configurations and query performance for transactional workloads.
• Design and implement PostgreSQL data models and SQL scripts for transactional workloads.
• Manage PostgreSQL databases in GCP environments (preferred).
• Diagnose and troubleshoot PostgreSQL production incidents and resolve performance bottlenecks.

Requirements:

Cassandra:

• 5+ years of experience in Cassandra database administration.
• Expertise in installing, configuring, and monitoring Cassandra clusters.
• Experience in creating column families, bootstrapping, decommissioning, removing, replacing, and repairing nodes.
• Proficiency in creating keyspaces, tables, and secondary indexes in Cassandra.
• Strong experience in performance tuning Apache Cassandra clusters to optimize writes and reads.
• Hands-on experience with Cassandra data modeling and CQL scripting.
• Proven ability to evaluate database performance, isolate bottlenecks, and implement optimizations in transactional settings.
• Experience in managing and monitoring 24x7 production database environments.

PostgreSQL:

• 5+ years of experience in PostgreSQL database administration.
• Expertise in installing, configuring, and monitoring PostgreSQL databases.
• Proficiency in PostgreSQL data modeling and SQL scripting.
• Strong experience in performance tuning PostgreSQL databases to optimize writes and reads.
• Hands-on experience with PostgreSQL in GCP environments (preferred).
• Proven ability to evaluate database performance, isolate bottlenecks, and implement optimizations in transactional settings.