Cassandra Admin

Flexon Technologies Talent360.ai; San Jose (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

The Cassandra / DataStax L3 DBA at Flexon Technologies Talent360.ai will administer Apache Cassandra and DataStax Enterprise clusters running on Linux. Responsibilities include installation, configuration, upgrades, patching, node addition and removal, cluster and data-center expansion, backup and restore, repair, replication, and data-center expansion.

Strong Linux administration and shell scripting skills are essential.

Qualifications

• Experience administering Cassandra and DataStax Enterprise clusters on Linux.
• Ability to perform installation, upgrades, patching, and node management.
• Familiarity with backup/restore, repair, replication, and data-center expansion.

Responsibilities

• Administer Cassandra/DataStax clusters, monitor and tune performance.
• Handle installation, configuration, upgrades, patching, and scale-out tasks.
• Support Spark and Graph workloads; manage repair, compaction, and I/O issues.
• Utilize OpsCenter for monitoring and administration; prepare for PST hours.

Skills

Cassandra

DataStax Enterprise

Linux

Shell scripting

Spark

Graph workloads

Redis Stack

Kubernetes-based DB administration

PostgreSQL

MongoDB

MySQL

MS SQL Server

Tools

OpsCenter

Job description

The Cassandra / DataStax L3 DBA will administer Apache Cassandra and DataStax Enterprise clusters running on Linux.

Responsibilities include installation, configuration, upgrades, patching, node addition and removal, cluster and data-center expansion, backup and restore, repair, replication, and compaction.

The role requires deep knowledge of Cassandra architecture, replication factors, consistency levels, partitioning, and token/ring management, as well as performance troubleshooting for CPU, memory, disk I/O, garbage collection, latency, tombstones, SSTables, and compaction issues.

The DBA will use DataStax OpsCenter for monitoring, alerting, and administration and will support Spark and Graph workloads.

Strong Linux administration and shell scripting skills are essential. Preferred secondary experience includes Redis Stack administration, Kubernetes-based database administration, and working knowledge of PostgreSQL, MongoDB, MySQL, with a willingness to learn MS SQL Server.

Candidate must be able to support PST business hours.