Database Administrator
Tata Communications
2 - 5 years
Bengaluru
Posted: 28/06/2026
Job Description
Database Administrator (DBA)
Job Summary
:We are looking for an experienced DBA with strong expertise in PostgreSQL, Oracle, MySQL, Click House, RabbitMQ, and Apache Pulsar. The candidate will manage database performance, availability, security, and support in a Linux-based production environment
.
Key Responsibilitie
s:Database Administration: Install, configure, and maintain PostgreSQL, Oracle, MySQL, and Click House databases Perform database tuning and performance optimization Design schemas, indexes, and partitioning strategies Manage backups, recovery, disaster recovery (DR), and high availability (HA) Perform database upgrades, patching, and migratio
nsPerformance and Monitoring: Monitor database systems using tools like pgAdmin, Oracle OEM, MySQL Workbench Use Prometheus, Grafana, Zabbix for monitoring Identify and resolve performance bottlenecks Optimize CPU, memory, and I/O usa
geSecurity and Compliance: Implement role-based access control (RBAC) Manage encryption (data at rest and in transit) Ensure security standards and compliance polici
esLinux and Infrastructure: Work on Linux systems (RHEL, CentOS, Ubuntu) Perform shell scripting (Bash) Analyse logs and system performance Collaborate with DevOps and infrastructure tea
msMessaging Systems: Administer RabbitMQ and Apache Pulsar Manage queues, topics, partitions Configure replication and high availability Monitor and troubleshoot message flow issu
esData Warehousing: Manage Click House clusters Optimize large-scale data ingestion and queries Support analytics workloads and ETL pipelin
esAutomation and DevOps: Automate DBA tasks using Bash and Python Use Ansible or Terraform (optional) Support CI/CD pipelines for database deploymen
tsIncident Management: Provide production support Troubleshoot outages and issues Perform root cause analysis (RC
A)
Required Skil
ls:Core Database Skills: PostgreSQL, Oracle, MySQL SQL, PL/SQL, stored procedures Query tuning and index
ingAdvanced Skills: Click House (OLAP systems) RabbitMQ and Apache Pul
sarSystem Skills: Strong Linux administration knowledge Apache server basics Bash
andMonitoring Tools: Prometheus, Grafana ELK Stack (Elasticsearch, Logstash, Kiba
na)
Qualifications and Experie
nce:Bachelor s degree in Computer Science or related f
ield5+ years of DBA experi
enceCertifications preferred (Oracle, PostgreSQL, My
SQL)
Nice to Have: Cloud experience (AWS, Azure, GCP) Kubernetes and containerization Kafka, Airflow know
ledgeSoft Skills: Problem-solving skills good communication Ability to work under pressure Attention to d
etailWork Environment: Linux-based systems 24/7 production support environment Collaboration with DevOps and development
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