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naukri

Senior Database Administrator

DALIL INFORMATION TECHNOLOGY
Abu Dhabi, UAE
Senior
1 months ago
Oracle DatabaseMS SQL ServerMongoDBPostgreSQLMySQLOracle RAC
Free

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Oracle DatabaseMS SQL ServerMongoDB
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Key Responsibilities Database Administration

  • Install, configure, patch, upgrade, and administer Oracle (including Multitenant, RAC, Data Guard, ASM), MS SQL (Always on), MongoDB, PostgreSQL and MySQL (InnoDB Cluster & ClusterSet) database environments in production, staging, and development.
  • Design and implement high availability (HA) and disaster recovery (DR) architectures including Oracle RAC, Oracle Data Guard, GoldenGate replication, MS SQL (Always on), PostgreSQL replication, MongoDB replica sets / sharded clusters and MySQL InnoDB Cluster.
  • Perform logical and physical backup and recovery operations using RMAN, Data Pump, mongodump/mongorestore, mysqldump, and pg dump, and validate recovery procedures on a regular schedule.
  • Conduct performance tuning and troubleshooting at all levels including SQL/query optimization, indexing strategies, storage I/O, memory, network, and OS level diagnostics.
  • Plan and execute large scale database upgrades, migrations, and cross platform conversions with minimal downtime.
  • Implement and enforce database security: user management, role based access control, auditing, TDE encryption, data masking, and compliance with organizational and regulatory standards.
  • Develop and maintain automation scripts (Shell, Python, PL/SQL) for routine database operations, monitoring, and housekeeping tasks.

Key Responsibilities Middleware Administration

  • Install, configure, and administer Oracle WebLogic Server including domain creation, managed servers, clustering, load balancing, and JVM tuning.
  • Administer Oracle SOA Suite and Oracle Service Bus (OSB) including composite deployment, troubleshooting, dehydration store management, and integration support.
  • Manage Oracle Business Intelligence Enterprise Edition (OBIEE) 12c and Oracle Analytics Server (OAS): installation, configuration, RPD deployment, security, and performance optimization.
  • Install, configure, and support Oracle Data Integrator (ODI) for ETL workloads, including agent management, repository administration, and scenario execution.
  • Deploy and manage Oracle Forms & Reports and other Java based applications on WebLogic.
  • Apply patches, security updates, and CPU/PSU bundles to all middleware components in line with vendor recommendations and change management processes.
  • Install, configure, and administer Apache products (Kafka, Spark, Tomcat) including clustering, load balancing, and JVM tuning.

Key Responsibilities Operating System & Infrastructure

  • Strong working knowledge of Linux/Unix (Oracle Linux, RHEL, CentOS) and Windows Server environments hosting database and middleware workloads.
  • Proficiency in bash and PowerShell scripting for automation, monitoring, log analysis, and routine maintenance.
  • Solid understanding of storage (NFS, ASM, SAN), networking, kernel parameters, file systems, and OS level security hardening concepts.
  • Familiarity with capacity planning, server provisioning, and OS level upgrades, with the ability to coordinate effectively with infrastructure and virtualization teams.
  • Hands on experience working with containerized environments, including Docker (and exposure to Kubernetes / OpenShift is a plus) for deploying, running, and managing database and middleware workloads.

Key Responsibilities Monitoring, Operations & Support

  • Implement and maintain proactive monitoring frameworks using Oracle Enterprise Manager (OEM Cloud Control), Grafana, Prometheus, or equivalent tools.
  • Respond to production incidents, perform root cause analysis (RCA), and deliver post incident reports with corrective and preventive actions.
  • Serve as the primary technical contact for database and middleware vendors, coordinating SLAs, escalations, support tickets, and product renewals.
  • Maintain detailed technical documentation, runbooks, architecture diagrams, and standard operating procedures (SOPs).
  • Provide 24/7 on call support on a rotational basis for critical production systems.
  • Collaborate with application, security, DevOps, and infrastructure teams to align database and middleware operations with organizational standards and regulatory requirements.

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