SME Database Administrator

21 hours ago

hyderabad, India Cozzera Full time

Job Title: SME Database AdministratorExperience: 10+ YearsLocation: Onsite – HyderabadAbout the RoleWe are seeking an experienced Database SME (Oracle + MongoDB/MariaDB) with deep expertise in administering mission-critical, high-volume, distributed database environments—ideally in the telecom domain. This role requires mastery of SQL/NoSQL systems, performance tuning, automation, and building highly available architectures across hybrid or cloud-native infrastructures.Key ResponsibilitiesDatabase Administration & OptimizationAdminister Oracle DBA, MySQL, MariaDB, MongoDB, and AWS RDS environments.Handle installation, configuration, patching, upgrades, and version migration.Optimize performance including slow queries, indexing, sharding, replication tuning, and resource usage.High Availability & RecoverySet up and manage clustering, replication, failover, multi-region DR, and backups.Ensure HA using Oracle RAC, MongoDB ReplicaSets, MariaDB Galera clusters, etc.Automation & DevOpsImplement schema versioning automation using Liquibase.Deploy and manage DB workloads in Docker/Kubernetes.Automate operations through Ansible, Terraform, and CI/CD pipelines.Monitoring & TroubleshootingMonitor using New Relic, Grafana, Prometheus, CloudWatch, and APM tools.Troubleshoot replication failures, bottlenecks, memory issues, IOPS constraints, connection pool saturation, etc.Distributed Systems IntegrationIntegrate DB systems with Kafka, Redis, RabbitMQ, ETCD, Elastic Cache.Work in real-time, high-throughput systems typical in telecom domains.Security & ComplianceImplement RBAC, encryption, auditing, TLS certificates, password rotation, compliance controls.Operational SupportParticipate in 24x7 on-call rotation for critical incidents.Create documentation, dashboards, SOPs, and architecture diagrams.Requirements10+ years of expertise in database engineering and administration.Deep experience with Oracle DBA (mandatory) + MongoDB or MariaDB (mandatory).Strong understanding of SQL, NoSQL, replication, and performance tuning.Strong Linux systems expertise.Proficiency in scripting languages: Shell, Python.Experience with CI/CD, containerized databases, and infra automation.Excellent communication and troubleshooting abilities.Nice to HaveExperience with Elastic Stack, Kafka pipelines, or internal tooling.Cloud certifications (AWS/Azure/GCP).Experience building automated database management tools.

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