SME Database Administrator

6 days ago

Hyderabad, India Cozzera Full time

Job Title: SME Database Administrator Experience: 10+ Years Location: Onsite – Hyderabad About the Role We 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 Responsibilities Database Administration & Optimization Administer 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 & Recovery Set up and manage clustering, replication, failover, multi-region DR , and backups. Ensure HA using Oracle RAC, MongoDB ReplicaSets, MariaDB Galera clusters, etc. Automation & DevOps Implement schema versioning automation using Liquibase . Deploy and manage DB workloads in Docker/Kubernetes . Automate operations through Ansible, Terraform, and CI/CD pipelines . Monitoring & Troubleshooting Monitor using New Relic, Grafana, Prometheus, CloudWatch , and APM tools. Troubleshoot replication failures, bottlenecks, memory issues, IOPS constraints, connection pool saturation, etc. Distributed Systems Integration Integrate DB systems with Kafka, Redis, RabbitMQ, ETCD, Elastic Cache . Work in real-time, high-throughput systems typical in telecom domains. Security & Compliance Implement RBAC, encryption, auditing, TLS certificates, password rotation, compliance controls. Operational Support Participate in 24x7 on-call rotation for critical incidents. Create documentation, dashboards, SOPs, and architecture diagrams. Requirements 10+ 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 Have Experience with Elastic Stack , Kafka pipelines, or internal tooling. Cloud certifications (AWS/Azure/GCP). Experience building automated database management tools.

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