Senior MongoDB DBA

Senior MongoDB Database Administrator (MongoDB DBA)We are seeking an experienced MongoDB Database Administrator (DBA) to design, deploy, administer, secure, and optimize enterprise-scale MongoDB environments. The ideal candidate will have strong expertise in MongoDB Replica Sets, Sharded Clusters, Ops Manager, Backup & Restore, Security, Performance Tuning, and AWS migration.The role requires hands-on experience with MongoDB cluster architecture, Linux administration, Python/Shell scripting, MongoDB security (X.509, TLS, SSL), high availability, and database migration in production environments.Key ResponsibilitiesDesign, install, configure, and administer MongoDB Replica Sets and Sharded Clusters.Deploy and manage highly available MongoDB environments on Linux.Configure and maintain MongoDB clusters for enterprise applications.Perform capacity planning, cluster expansion, and node management.Cluster ManagementConfigure Replica Sets and Sharded Clusters.Add and remove shard and replica nodes.Convert Replica Sets into Sharded Clusters to support growing data volumes.Manage Config Servers and Mongos routers.Ensure balanced shard distribution across clusters.MongoDB Operations Manager (Ops Manager)Install and configure MongoDB Ops Manager.Onboard Replica Sets and Sharded Clusters into Ops Manager.Upgrade and maintain Ops Manager environments.Manage Projects, Groups, and monitoring dashboards.Configure alerts, monitoring, and operational reporting.Backup, Restore & AutomationConfigure MongoDB Backup & Restore Services (BRS).Automate backup, restore, monitoring, and health-check processes.Develop automation scripts using Python and Shell scripting.Perform disaster recovery planning and testing.Ensure data availability and recovery readiness.MongoDB SecurityImplement MongoDB authentication and authorization.Configure: X.509 Authentication, TLS/SSL Encryption, Certificate Management, Role-Based Access Control (RBAC)Ensure compliance with enterprise security standards.Perform database auditing and security hardening.Performance TuningMonitor and optimize MongoDB performance.Analyze query execution plans.Optimize: Indexes, Query performance, Memory utilization, Storage, CPU usage.Implement text indexes, compound indexes, and efficient indexing strategies.Sharding & ReplicationConfigure: Range-based Sharding, Hash-based Sharding.Monitor replication lag and failover.Ensure even data distribution across shards.Troubleshoot replication and cluster performance issues.Migration & UpgradesUpgrade MongoDB environments (e.g., 4.x to later versions).Migrate MongoDB clusters to AWS.Plan and execute production database migrations.Support zero or minimal downtime upgrades.Monitoring & TroubleshootingMonitor cluster health and availability.Troubleshoot database performance, replication, and connectivity issues.Perform root cause analysis.Resolve production incidents and outages.DocumentationMaintain documentation for: Cluster architecture, Backup procedures, Security standards, Operational runbooks, Upgrade procedures.Document installation, monitoring, auditing, and disaster recovery processes.CollaborationWork closely with Developers, Infrastructure Teams, DevOps Engineers, and Cloud Architects.Support production deployments and database releases.Participate in on-call support and incident response.Mentor junior DBAs and provide technical guidance.Required Technical SkillsMongoDBMongoDB Replica SetsMongoDB Sharded ClustersMongoDB Cluster AdministrationMongoDB Ops ManagerBackup & Restore Services (BRS)MongoDB MonitoringSecurityX.509 AuthenticationTLS/SSLAuthentication & AuthorizationRBACSecurity HardeningDatabase AuditingPerformanceQuery Performance TuningQuery Plan AnalysisIndex OptimizationText IndexesReplication OptimizationChange StreamsDatabase AdministrationInstallationConfigurationMigrationUpgradesBackup & RecoveryDisaster RecoveryScriptingPythonShell ScriptingOperating SystemsLinuxCloudAWSMongoDB Migration to AWSMonitoringMongoDB Ops ManagerCluster MonitoringPerformance MonitoringHealth ChecksRequired QualificationsBachelor's degree in Computer Science, Information Technology, Engineering, or a related field.6–8 years of experience as a MongoDB DBA or NoSQL Database Administrator.Strong hands-on experience with MongoDB Replica Sets and Sharded Clusters.Expertise in MongoDB Ops Manager and Backup & Restore Services.Experience implementing MongoDB security using X.509, TLS, and SSL.Strong Linux administration skills.Experience with Python and Shell scripting.Experience performing MongoDB upgrades and migrations.Excellent troubleshooting, analytical, and problem-solving skills.