Database Administrator - MongoDB

• Participates in application/DB outage incidents to ensure database integrity and
• Defines and maintains database problem reporting, tracking, and resolution procedures.
• Provides proactive input into design issues/constraints, performance tuning, and impact
• Ensure maximum uptime according to the SLA
• Helping team members in case of Issues/Technical Problems
• Research the business needs of our applications and optimize them using MongoDB

Tools / Skills:

• Adding / removing replica and shard nodes in Mongodb Cluster as needed.
• Created Text Index for querying specific documents with string content.
• Good knowledge of a shard key and making sure of even distribution of data across multiple shards.
• Converted replica set to sharded cluster because of data size growth and better query rate planning.
• Configure, manage and troubleshoot MongoDB Sharded cluster
• Configuring MongoDB replica set with members and arbiter
• Configure and monitor MongoDB instances
• Worked on Upgrade/migrations of replicaSet and Sharded cluster from 4.0 to 4.4
• Deploying, migrating data, monitoring, analyzing, and tuning MongoDB.
• In-depth knowledge of Ops Manager and Ops manager Upgrade.
• Knowledge about Groups and Project in Ops Manager
• Knowledge about Authentication and Authorization and X509 authentication
• Should have Configured SSL key files to implement security across all mongod instances.
• Extensive knowledge of Mongo replication architecture and change stream.
• Documenting MongoDB installation, operations, security, auditing multiple environments.
• Troubleshoot any problems that may come up with the database environments: performance issues, replication issues, or operational issues.
• Design and implement HA/DR policies
• Comfortable in using MongoDB tools like, mongostat, mongotop, mongoexport, mongoimport, mongodump, mongorestore etc.
• Should have knowledge about Query plan architecture and performance tuning at host and DB level.
• Establish and maintain backup, restore and recovery processes.
• Implement and maintain MongoDB OPS Manager/Cloud Manager
• Database Security management and User Management
• Knowledge Range based sharding and Hash based sharding/ Indexing
• Migration of Mongo cluster to AWS.
• Knowledge of Linux, Ubuntu system administration skills