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Sr. Mongo Database Admin Resume

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Reston, VA


  • Over 8 years of IT experience in Database design, administration and all aspects of Systems Development using Client/Server technologies that includes Requirements gathering, Analysis, Design and Development
  • Extensive knowledge in MongoDB concepts and good knowledge in Administration.
  • Experience in upgrading and migrating various versions of Mongo database on different platforms.
  • Focused on architecting NoSQL databases like Mongo, Cassandra and Cache database.
  • Developed enhancements to MongoDB architecture to improve performance and scalability.
  • Expert in Oracle database design and administration.
  • Experienced in Writing UNIX Korn Shell Scripting for job scheduling and sequencing
  • Experience in Performance Tuning of SQL and Stored Procedures and Java scripts
  • Good expertise in using Database tools like MongoVue, Mongo compass and Toad.
  • Extensive experience in writing SQL and PL/SQL scripts to validate the database systems and for backend database testing.
  • Configured MongoDB as a service in Linux and Windows environments.
  • Performed Pre - Migration Assessment, Migration & Post Migration
  • Identifying Reports Complexity, Implemented Row level/Column Level/Report Level Security
  • Experience in data retrieval methods using Universes, Personal Data files, Stored Procedures, and free hand SQL
  • Proficient in SQL and PL/SQL coding
  • Excellent Communication skills


Database Tools: MongoVue, Robomongo, MongoCheff, Mongodump, Mongorestore, Mongofiles, MMS

Databases: Mongo 2.x,3.0.x,3.2.x Oracle 11g/10g/9i/8i, MS Access 2000, MS SQL Server

Web/Application Servers: Apache Tomcat, JBoss, Web logic

Testing Tools: QTP 9.2, Win Runner 8x, Test Director

O/S: Windows NT/XP Prof/2003 Server/2000/98/95, UNIX, Solaris, Linux (RedHat 7.0/6.0/5.0)

Languages: Java, C, C++, COBOL, VB, SQL, PL/SQL, HTML, XML

Others: MS Office-2003, MS Project


Confidential, Reston, VA

Sr. Mongo Database Admin


  • Conducting case / system / process study for project planning, scoping, estimation, tracking for MongoDB clusters.
  • Built MongoDB multiple version (2.x, 3.0.x and 3.2.x) of cluster.
  • Implemented TTL and indexing based on collection of profiling data and EXPLAIN analysis.
  • Performed monitoring and capacity planning.
  • Responsible in performing multiple upgrades to maintain the database function without errors.
  • Experience in handling the service requests with MongoDB Jira for resolving issues.
  • Suggested suitable MongoDB Data Modeling techniques for application team.
  • Monitoring of Document growth and estimating storage size for large MongoDB clusters depends on data life cycle management.
  • Adding and removing shards from sharded cluster.
  • Enable sharding on databases and collections by choosing suitable shard keys.
  • Familiar with Range based sharding and Hash based sharding.
  • Measuring the Index use and dropping the indexes which are not actively used by queries.
  • Good Knowledge on Journaling process and manage journaling to prevent data loss.
  • Converted replicaset and sharded cluster from MMAPV1 storage engine to Wired Tiger storage engine.
  • Configured SSL PEM Keyfile and CA file to encrypt communication channel connections.
  • Enforced Keyfile Access Control in a Replica Set and sharded cluster.
  • Converted secondary node to Arbiter based on requirement to reuse of storage for different application.
  • Sizing of Oplog based on Workloads and to maintain replication properly across all the nodes.
  • Converted mirrored config servers in 3.0 to replicaset in 3.2 version.
  • Maintaining Sharded cluster availability and security across all the nodes.
  • Installed and configured OPS manager automation, monitoring and backup agent.
  • Implemented better backup solution to backup Mongo Databases.

Environment: MongoDB, MMS, OPS manager, mongostat, mongotop, mongofiles, Ruby, Puppet, Linux/Unix, LVM Snapshots, Backup scheduler, Dataguard, Pearl, PyMongo, Java script, Docker, Containers

Confidential, Durham, NC

Sr. Oracle/Mongo DBA


  • Key person in on-boarding the new applications and re-architecting the application by working closely with the architect team.
  • Worked closely with the application team to gather the application requirement with respect to the infrastructure build.
  • Provided the application team solutions based on the requirement and issues as per the company policies.
  • Prepared the Detail Design Document for the Database migrations and the new application on-boarding.
  • Prepared the document supporting the application architecture and resource management. Co-ordinated with the offshore to schedule the application releases.
  • Performed various database migrations from 10G to oracle and to 12c. The migration involves change of OS platforms/servers/storage using RMAN, datapump and Golden Gate.
  • Performed the database migration using Golden Gate to minimize the downtime of the large database.
  • Supported the application performance testing. Analyzed the database and application performance. Worked on the performance tuning.
  • Worked on the database, cluster build for Oracle 11g and builds of MongoDB.
  • Supported the MongoDB database migrations/upgrade from 2.2.3 to 2.4 and higher versions. Installed and configure the MongoDB replica set.
  • Worked on Design Engineering of the Mobile Merge application to introduce the MongoDB.
  • Designed the MongoDB application to get the feed from other oracle databases.
  • Monitored the MongoDB performance using Ops Manager and ROBO Mongo. Raised tickets through JIRA to resolve any issue.
  • Installed and configured the OPS manager and automated MMS agents. Installed backup agents.
  • Configured Sharding to support the huge data growth.
  • Query the MongoDB database using JSON.
  • Configured the database RMAN backup in Data Domain and NetBackup. Restored the database as per the requirement.
  • Configured Active Data Guard and performed DR test using snapshot database.
  • Monitored the database performance using OEM Grid Control
  • Configured the Golden Gate replication for the HA purpose. Resolved Golden Gate issues and performed the POC to set up the replication.
  • Participated in the HA testing and storage migrations and also decommissioning of the databases.
  • Debugged and modified the shell script as per the requirement and configured in the crontab.
  • Addressed all database related issues.

Environment: MongoDB 2.x, MMS, Replicaset, Oracle 10g/Oracle 11g/RAC, Linux, Oracle Enterprise Manager Grid Control, Unix, TOAD and SQL Developer, RDBMS, SQLDBA, PL/SQL, Shell Scripting, stored procedures, ASM, Data guard, Oracle Cloud Services

Confidential, Salt Lake City, UT

Oracle DBA


  • Managed the Logical standby database and resolved ongoing issues. Maintained the standby database in synch with PROD server. Worked on troubleshooting of the slowness in shipping of archive logs.
  • Worked and scheduled on RMAN backup and recovery strategy for new servers and database. Supported the recovery of databases in natural calamities.
  • Monitored database performance. Worked on AWR, ADDM, ASH reports for performance tuning.
  • Enabled the flashback and even successfully recovered lost data from flashback logs in case of data lost.
  • Proposed the architectural implementation plan of migration and installation.
  • Managed the user profile and role for secure data access.
  • Migrated databases to on ASM and configured new applications. Installed and configured GRID Control and configured the targets to add in the Grid Control.
  • Resolved the Grid Control OMS and OMA issues
  • Worked on the pre-upgrade and post-upgrade tasks to check the database performance. Used Real Application Testing from Grid Control for the performance and validating the databases. Worked with developers on data validations.
  • Applied critical patch and security patches (PSU) on RAC ASM, single node and standby database.
  • Implemented data migrations and code migrations as per schedule.
  • Installed and configured Golden Gate on replication. Monitored the extract, replicat, manager process. Worked on pre-installation and post-installation testing to set up GG. Configured Golden Gate for DDL support and conflict resolution.
  • Installed Golden Gate Director to monitor the GG process and the parameter files. Also installed WEBLOGIC server and client to fulfill the requirement of GG director installation.
  • Developed the UNIX shell script to monitor database and to schedule jobs. Monitored server level performance by checking CPU, I/O, and paging. Worked on the system level reports.
  • Developed shell script to check listener, database up time, get the automated tablespace and health reports, automated the AWR reports for database monitoring.

Environment: Oracle 11g/10g /9i, ASM, Sun Solaris 9, Red Hat Enterprise Linux 4.x, OEM, Explain Plan, Tkprof, SQL*LOADER

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