Summary
Overview
Work history
Education
Skills
Personal Information
Languages
Timeline
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Mujeebur Rahman Abdul

Ajman,UAE

Summary

Experienced database administrator with expertise in Oracle (11g, 12c, 19c), MS SQL Server (2012, 2019), and PostgreSQL. Proficient in cloud technologies, particularly Oracle Cloud Infrastructure, and skilled in high availability solutions such as Oracle RAC, Data Guard, GoldenGate, and Always On Availability Groups. Demonstrates strong capabilities in performance optimisation using AWR, ADDM, SQL Tuning, and TKPROF. Adept at backup and recovery processes with RMAN and Data Pump. Experienced in scripting and automation with SQL, PL/SQL, and Bash Scripting across various operating systems including Red Hat Linux, HP-UX, Sun Solaris, IBM AIX, and Windows.

Overview

13
13
years of professional experience

Work history

Senior Officer - Database Administration

Ajman Bank
Ajman, UAE
08.2023 - 02.2025
  • Managed installation and administration of Oracle databases across various operating systems
  • Applied RU patches to address vulnerabilities and optimise database performance
  • Monitored database performance, storage, and availability using OEM and OCI Monitoring tools
  • Oversaw OCI Compute, Storage, Networking, and Database services
  • Implemented RU patches enhancing security and performance for databases on-prem and OCI
  • Configured high-availability solutions with Data Guard for standby databases
  • Specialised in database performance tuning using AWR, ADDM, Explain Plan, TKPROF, and SQL Trace
  • Implemented Oracle GoldenGate solutions for data replication and integration
  • Scheduled daily tasks to initiate audit reports
  • Updated UAT databases using production backups to support testing requirements
  • Monitored database health and performance using Oracle Enterprise Manager to identify and resolve issues
  • Managed Oracle ASM to improve database performance and ensure efficient storage utilisation
  • Executed database cloning, migrations and replication using Oracle Data Pump, RMAN and Oracle GoldenGate
  • Configured roles and privileges for data protection compliance
  • Set up initial databases, defined file groups, and optimised storage allocation
  • Developed backup strategies utilising SQL Server and third-party tools
  • Installed, configured and upgraded PostgreSQL databases across Linux and Windows operating systems
  • Enhanced database security by managing roles, assigning privileges and implementing SSL encryption
  • Automated routine administrative tasks utilising Bash scripting and cron jobs
  • Collaborated effectively with cross-functional teams to ensure business continuity

Assistant Consultant

Tata Consultancy Services (TCS)
Riyad, Saudi Arabia
07.2019 - 07.2023
  • Upgraded Oracle databases from 12c to 19c, implementing 19c Grid Infrastructure and performance tuning
  • Built and managed standby databases; executed switchover operations
  • Managed standby databases in active mode for testing and reverted to standby
  • Implemented security patches to ensure compliance and mitigate vulnerabilities
  • Oversaw Oracle GoldenGate environments, identified issues, and ensured smooth synchronisation and minimal lag
  • Managed database storage by resizing tablespace data files and adding disks to disk groups
  • Conducted regular RMAN backups, restoration, and cloning for database integrity
  • Implemented and monitored Enterprise Manager and cron jobs for timely alerts
  • Configured Oracle Data Guard for high availability and disaster recovery
  • Coordinated log sequence synchronisation between primary and standby databases
  • Applied PSU and CPU patches to RAC and standalone databases
  • Conducted schema refreshes from production to pre-production using Data Pump for seamless testing transitions
  • Enhanced system performance via AWR report analysis and bottleneck resolution
  • Monitored database performance and resolved long-running queries to maintain operational efficiency
  • Administered databases and managed alerts using Oracle Enterprise Manager
  • Managed and expanded ASM for production and non-production databases
  • Assisted application team in creating online partitions to enhance database performance
  • Conducted file system housekeeping to maintain optimal space utilisation
  • Managed blocking sessions in databases and cleared upon approval
  • Led annual disaster recovery drills to ensure recovery operations aligned with business continuity plans
  • Developed and administered RMAN backup solutions using Oracle Cloud Control, optimising data recovery processes
  • Deployed and configured cloud agents for target monitoring in Oracle Cloud Control
  • Managed third-party target monitoring with OEM for various database integrations
  • Clients: STC(Saudi Telecom), Cisco

IT Consultant

Ericsson Global India
Bangalore, India
01.2019 - 07.2019
  • Installed and configured Oracle 11g and 12c RAC databases across Linux and Solaris platforms
  • Installed Oracle Enterprise Manager 13c on Linux systems
  • Monitored databases and related services using Oracle 12c and 13c Cloud Control
  • Migrated non-RAC database to RAC infrastructure and managed cluster node adjustments
  • Updated clusterware and databases with latest patches promptly upon release
  • Recovered Oracle 11g/12c RAC databases using RMAN to validate reliability of backup strategy
  • Updated clusterware and database software with latest patch set
  • Configured Active Data Guard in Oracle 11g R2 and 12c for reporting purposes
  • Installed EM agents and configured monitoring for multiple hosts
  • Conducted proactive 24/7 monitoring of database activity and health checks
  • Coordinated with Oracle for P1 issue resolution
  • Applied patches to Oracle database following Oracle's recommendations
  • Configured and managed Oracle Golden Gate replication across Oracle database environments
  • Managed client accounts at Mobily Telecom

Senior Software Engineer

Oracle India Pvt. Ltd.
Bangalore, India
08.2014 - 12.2018
  • Handling Critical Service Requests
  • Support the customer related issue's resolution on-site and remotely
  • Multiple database targets patching using Cloud Control
  • Involved with installation and maintenance of ORACLE 11g, 12c and standby database for High Availability and Disaster Recovery purpose
  • Created 100+ defect change requests reflected in code patches and hotfixes
  • Experience in working with Oracle Product Support using Metalink to resolve critical issues
  • Installed and Upgradation of Cloud Control from 11g/12c to 13c
  • Supporting Customers to apply patches CPU, PSU and SPU's and applying bug fixes using Cloud Control and OPatch utility
  • Installed and configured Data Guard using physical-standby for high availability and reporting
  • Troubleshooting RAC instances, Services, Node Apps and Cluster-ware using SRVCTL and CRSCTL command line utilities
  • Creation and configuration of databases as per client requirements
  • Managing Database Structure, Storage Allocation, Database Access
  • Applied patches to fix the bugs as recommended by ORACLE
  • Creating objects like tablespaces, tables, indexes, synonyms, views
  • Creating database links, materialized views
  • Configuring listener.ora, tnsnames.ora files for remote connectivity
  • Performing logical backups using exp/expdp, and importing using imp/impdp whenever required
  • Performing table refresh, schema refresh, database refresh
  • Configuring hot/RMAN backups for databases
  • Documented the Backup and Recovery procedures
  • Database reorganization to minimize fragmentation
  • Clients: Global Customer Services(GCS)

Database Administrator

Wipro Technologies
Bangalore, India
08.2012 - 07.2014
  • Creating databases in single node/Multi node environments
  • Enrolling new application users based of the requests and grants appropriate roles and privileges
  • Configuring RMAN Cold/Hot backups for the databases using OEM
  • Scheduling gather stats for the databases
  • Configuring and Maintaining standby databases
  • Performing Golden Gate re-instantiation and taking necessary actions when replicats abend
  • Installing Grid Infrastructure and Database software in single/Multi nodes environment
  • Patching the GI/DB homes (rolling installable PSU)
  • Used 11g OEM Grid Control/12c OEM Cloud Control for Monitoring DBs, troubleshooting OEM agent issues
  • Upgrading databases to higher versions
  • Configured the scripts to monitor the databases, to monitor FRA usage on the databases
  • Cloning databases for testing/reporting purpose
  • Migrating databases from Non ASM to ASM
  • Monitoring DB performance and tuning when required
  • Performing Schema/Table/DB refreshes using exp/imp, expdp/impdp
  • Performing Database Reorganization regularly for removing row migrations and fragmentation using export and import utilities
  • Taking care of tablespace related issues like increasing the storage parameter values, resizing the data files, adding new data files etc
  • Clients: Lloyds Banking Group(LBG)

Education

Master of Computer Applications - Computer Applications

Osmania University

Skills


  • Databases: Oracle (11g, 12c, 19c), MS SQL Server (2012, 2019), PostgreSQL
  • Cloud : Oracle Cloud Infrastructure
  • High Availability & DR: Oracle RAC, Data Guard, GoldenGate, Always On Availability Groups
  • Performance Optimization: AWR, ADDM, SQL Tuning, TKPROF
  • Backup & Recovery: RMAN, Data Pump, ASM
  • Cloud & Infrastructure: Oracle Cloud Infrastructure (OCI), Exadata
  • Scripting & Automation: SQL, PL/SQL, Bash Scripting
  • Operating Systems: Red Hat Linux, HP-UX, Sun Solaris, IBM AIX, Windows



Personal Information

  • Available: One Month Notice Period
  • Nationality: Indian
  • Marital status: Married

Languages

English
Fluent
Hindi
Fluent
Arabic
Beginner
Telugu
Fluent
Tamil
Beginner

Timeline

Senior Officer - Database Administration

Ajman Bank
08.2023 - 02.2025

Assistant Consultant

Tata Consultancy Services (TCS)
07.2019 - 07.2023

IT Consultant

Ericsson Global India
01.2019 - 07.2019

Senior Software Engineer

Oracle India Pvt. Ltd.
08.2014 - 12.2018

Database Administrator

Wipro Technologies
08.2012 - 07.2014

Master of Computer Applications - Computer Applications

Osmania University

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Mujeebur Rahman Abdul