Mythri Kora
Senior Oracle Applications & Exadata DBA | Technical Lead
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About
Senior Oracle Applications DBA with 20 years experience supporting enterprise‑scale environments across public and private sectors. Strong expertise in Oracle E‑Business Suite (R12.2/11i), Exadata, Oracle Cloud (IaaS/PaaS), SOA, WebLogic, OAM, and Identity & Access Management. Proven track record in carrying out upgrades, patching, performance tuning, DR setup/testing, and end‑to‑end environment management.
Recognised for leading BAU operations, onboarding new customers, and delivering complex technical changes with minimal business impact. Adept at applying ITIL practices to maintain secure, stable, and highly available systems. Have good communication skills in managing and handling technical teams, service providers and with an ability to interact well with management teams.
Technology savvy with a flair to identify and implement realistic solutions that help organization achieve its goals and objectives
Experience
Oracle Applications DBA Consultant – BAU Lead - DSP
(2025-09)
- Supporting 40+ customers across Oracle EBS, APEX, FWM, OBIEE, and WebLogic estates.
- Lead DBA for multi‑customer BAU operations.
- Delivered monthly/quarterly patching, certificate renewals, and DR testing.
- Monitored and optimised production and non‑production environments.
- Capacity management related activities like planning for system growth
- Ensured compliance, stability, and high availability across all supported platforms.
Senior Oracle DBA - Cintra UK
(2019-10 - 2025-08)
- Technical SME for Oracle Cloud R12.2 EBS migration for a major public sector client.
- Migrated Oracle databases to Exadata and DBaaS cloud platforms.
- Performed patch analysis, Exadata/grid patching, upgrades.
- Setting up and testing DR environments.
- Installed/upgraded OEM 13c for enterprise monitoring.
- Delivered performance tuning, troubleshooting, and technical consultancy.
- Maintenance of Oracle Cloud systems
- Trained team members and supported BAU transition activities.
Oracle Applications Consultant - Capgemini UK
(2015-03 - 2019-09)
- Technical lead for T‑Police systems (Oracle R12 EBS, SOA 11g, WebLogic, BI 11g, IDM 11g).
- Supported Ministry of Defence systems (OAM, OID, WebGate, R12 EBS, Discoverer).
- Delivered PSU/BCP and legislative patching across multiple estates.
- Led Java 7u45 upgrade across all R12 EBS servers and client machines.
- Upgraded Oracle 11g primary/Data Guard instances with minimal downtime.
- Delivered R12.1.3 DB upgrade and CPU patching for MoD.
- Onboarded new customers into BAU and renewed SSL certificates on R12 EBS, OID and OAM systems
- Conducted work product reviews and trained junior DBAs.
Enterprise Applications Consultant - Atos IT Services UK Ltd
(2013-03 - 2015-03)
- Maintain, Monitor and Administered Oracle R12, SOA, WebLogic, OHS, and Oracle DB 11g for MoJ.
- Managed installations, upgrades, patching, tuning R12 EBS, concurrent manager, SOA, Weblogic
- Delivered EBS/SOA/OPA/PUI releases into production/test.
- Performed application/database clones (single/multi‑node).
- Supported Data Guard standby databases and resolved performance issues on Prod /Test environments.
Oracle DBA & Unix System Administrator - Arvato UK & Ireland
(2009-04 - 2013-03)
- Administered Oracle 9i/10g/11g and MS‑SQL databases.
- Maintenance, cloning, patching and Support of Oracle E‑Business Suite (Financials).
- Managed Sun Sparc Servers, Solaris OS, Installation of Veritas NetBackup client on Solaris servers, maintenance of Sun SAN storage.
- Delivered performance tuning, capacity planning, and patch management.
- Led data migration projects from physical Sun servers to Oracle VM SPARC T3.
- Implemented RMAN across all Oracle databases
- Develop and maintain supporting documentation for changes, faults, solutions, hardware configurations, etc. for inclusion in the configuration management system
- Provide architectural and technical consultancy for projects
- The recommendation and implementation of backup strategy to improve availability
- Installation and configuration of database operating system as per project requirements
- Manage advise and guide technical development teams, support teams and service providers
- Assisting developers to improve the application performance
- Perform database/application tuning, capacity planning (plan growth and changes), patch management and version control
- Coordination with third party (for applications that use database, hardware suppliers, and for all technical support from product vendors)
Technical Consultant - Airversent Ltd
(2008-05 - 2008-11)
- Maintain, manage and monitor Oracle Database and Microsoft SQL servers including backup, performance tuning and availability management
- Creating instances and databases with appropriate parameters and database structures
- Managing physical database resources
- Reviewing and monitoring system and instance resources to ensure continuous database operations (i.e. database storage, memory, CPU, network usage, and I/O contention)
- Monitoring and tuning memory usage for Oracle and SQL server databases
- Moving, rebuilding or changing database objects as required in production
- Reviewing SQL performance, tuning and backup & recovery strategies
- Assisting in developing purge/archive criteria and procedures for historical application data
- Carrying out application performance tuning and testing
- Active involvement in project development phases right from Design, Planning Installation configuration and Operation support transition
- Implementation, maintenance, and test backup & recovery strategies
- Performing database migrations and document migration procedures and test results
- Evaluating and testing new features/functionality
- Providing assistance in the development of the conceptual & logical database design
- Supporting application programmers in the testing of database applications
- Providing technical assistance to other team members
Database Administrator - Carmarthenshire County Council
(2007-10 - 2008-05)
- Support and maintenance of the production & development environment consisting of Oracle & SQL server databases.
- Database level performance tuning (using statspack, tkprof and trace analyser)
- Space management for all production servers and ensuring successful & periodical backup, Restoration & Tuning
- Change management and Project management for upgrades and minor database changes
- Delivered Oracle 9i → 10g upgrades and SQL Server upgrades.
Database Administrator / Developer - Arvind Clothing Limited
(2000-03 - 2002-06)
- Support & maintenance of the database and client systems to ensure continuation of essential customer services and systems
- As part of support activities, performed administration, performance tuning of application & database, SQL tuning and optimization of the database resources
- Undertake analysis and design of system changes as per business requirements
- Undertake the installation, upgrading, back-ups & restores of database software
- Installation, designing & development of applications using Forms4.5/Reports 2.5 as per users requirements and delivering effective solutions
- Software Implementation for Warehouse management: developed on oracle forms and reports. Front end on forms6i and Database on Oracle 8i on Win2K.
- Warehouse system maintenance and tuning: fine tuned warehouse system reports – like, Dispatch module, Receipt of finished goods Return inwards and similar functions
Junior Faculty - Guru Brahma Concerns
(1998-10 - 1999-05)
- Training students on Oracle RDBMS /Oracle Forms & Reports
Education
Bachelor degree - Commerce and Trade
Post Graduate Diploma - Software Technology and Systems Management
