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Chandrakanth - Lead Database Administrator

[email protected]

Location: Dallas, Texas, USA

Relocation: YES

Visa: H1B

Resume file: Chandra_DBA_AS_C_1776795586297.docx Please check the file(s) for viruses. Files are checked manually and then made available for download.

Chandra Sekar Battula Lead Database Administrator Lead Database administrator and Muloud professional with 14+ years of experience of designing, managing, and modernizing resilient, enterprise-scale databases across diverse platforms, including both RDBMS and NOSQL systems in on-premises as well as native public, private cloud environments. I have extensive experience as a Primary DBA supporting clients across US, EMEA, APAC where I managed and maintained 2000+ production databases. Demonstrated success in designing and delivering secure, scalable, high-performance solutions ensuring the availability for mission critical database and applications in 24/7. Proficient in database installation, upgrades, migrations, integrations, replications, performance tuning, and high availability solutions. I hold multiple certifications like AWS Certified Solutions Architect Professional, OCI Multi-cloud architect professional, Oracle Database certified professional administrator. Major Achievements Proficient in managing Oracle and PostgreSQL and MSSQL Database services across both on-premises environments and Cloud. Proven expertise in database implementation, upgrades, migration, integrations and patching, in on-prem and cloud environments like OCI, AZURE. Strong background in database security management, including implementation of advanced security features such as TDE, Database Vault, Audit Vault, and compliance with organizational and regulatory standards. Skilled in database performance tuning and optimization to ensure smooth business operations using OEM and AWR/ADDM/ASH/SQL Tuning Advisor. Design and manage backup, restore, and disaster recovery strategies Proficient in disaster recovery operations, including failover and switchover activities using Data Guard, and monitoring real-time synchronization between primary and standby databases. Experienced in database migrations from on-premises environments to cloud platforms Support ETL processes and data movement across systems, Experience with Large scale HA systems. In-depth knowledge of Oracle technologies including Exadata, OEM, OCM, OID, Data Guard, Golden Gate, RAC, ASM, RMAN, and Data Pump. Oracle GoldenGate for data replication implementation and Administration. Support MSSQL database and its operations. Worked on Advanced Data Compression, Archiving, Online Table Reorg to improve performance. Automation of Backup/Restore and scripting using Bash Shell, Perl, Python, Scheduling using simple messaging service, schedulers and Cron Jobs. Proficient in Technical documentation and system design. Develop and enforce database standards, policies, and procedures, Ensure alignment with enterprise architecture and security requirements Experience with Power BI reporting environments and DevOps tools (CI/CD, Git, pipelines) Worked alongside Devops teams in agile software development projects with tasks include Deployment, Coding, Testing, Debugging and Documentation. Strong working knowledge of operating systems including Unix/Linux and Windows. Exposure on AWS, GCP cloud platforms. Maintained SLAs for Uptime of Applications & Database Systems Performance with 99.9999% Worked on multiple OS platforms Sun Solaris, HP-UX, IBM-AIX, RHEL and MS Windows. Technical Skills Network Platform OS : Linux (RHEL, OEL), Unix (Solaris10, HP UX, IBM AIX), Windows NT. Database : Oracle 9i/10g/11g/12C/19C, PostgreSQL, MSSQL Database Utilities : Rman, OEM 12C/13C, DBCA, DBUA, Datapump (expdp/impdp), Golden Gate Tools : Toad, SQL Developer, Jira, GIT Code Repository, Remedy. Scripting & Prog Lang : Shell, Perl, Json, PL/SQL, Python. Data Replication Tools : Oracle Goldengate. Cloud Platforms : OCI, AWS Cloud, AZURE, GCP, IDCS Backup & Recovery : RMAN Incmtl, Full, Archive, Hot. Storage : NAS, SAN, NetApp, EMC, Exadata X3, Commvault. Datawarehouse : Informatica, Cognos, Amazon Redshift. Oracle ERP : Oracle E-Business Suite 11i/ R12 (11.5.10.2,) (12.1.3) (12.2.*). Fusion Middle Ware : SOA, WebLogic Server, Apache, OID, IDM Database Upgrades : Database from 11g to 12c, 12c to 19c and containerization. Work History Lead Administrator at Wipro limited. Client: UBS, United States (2025-Current) Manage Oracle and MSSQL database health, availability, and performance; review alerts, logs, blocking sessions, tablespace usage, and long-running queries, including Exadata health checks. Install, configure, upgrade, and maintain Oracle and SQL databases and ensure high availability, reliability, and performance of database systems Database migration from on-prem to Cloud (OCI, AZURE). Managed and administered Oracle Exadata Cloud Service (ExaCS) environments, ensuring high availability, performance, and scalability. Identify and resolve performance bottlenecks, implement monitoring tools and tuning strategies and Improve query performance and overall system efficiency Manage Database backups; validate backup integrity, perform restorations for non-production refreshes, and handle recovery scenarios (point-in-time recovery, DR drills). Administer Data Guard environments; perform failover and switchover activities for resiliency testing and ensure real-time synchronization. Identify and resolve performance bottlenecks, implement monitoring tools and tuning strategies and Improve query performance and overall system efficiency. Apply quarterly database and grid patches; perform pre/post patch validation and coordinate with application teams during maintenance windows. Administer Oracle GoldenGate for data replication, Support integration across multi-tier architectures Worked on Oracle Cloud Infrastructure (OCI) for database deployments, migrations, and monitoring. Create and manage databases, schemas, users, and ASM storage; handle tablespace management, capacity planning, and data growth. Assist database and application teams in resolving database connectivity issues through TNS, SCAN, Connection manager. Develop and enforce database standards, policies, and procedures, Ensure alignment with enterprise architecture and security requirements Develop automation using shell scripting and Ansible to streamline routine DBA tasks such as backups, monitoring, and patching. Technical documentation for the standard activities and design activities Agile/Scrum development environments using jira tool. PowerBI reporting and using DevOps tools (CI/CD, Git, pipelines). Manage incidents, service requests, and changes via ServiceNow; troubleshoot production issues within SLA and perform root cause analysis (RCA). Document issues, resolutions, and standard operating procedures for knowledge sharing and operational consistency. Collaborate with application, development, and infrastructure teams to ensure system stability and performance. Provide regular health reports and status updates; participate in on-call support for critical production systems. Raise and manage Oracle support tickets for product issues; follow through to resolution and RCA. Mentored junior DBAs and collaborated with development, infrastructure, and business teams on cross-functional initiatives Client: Cisco Systems Inc, United States (2023-2025). Providing L3 support for over 100+ critical, high-availability Cisco production databases and applications. Lead the design, development of scalable with high availability and operable high-performance database platforms across relational and non-relational managed services to scale-out variants that scale to petabytes of data. Oracle Database upgrades, multi-tenancy feature enable. PostgreSQL and MSSQL database administration. Golden Gate replication implementation and management. Supported Oracle databases on Exadata and cloud platforms, ensuring optimal performance and reliability. Disaster Recovery setup and administration for failover and switchover Administered, supported, and monitored databases by proactively resolving database issues and maintaining servers. Mentored junior DBAs and collaborated with development, infrastructure, and business teams on cross-functional initiatives. Resolved issues and escalated problems with knowledgeable support and quality service. Adhered to set schedules to test databases for flaws and reduce downtime. Change/Incident/Problem Management using service now and Jira, Attending CCB calls for critical CR approvals. Managed SSL certificates, security policies, and integration between middleware components. Setup and maintaining Database Backups. Automate Database monitoring and regular tasks. Power BI reporting for Database metrics and alerts. Experience in analyzing database performance issues. Managed large-scale production databases in OCI/AWS environments, including monitoring and troubleshooting. Set up and controlled user access levels across databases to protect important data. Supporting Cisco SSO solutions like Oracle IDCS. Experience in Oracle Cloud. Provide on-call support for production incidents Supported 24x7 on-call rotation and incident resolution in accordance with SLAs. Working with Development teams to solve database-related issues Associate Consultant at Tata Consultancy Services. Bangalore, India Client: Cisco Systems Inc, India and USA (2018-2023) L3 support for critical, high-availability Cisco Oracle Databases and related applications like EBS, OID, Weblogic, FMW, OCM, Oracle IDCS cloud. Database implementation and up-gradations and migrations. Database technologies Oracle, Postgresql, MSSQL, MongoDB operations and support. Disaster Recovery and HA setup using Data Guard, RAC and administration. Set up and controlled user profiles and access levels for each database segment to protect important data. Setup and maintaining Database Backups recovery. Periodically restore backups on backup servers to validate integrity and ensure successful recovery. Golden Gate replication monitoring and support. Performing regular Database switchover to ensure HA systems are intact. Performing patching of Oracle databases and cluster, including multitenant architecture. Monitor database performance using AWR, ADDM, OEM. Assist database and application teams in resolving connectivity issues through LDAP and Oracle Connection Manager (OCM) configurations. certificate renewals and application patching. Integrate Oracle Identity Cloud Service (IDCS) with refreshed non-production E-Business Suite for SSO regularly, and troubleshoot or resolve any user-related issues. MSSQL database support. IDCS redeployment for production applications during the application/database upgrades. On-call support for production incidents. Working with Oracle support for critical outages RCA and bug fixes. Collaborate with application teams, system admins to deliver database solutions Mentor junior DBAs and provide guidance on best practices, backup/recovery, and security protocols. Proven ability to learn quickly and adapt to new situations. Senior Consultant (DBA) at Oracle India Pvt Ltd. Hyderabad, India Client: COA, Oracle hosting (2016-2018) Installations, Upgradations and Administration of Oracle E-business Suite R12. * Applications, WebLogic and Oracle RAC database environments for Oracle Hosting projects support. Troubleshot issues by understanding issues, diagnosing root causes and coming up with effective solutions. Oracle Database performance management and tuning. Oracle Database migrations from on-prem to OCI. Database integrations and performance management. HA system implementation and management in on-prem and OCI. Database services monitoring and task management using OEM. Database replication solutions implementation using Golden Gate. Database and Grid patching. Identified key areas in need of improvement and implemented plans to rectify issues. Non-prod Cloning/refreshes from prod and maintenance activities like patching using Adop, adpatch, Opatch and all other Support Activities. L3 Support for COA Oracle Database and 11i Application and Database PROD/Non-prod environments. Database administrator at Intech Info solutions Pvt Ltd. Bangalore, India Client: Domino printing sciences, WoodGroup, Assurant (2012-2015) Installations, Upgradations and Administration of Oracle Database and Applications, WebLogic and Oracle RAC database environments for Oracle Hosting projects support. Troubleshot issues by understanding issues, diagnosing root causes and coming up with effective solutions. Support Multiple Database technologies like MSSQL, MySQL Oracle Database performance management and tuning. Database and Grid patching. Identified key areas in need of improvement and implemented plans to rectify issues. Non-prod Cloning/refreshes from prod and maintenance activities like patching using Adop, adpatch, Opatch and all other Support Activities. L3 Support for COA Oracle 11i Application and Database PROD/Non-prod environments. Education Master of Computer Applications: Computer Science Osmani University - Hyderabad, India Certifications Oracle Certified Professional Database Administrator. Oracle Cloud Infrastructure (OCI) 2025 Certified Multicloud Architect Professional. AWS Certified Solutions Architect Associate. Oracle AI Vector search certified professional. Keywords: continuous integration continuous deployment artificial intelligence user experience business intelligence hewlett packard microsoft mississippi procedural language