Kumar Gummula

• Serving as a trusted and strategic technical advisor for leading PSU banking clients, influencing architecture decisions, performance strategies, and risk mitigation plans for mission-critical Oracle environments with high availability and performance requirements.
• Delivered proactive performance tuning and optimization, leveraging AWR/ASH analysis, SQL tuning, and workload management, resulting in up to 20–30% reduction in database wait events and improved response times.
• Led RCA and resolution of critical production incidents, minimizing downtime and ensuring SLA adherence for Tier-1 applications like Core Banking Systems and UPI and other Non-CBS database environments.
• Successfully supported Oracle RAC, Data Guard, Exadata, ASM, RMAN and ZDLRA environments, ensuring stability, scalability, disaster recovery readiness.
• Spearheaded high-availability and disaster recovery strategies, ensuring zero/near-zero data loss (RPO/RTO compliance) through RAC, Data Guard, and DR drills.
• Played a key role in UPI RAC Go-Live and DR drills, ensuring seamless failover, application connectivity, and zero data loss scenarios.
• Played a pivotal role in Exadata and high-performance database environments, driving best practices for workload management, IO optimization, and system stability.
• Delivered RBI-compliant zero data loss architecture for UPI systems, achieving sub-minute failover and enterprise-grade high availability using Oracle MAA best practices.
• Implemented Oracle CSS recommendations leading to measurable improvements: Approx. 20% reduction in I/O waits through workload offloading to standby databases.
• Improved system stability by resolving recurring errors and tuning database parameters.
• Conducted Quarterly Service Value Reviews (SVR) and presented executive dashboards to CXO-level stakeholders, showcasing performance improvements, risks, and optimization opportunities.
• Collaborated with Oracle Global Support, ACS, and Engineering teams to resolve complex issues and drive product-level fixes and patch recommendations.
• Streamlined monitoring, alerting, and audit mechanisms (AVDF), reducing alert noise by 30–40% and improving incident response efficiency.
• Led enterprise-scale Exadata transformation and RAC expansion programs for top-tier banks, delivering zero-downtime infrastructure modernization with measurable improvements in scalability, performance, and system resilience.
• Successfully led on-prem to OCI Exadata Cloud@Customer migration, combining deep database expertise, cloud architecture knowledge, and performance engineering to deliver transformational improvements in performance and scalability.
• Provided strategic guidance on patching, upgrades, security hardening, and architecture best practices, ensuring compliance and operational excellence.
• Strengthened customer relationships by conducting governance calls and delivery reviews to address risks.
• Initiated engagement strategies to generate customer interest in cloud, data security, and AI offerings.
• Manage senior customer relationships ensuring frictionless delivery and high satisfaction index.
• Played a key role in multiple projects RFP, SOW creation, and efforts estimation.
• Generate qualified leads and work closely with Sales, Solution Engineering, and Delivery teams for conversions.
• Proven track record in handling large-scale, high-pressure environments and delivering measurable performance and stability improvements.
• Recognized as a trusted CXO advisor, combining deep technical expertise with strategic leadership to drive cloud adoption, scalability, resilience, and operational excellence across high-volume banking systems.
• Mentorship & Capability Building: Mentored DBAs and vendor teams, enhancing their capabilities in performance tuning, RCA analysis, and Oracle best practices.
• Conducted knowledge-sharing sessions on AWR analysis, RAC performance, and HA/DR architectures.
• Delivery Governance & Team Handling: Provided technical oversight to multi-vendor teams, ensuring quality delivery and adherence to SLAs across critical systems.
• Acted as single point of accountability for customer success, aligning internal Oracle teams (ACS, Support, Engineering) with customer priorities.
• Crisis & War Room Leadership: Led war room calls during high-severity incidents, driving structured troubleshooting, stakeholder communication, and resolution tracking.
• Established standard RCA frameworks and incident response practices, improving resolution time and preventing recurrence.
• Customer Relationship & Trust Building: Built strong relationships with CXOs, Bank teams, DB teams, and application owners, becoming a go-to advisor for strategic and operational decisions.
• Improved customer satisfaction through proactive engagement, risk identification, and continuous service improvement.
• Conducted regular account reviews to assess performance and strategy.
• Collaborated with sales teams to identify new business opportunities.
• Developed customer relationships, identified customer needs and provided technical solutions.
• Provided product demonstrations to customers in order to educate them on the features and benefits of products.
• Reviewed and analyzed contracts, service issues and other information to initiate and direct appropriate action to resolve.
• Monitored customer feedback via surveys or direct contact in order to identify areas for improvement or additional training requirements.
• Managed multiple accounts simultaneously while meeting deadlines for each one.

Exadata Projects Lead as TAM:

Led multiple large-scale Exadata transformation programs for leading banking clients, including:

• Axis Bank: X8 to X9 Compute (RAC expansion) and Cell Node merger across DC & DR environments from 2-node to 4-node cluster.
• Bank of Baroda: X7 to Compute (RAC expansion) and Cell Node merger across DC & DR environments from 2-node to 4-node cluster.

Key Contributions & Achievements:

• Drove end-to-end planning, execution, and delivery of complex Exadata upgrades and mergers, ensuring zero/near-zero downtime for mission-critical banking systems (Operational Data Store (ODS) and Data Warehouse (DWH)).
• Executed compute and storage layer transformations, including:
• Integration of new cell nodes into existing Exadata racks
• Creation and configuration of Celldisks, GridDisks, FlashCache, and FlashLogs
• Seamless addition of storage into ASM disk groups (DATA, RECO, ACFS)
• Led RAC cluster expansion and node addition activities, including:
• Grid Infrastructure and DB Home extension using addnode.sh
• Scaling environments from 2-node to 4-node RAC clusters
• Adding new database instances and validating cluster services
• Performed deep pre-validation and readiness checks, including:
• CLUVFY assessments, peer compatibility checks, and OS/kernel validation
• Database health validation (RAC, Data Guard, ARCHIVELOG configurations)
• Exadata image consistency verification across nodes
• Standardized cluster-wide configurations, ensuring consistency across all nodes.
• OS users, groups, permissions, Oracle Homes (GI/DB)
• Network configuration (InfiniBand – ib0/ib1, bonding, routing)
• NTP synchronization to maintain RAC stability
• Resolved complex technical challenges during execution, including:
• Oracle binary permission issues (INS-32156)
• Node addition failures and inventory inconsistencies
• Network and interconnect configuration mismatches
• Led storage rebalancing and performance stabilization activities, including:
• Monitoring long-running ASM rebalance operations (~68 hours)
• Ensuring minimal impact to production workloads during data redistribution
• Implemented and upgraded Oracle Autonomous Health Framework (AHF), TFA, and Exachk, enabling proactive monitoring and faster diagnostics across clusters
• Conducted end-to-end validation across database, ASM, Clusterware, and network layers, ensuring.
• Stable RAC operations
• Seamless Data Guard synchronization (DC–DR)
• Production readiness with no business disruption

Leadership & Delivery Impact:

• Acted as overall technical lead and single point of accountability for multi-phase Exadata transformation programs.
• Led war-room calls and coordinated across cross-functional teams (Bank team, Network, DBA team).
• Established structured execution, troubleshooting, and RCA frameworks, improving delivery efficiency and reducing risk.
• Successfully delivered high-risk infrastructure changes in 24x7 banking environments, strengthening customer trust and positioning Oracle as a strategic transformation partner.

Business Outcome:

• Enabled significant capacity expansion and performance scalability for high-volume banking workloads.
• Improved system stability, reliability, and operational efficiency.
• Delivered future-ready Exadata architecture aligned with Oracle MAA best practices.

Exadata X7 On-Prem to ExaCC X11 Migration
Customer: State Bank of India (Proactive Risk Management (PRM Dept.), DC & DR)

· Led end-to-end migration of mission-critical PRM database from on-prem Exadata X7 On-Prem to Oracle Exadata Cloud@Customer (X11) across DC & DR environments.

· Drove OCI-based database transformation, including Grid Infrastructure setup, DB Home creation, patching, and RAC configuration.

· Executed secure database migration using RMAN restore from service and Data Guard setup, ensuring data integrity and encryption (TDE compliance).

· Orchestrated cloud database provisioning using dbaascli, configuring ASM, security policies, auditing, and backup frameworks.

· Conducted Oracle Real Application Testing (RAT) to validate production workload, achieving:

· ~75% reduction in DB time

· ~74% reduction in I/O waits

· ~82% improvement in CPU efficiency

· Led resolution of critical migration blockers, including GI pre-check failures, ASM compatibility issues, DBCA errors, and OCI agent failures.

· Ensured seamless Data Guard synchronization and DR readiness post-migration.

· Delivered zero/near-zero downtime migration, enabling improved performance, scalability, and cloud readiness for PRM workloads.

· Collaborated with Oracle Cloud, DBA, and infrastructure teams, driving execution through structured governance and war-room coordination.

HA/MAA NDR Standby Setup:

Customer: Union Bank of India

· Led implementation of MAA-aligned 3-tier Standby database architecture (DC–NDC–DR) for UPI production systems, ensuring RPO ≈ 0 and optimized RTO for RBI compliance.

· Designed and executed SYNC redo transport (LGWR SYNC NOAFFIRM) between DC and NDC, enabling zero data loss architecture.

· Enabled Flashback Database across all environments, ensuring rapid primary database reinstatement and minimal recovery time.

· Conducted network performance validation using oratcp, achieving ~4 MB/s throughput and

· Successfully executed planned switchover and switchback operations, ensuring seamless role transitions and application continuity.

· Performed failover testing under simulated failure scenarios, achieving:

• Zero data loss (RPO = 0)

· Ensured automatic DR synchronization and redo consistency post-failover, maintaining data integrity across all sites.

· Tuned Data Guard parameters (NET_TIMEOUT, REOPEN, ALTERNATE destinations) and validated Maximum Availability protection mode.

· Led end-to-end validation of database, network, and application layers, ensuring production readiness and regulatory compliance.

· Coordinated across DBA, application, network, and Oracle ACS teams, driving execution through structured governance and war-room calls.

• Currently working as a technical consultant for my customer S&P Dow Jones Indices. In this role, I act as a liaison between the stakeholders, i.e.: customer’s management, technical team and leadership at Datavail InfoTech.
• Coordinated training and updates for customer service teams on new product releases, ensuring team equipped with knowledge to enhance customer value propositions.
• Oversee database server tuning, application tuning, maintaining documentation, capacity planning and database security.
• Facilitated periodic client governance meetings and reports to inform clients on project status, delivery challenges, and metrics.
• Engineering and administration of Oracle standalone and RAC clustered (11g, 12c, 18c and 19c) database environments.
• Managed performance tuning and troubleshooting to maintain optimal system operation.
• Expertise in Oracle RAC & ASM Administration/Installation and proficient knowledge in RMAN, and Data Guard.
• Installed, setup, configured the latest 13.5 OMS i.e.: Multi-OMS environment.
• Applied the latest RU patches in 13.4 and 13.5 OMS_HOME.
• Managed basic Golden Gate administration to support one-way GG replication processes.
• Reorganized databases and sized database objects to meet standards and improve performance.
• Perform crisis management during high-severity operational incidents.
• Following the problem management, change management and service management processes.
• Skilled in identifying & implementing industry best practices, strategies and processes to support a best-in-class service experience.
• Participate on-call during peak database end of the day processing in off hours for S&P Dow Jones Indices for EST/IST and Sydney region, to make sure there is no priority 1 issue and after-hours trading work is processed and completed successfully.

• Oracle 11g AWS Cloud databases upgrades – upgraded 6 databases simultaneously with minimum downtime.
• Upgrading Production/QA and Dev databases from 9i, 10g to 11g/12c/19c version.
• Handled critical database migration activities from 10g to 11g version.
• Led Level 3 database transition between onshore (U.S) and offshore (India) DBA teams, ensuring seamless knowledge transfer.
• Trained Level 2 team in India after completing the database transition from onshore and offshore client dba team.
• Executed daily deployment tasks and participated in performance tuning activities to optimize database efficiency.
• Installed and created 12c software and databases on Linux, Solaris and on Windows.
• Installed and configured 12c Cloud Control.
• Installed and deployed the management agent on single and multiple target hosts from within 12c Cloud Control.
• Applied the latest 12c Grid Infrastructure Database PSU patches on different database homes in RAC environment in rolling method.
• Documented daily activities and provided guidance to Level 2 DBA team to ensure adherence to database processes.

• Applied latest 11g Grid Infrastructure Database PSU patches on different database homes in RAC environment in rolling method.
• Implemented two nodes 10g and 11g RAC on Red Hat Linux with VMware on Windows.
• Developed SOP for troubleshooting clusterware issues during node eviction or server reboot to streamline incident response.
• Downgrade 11.2.0.4 version database to 11.2.0.3 version on windows.
• Configured ASM, migrated databases from NON-ASM to ASM and cloned database in asm environment.
• Converting Single Instance database to RAC database Instances.
• Converting RAC database Instances to Single Instance database.
• Configured RAC in oracle 10g.
• Adding and deleting nodes from RAC environment.
• Utilized shell scripting to streamline processes and enhance efficiency in database administration.
• Upgrading Production/QA and Dev databases from 9i, 10g to 11g version.
• Installed agent software on database servers to facilitate monitoring and management.
• Patching databases using OPatch utility.
• Cloning Using RMAN.
• Configured 11g Active Standby database using 11g RMAN DUPLICATE FROM ACTIVE DATABASE feature.
• Setting up DR Physical and Logical standby database and managing the same.
• Performing de-fragmentation and purging activity.
• Performed switchover and switchback in manual and managed recovery mode.
• Installing Oracle software on Linux, Solaris, HP-Unix, VMware/Oracle Virtual Box & Windows platform.
• Creating of Oracle Database on Linux, Solaris, HP-Unix and Windows platform.
• Bouncing database and listener.
• Setting Up and Testing the RMAN Backups.
• Scheduling backups in crontab(Linux) and scheduled task(windows).
• Verifying scheduled user managed & rman backups.
• Creating Schemas and Working with Privileges, Profiles and Roles.
• Monitored and managed logical and physical structures, including tablespaces and datafiles, to ensure optimal database performance and growth.
• Proper investigation regarding ORA-07445 and ORA-600 with the help of metalink.
• Creation and working on various issues of materialized view.
• Proactively Monitoring file system growth, Alert Log and Archive Destination.
• Performing full database, schema and table level export and import and datapump (Expdp and Impdp).
• Execution of Scripts on Quality and Production databases.
• Creating DB Links in oracle database 10g and 11g and configuring them with SQL and MySQL databases.
• Managed network configurations and troubleshot connectivity issues to maintain system integrity.
• Manually database failover in Windows server.
• Create and manage tablespaces, indexes, and physical storage structures like data files, redo logs, archive logs. Allocate and manage logical storage structures like tablespaces, schemas and extents.
• Creating the SOPs for the repetitive tasks.
• Troubleshooting and maintaining Database issues of users.
• Loading Data Using Oracle utility SQL-Loader.
• Query tuning using TKProf utility (Trace Kernel Profile) & Explain Plan Table for finding query statistics/performance.
• Explain Plan for SQL tuning, AWR, Statspack.
• Strong analytical and problem-solving skills with the ability to work within a team environment and independently when needed.
• Conducted in-depth analysis to resolve complex production issues and identified root causes to prevent recurrence.
• Working with Oracle support for Critical Production issues and creating and following up the SR’s.
• Monitoring and coordinating Database/Application Outages.
• Monitored activities to ensure compliance with client SLAs.
• Mentoring other team members.
• Formerly Stratavia Infotech Pvt. Ltd.

• Tracked oracle, sql, and MySQL database alerts generated in ConnectWise.
• Followed up on alerts with DBAs via email and phone to ensure timely resolution.
• Informing oracle and sql team regarding alerts from oracle, sql and MySQL servers generated in Salesforce and ConnectWise (Ticketing system).
• Keeping track of each oracle, sql and MySQL database alerts getting generated in ConnectWise.
• Following up on all the alerts with DBAs through emails and calls.
• Communicated with clients to address and resolve connectivity issues.
• Escalating Oracle, Sql and MySQL database issues to on-call, primary or secondary dbas.
• Communicating with clients for any connectivity issues.
• Managed client calls from US.
• Monitoring Data Palette server (Unix) – Oracle, SQL, and MySQL monitoring servers (Data Palette – Monitoring tool).
• Formerly Extraquest Infotech Pvt. Ltd.