Bharat Kumar

Oracle Database Administrator with 4+ years of experience designing, securing, and operating mission-critical Oracle database platforms in banking and fintech environments. Hands-on experience with Oracle RAC, Data Guard, GoldenGate, high-availability architecture, disaster recovery, and performance tuning at scale. Led database upgrades, automated DBA operations using Ansible and shell scripting, and supported analytics workloads without impacting production.

Experienced in capacity planning, access governance, and managing Production, DR, UAT, and Development environments.

Oracle Cloud

Infrastructure and AWS certified.

Database Administrator - Airtel Payments Bank

(2025-02)

• Managed 30+ mission-critical Oracle Enterprise databases supporting payment processing, banking transactions, and reporting across Production, DR, UAT, and Development environments while maintaining high availability and SLA compliance.
• Designed and automated database patching workflows using Ansible, cutting manual patching effort by ~70% and ensuring consistent, error-free deployments across environments.
• Engineered archival databases using Oracle Hybrid Columnar Compression (HCC), significantly reducing storage consumption and improving long-term data lifecycle management.
• Managed reporting databases supporting analytics workloads without impacting production transaction systems.
• Led troubleshooting and resolution of Oracle GoldenGate replication issues across Production, SIT, and UAT environments, ensuring data consistency and keeping migration and testing timelines on track.
• Led end-to-end Oracle 12c to 19c upgrades and DB segregation migrations across standalone and RAC environments, coordinating with multiple application teams to minimise downtime and risk.
• Monitored and managed ASM disk groups, tablespaces, and capacity across three data centres, supporting 99.9%+ uptime against growing transaction volumes.
• Enhanced monitoring and alerting for standby sync, storage thresholds, and DR readiness to improve incident response and disaster preparedness.
• Reviewed and optimised DDL and schema changes across 400+ Jira requests, ensuring database stability, performance, and long-term scalability.
• Owned database operations across Prod, DR, UAT, and DEV environments, maintaining environment parity and supporting smooth release cycles.
• Collaborated with infrastructure, middleware, application, and release teams during database upgrades, patching, and production deployments to ensure successful delivery within maintenance windows.

Database Administrator - Nehish Software Solutions Pvt. Ltd

(2022-06 - 2025-02)

Client: Airtel Payments Bank

• Installed and configured Oracle Database and Grid Infrastructure, supporting both standalone and RAC database environments.
• Created and maintained Oracle Data Guard physical standby databases, performing planned switchovers, disaster recovery validation, and failover readiness activities.
• Upgraded standalone and RAC databases by applying patches and version updates to maintain stability and security.
• Managed RMAN backup and recovery operations across production and DR environments.
• Managed database migrations and data movement using Data Pump, including schema, table, and sequence migrations across environments.
• Automated routine DBA operations such as backups, standby sync checks, password expiry, and tablespace monitoring using shell scripts and cron, and resolved related alerts proactively.
• Managed database user access and security, creating users, roles, profiles, and database links to provide controlled and compliant data access.
• Implemented database hardening measures and maintained audit configurations to meet compliance and access governance requirements.

Data Analyst - LIDO Learning

(2021-10 - 2022-05)

• Built dashboards and SQL-driven reports for sales, HR, and operations teams, translating business requirements into structured datasets.
• Performed ad-hoc analysis using SQL and spreadsheets, supporting stakeholders with data validation, trend analysis, and performance tracking.

B.Tech - National Institute of Technology, Uttarakhand (2021)