Sumit Singh

About Sumit Singh

Oracle Certified Professional (OCP 19c) with 3 years of experience managing mission-critical Oracle databases across Production, UAT, and Development environments.I specialize in High Availability (RAC), Disaster Recovery (Data Guard), RMAN backup & recovery strategies, performance tuning using AWR/ADDM/ASH reports, and CPU/RU patching aligned with ITIL change management practices.Currently working at Accenture, supporting enterprise-scale environments with 99.9% uptime. Experienced in Oracle 11g/12c/19c/23ai, OCI database provisioning, Azure SQL migrations, database cloning, and automation using Shell scripting.Key Strengths:• Oracle RAC & ASM Administration• Data Guard Configuration (Switchover / Failover / DR Drills)• RMAN Backup & Recovery Validation• Database Performance Optimization• CPU/RU Patching & Upgrades (12c → 19c)• Production Incident Handling (P1/P2)• Capacity Planning & Space Management• Automation & Health Check MonitoringI am actively looking to grow into Oracle DBA roles in Big4 and enterprise environments where I can contribute to high-availability architecture and cloud transformation initiatives.Let’s connect and build scalable database systems.

Experience

1. Application Development Analyst

   Accenture in India

   Nov 2025 — Present · Gurugram, IN

   1) Administering Oracle 11g/12c/19c/23ai databases across Production & Non-Production environments ensuring 99.9% availability.2) Provisioned multiple Oracle databases via OCI Console including compute, storage, networking, and backup configuration.3) Managing Oracle RAC & ASM environments to ensure high availability and optimized performance.4) Configured and maintained Oracle Data Guard (Physical Standby), performing DR drills, switchover, and failover testing.5) Designed and validated RMAN backup strategies (Full, Incremental, and Archivelog) ensuring reliable recovery processes.6) Applied quarterly CPU/RU patches following ITIL-based change management and compliance standards.7) Migrated databases from Oracle 12c to 19c with minimal downtime and zero data loss.8) Analyzed AWR/ADDM/ASH reports and improved query response time by 20–25% through performance tuning.9) Automated routine DBA activities using shell scripting, reducing manual effort by 30%.10) Performed database cloning and cross-environment migrations using RMAN and Data Pump utilities.11) Conducted capacity planning and proactive tablespace monitoring, preventing storage-related production outages.12) Prepared detailed RCA documentation for critical P1/P2 incidents aligned with ITIL processes.

Education

• Rani Laxmi Bai Memorial School (R.L.B.)

  AISSCE, Senior secondary

• Lovely Professional University

  Bachelor's degree, Computer Science

• Rani Laxmi Bai Memorial School (R.L.B.)

  AISSC, Secondary School