Peniel Charles

Oracle Database Administrator with 3.3 years of experience in managing Production, Development, and UAT databases. Hands-on expertise in Oracle 12c/19c, RAC, ASM, RMAN, Data Pump, AWR/ASH performance tuning, patch management, and disaster recovery. Skilled in Shell scripting automation, Linux administration, and cloud technologies with practical experience in AWS, Terraform, Docker, Kubernetes, and Data Lake solutions.

Strong analytical and troubleshooting skills with a focus on database availability and infrastructure automation

DEVOPS INTERNSHIP at Besant Technologies (2025 – 2026)

6 Months Internship

• Built CI/CD pipelines using Code Pipeline, CodeBuild, and CodeDeploy.
• Created Docker containers and Docker files.
• Implemented AWS Budget Alerts using Budgets, SNS, Lambda, and SES.
• Built AWS Data Lake using S3, Glue, Athena.
• Gained hands-on experience with Kubernetes fundamentals and container orchestration concepts.

Oracle Database Administrator at 3i Infotech (2023-03 – Present)

• Provided 24x7 DBA support, ensuring 99.9% uptime across production and development databases.
• Automated routine maintenance (index rebuilds, alert log checks) using Shell scripts and crontab, reducing manual effort by 40%.
• Performed RMAN and Data Pump (expdp/impdp) backups and restores, achieving zero data loss during migrations.
• Analyzed AWR/ASH reports and tuned SQL queries, improving performance by 25% for key business applications.
• Implemented automated tablespace monitoring and alerting, reducing critical storage alerts by 40%.
• Supported Grid Infrastructure and Database patching, including validation through OCI Console.
• Optimized Oracle Goldengate replication, reducing lag from hours to minutes and improving sync efficiency by 35%.
• Conducted disaster recovery drills in Oracle Cloud Infrastructure (OCI) to validate business continuity.
• Created new TEMP tablespace, migrated users, and dropped old TEMP tablespace to reclaim storage and improve performance
• Collaborated with system teams for ASM storage expansion and space optimization.
• Led ASM storage expansion and optimization, improving utilization by 30% and eliminating storage bottlenecks.