Olayinka Olajolo
@olayinkaolajolo
Senior Database Engineer focused on high-availability Oracle and cloud data systems.
What I'm looking for
I’m a seasoned Senior Database Engineer with 9+ years of hands-on experience managing mission-critical database environments across on-premises and cloud platforms. I specialize in administering Oracle RAC, Oracle ASM, and Oracle Exadata while maintaining high availability with Oracle Data Guard and real-time replication using Oracle GoldenGate.
I strengthen reliability and performance through RMAN Backup & Recovery, structured troubleshooting, and performance diagnostics using AWR and ADDM. I also apply SQL tuning and execution plan analysis (including Explain Plan and SQL Trace) to keep systems efficient for production workloads.
In cloud and hybrid environments, I support scalable operations on AWS RDS and Oracle Cloud Infrastructure (OCI), including monitoring and observability with Prometheus, Grafana, and AWS CloudWatch. I’ve also led modernization efforts such as Oracle-to-PostgreSQL migration using AWS DMS, with a focus on minimizing downtime and ensuring data integrity.
I bring automation and governance to daily operations by scripting with Shell and Python, and using tools like Ansible and Terraform to reduce manual overhead. I’m equally comfortable implementing secure database environments—covering encryption, access controls, auditing, and compliance alignment—so performance improvements never come at the expense of trust.
Experience
Work history, roles, and key accomplishments
Administer Oracle 12c/18c/19c databases in RAC and ASM environments, maintaining availability, stability, and performance. Implement and manage Data Guard and GoldenGate for high availability, disaster recovery, and real-time replication, while automating DBA tasks and tuning performance.
Managed Oracle 11g/12c/19c databases in RAC environments and designed Data Guard standby databases for disaster recovery readiness. Led Oracle-to-PostgreSQL migration using AWS DMS and improved performance and observability through AWR/Statspack/SQL Trace and Prometheus/Grafana/AWS CloudWatch.
Database Administrator
Epsilon
Nov 2016 - Mar 2020 (3 years 4 months)
Administered Oracle 10g/11g databases on Linux/Unix and implemented RMAN-based backup and recovery strategies for data protection. Monitored performance using AWR/ADDM, managed security and audit/encryption controls, and supported Data Guard setup and database migration/upgrade activities.
Education
Degrees, certifications, and relevant coursework
OscotechUniversity
Bachelor of Science in Accounting, Accounting
Earned a BSc in Accounting from OscotechUniversity. Specific study dates are not provided.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Social media
Job categories
Skills
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