Thiwanka Senarathna
Oracle Database Engineer
Passionate about Oracle database technologies, cloud infrastructure, and sharing practical knowledge with the database community through real-world technical content.
Core Expertise
A strong technical foundation across Oracle platforms, cloud systems, middleware administration, and enterprise support.
Oracle Database Administration
Hands-on experience in Oracle database administration, backup and recovery, monitoring, patching, upgrades, and performance tuning.
Oracle E-Business Suite
Strong Oracle EBS experience across 12.1.x to 12.2.x, including cloning, patching, upgrades, and environment support.
Cloud and Infrastructure
Practical OCI experience with migrations, VCN setup, cloud deployments, and enterprise database support in Linux-based environments.
High Availability and DR
Experience with Oracle RAC, Data Guard, disaster recovery planning, and stable production support for critical systems.
Professional Journey
Mar 2024 – Present
Engineer – Database and Middleware
iOM Philippines Inc
- • Manage full Oracle Apps DBA operations.
- • Lead EBS 12.2 upgrades and Oracle 19c migrations.
- • Implement Oracle APEX health monitoring and ECC support.
- • Handle WebLogic patching, cloning, CPU patching, and proactive monitoring.
Jan 2023 – Aug 2024
Engineer – Database and Middleware
MITESP Pvt Ltd, Sri Lanka
- • Supported Oracle DB upgrades in RAC environments.
- • Implemented disaster recovery solutions for critical databases.
- • Worked on OCI deployments, VCNs, and WebLogic patching.
- • Provided enterprise support for banking and insurance environments.
Apr 2020 – Jan 2023
Technical Consultant
DMS Software Technologies, Sri Lanka
- • Managed Oracle EBS upgrades, cloning, CPU patching, and DB upgrades.
- • Developed and maintained Oracle EBS and Oracle Cloud reports.
- • Performed SQL, OS, application, and database tuning.
- • Supported code migrations, SR handling, and backup/recovery solutions.
Mar 2019 – Feb 2019
Earlier Technical and Programming Roles
Melsta Technologies / DMS Software Division
- • Supported end-to-end Oracle Apps DBA operations.
- • Worked with Oracle Forms, Reports, PL/SQL, and database environments.
- • Automated backup and recovery tasks and supported performance optimization.
Certifications
Oracle Database@AWS Certified Architect Professional
Oracle Cloud Infrastructure 2025 Certified Data Science Professional
Oracle Cloud Infrastructure 2025 Migration Architect Certified Professional
Oracle Cloud Infrastructure 2025 Certified DevOps Professional
Oracle AI Autonomous Database 2025 Certified Professional
Oracle Data Platform 2025 Certified Foundations Associate
Oracle AI Cloud Database Services 2025 Certified Professional
Oracle Cloud Infrastructure 2025 Certified Multicloud Architect Professional
MySQL HeatWave Implementation Certified Associate Rel 1
Oracle Certified Professional, MySQL 8.0 Database Administrator
Oracle AI Vector Search Certified Professional
Oracle APEX Cloud Certified Developer Professional
MongoDB Associate Database Administrator
Project Management
Oracle Cloud Infrastructure 2024 Certified Architect Associate
Education
BSc (Hons) Computing
Wrexham Glyndŵr University
Bachelor of Technology in Software Technology
University of Vocational Technology