Oracle Database

Enterprise-Scale Data Persistence

My experience with Oracle Database comes from its use as the backend for SIKKA, the large-scale HR systems at the Directorate General of Taxes (DJP). This project exposed me to a true enterprise-grade database environment.

With over 7 years of experience working with Oracle Enterprise Database, I've developed comprehensive skills in both database administration and development. Beyond application integration, I've been deeply involved in the core database management aspects, including performance optimization, security hardening, and complex data structure design for enterprise-scale systems.

Key Competencies

• Database Administration: Extensive experience with tablespace management, user/role-based access control (RBAC), database security configurations, and overall Oracle DB administration.
• Advanced SQL & PL/SQL: Development of complex queries utilizing partitions, materialized views, analytical functions, and other advanced Oracle features.
• Performance Optimization: Expertise in query optimization, execution plan analysis, indexing strategies, and database tuning for maximum efficiency.
• High Availability Solutions: Implementation of Oracle's reliability features including scheduled jobs, backup and recovery procedures, and data replication.
• Enterprise Integration: Experience integrating Oracle Database with various enterprise systems, including its use as a persistence layer for PHP/Symfony applications via Doctrine ORM.
• Security Implementation: Configuration of Oracle security features, auditing, encryption, and compliance with enterprise security standards.
• Data Architecture: Design of efficient database schemas, stored procedures, and triggers for complex business requirements.