Jeffrey Bellen

Programmer Analyst with 6+ years of experience in software development and production support, specializing in Oracle APEX, Oracle PL/SQL, and enterprise application support, with proven strengths in system enhancements, performance optimization, incident management, service reliability, SDLC delivery, and stakeholder coordination.

IT Programmer Analyst – Assistant Manager at Metropolitan Bank & Trust Company (Metrobank) (2024-01 – Present)

• Designed and implemented system enhancements for enterprise applications using Oracle APEX and PL/SQL.
• Strengthened integration capabilities through hands-on Oracle Integration Cloud (OIC) development
• Resolved production defects and optimized high-cost SQL queries to improve system performance and stability.
• Served as Officer-in-Charge (OIC) Development Lead, overseeing deliverables and guiding team members on SDLC best practices.
• Led service reliability initiatives for applications experiencing recurring downtime and performance issues.
• Coordinated Root Cause Analysis (RCA) and recovery timelines with business units after system disruptions.
• Authored and reviewed Application Roadmaps, Business Continuity Plans, and Service Transition documents.

IT Programmer Analyst – Junior Assistant Manager at Metropolitan Bank & Trust Company (Metrobank) (2020-01 – 2024-12)

• Developed enhancements and implemented production fixes for applications built on Oracle APEX and PL/SQL.
• Supported and maintained 12 production applications including ManageEngine, SharePoint, VB.NET systems, and Oracle APEX applications.
• Ensured timely restoration of disrupted systems within SLA requirements.
• Utilized Git and Jira for version control and change management.

ITG Management Trainee at Metropolitan Bank & Trust Company (Metrobank) (2019-01 – 2020-12)

• Developed a Proof of Concept (POC) application using Java, Spring Boot, and PostgreSQL.
• Focused on backend development and implementation of automated JUnit testing.

Bachelor of Technology in Computer Engineering Technology – Technological University of the Philippines – Taguig

Secondary Education – Western Bicutan National High School