John Tab

Full-Stack Developer experienced in designing, developing, modernizing, and maintaining enterprise applications using Laravel, React JS, C# .NET WinForms, VB.NET, SQL Server, and MySQL. Experienced in delivering POS, back-office, inventory management, HR, healthcare, and business applications. Proven ability to modernize legacy systems, develop RESTful APIs, optimize databases, and deliver scalable software solutions.

Systems Developer at Phoenix Petroleum Philippines Inc. (2026-01 – 2026-09)

Laravel 12, React JS 18, TypeScript, Zustand, AWS Services

• Design and develop the Retail Pricing / Wet Stock Management System (RPS/WSM).
• Participate in system architecture, code reviews, database optimization, and production deployments.

IT Consultant - Application Developer at Phoenix Petroleum Philippines Inc. (2023-03 – 2025-12)

C#,.NET WinForms, EF Core 3.1, Laravel 7/8/10, React 17, React Query, MySQL, SQL Server, IIS, AWS Services

• Enhance and support the Helpdesk Ticket Tracking System.
• Continued to develop and maintain the HR Attendance Management System using QR Code until production.
• Maintained POS, Back Office, and Head Office systems.
• Developed inventory tracking and stock movement modules and enhanced reporting capabilities.
• Supported business-critical applications and resolved production issues.

Microsoft C# Developer at Action. Able Inc. (2020-07 – 2023-02)

C#,.NET WinForms, EF Core 3.1, Laravel 7/8, MySQL, SQL Server, IIS

• Developed and maintained the FamilyMart POS System.
• Built C# console applications to synchronize POS and Head Office data.
• Improved performance, stability, and scalability; performed code reviews, debugging, testing, and feature enhancements.

Programmer Lead at Cindy's Bakery and Restaurant (2015-12 – 2020-06)

C#, ASP.NET Web API, WCF, Core PHP (Legacy), CodeIgniter 3, VB6, VB.NET, MySQL, MS SQL Server, SSRS

• Spearheaded the modernization roadmap and led the migration of legacy VB6/VB.NET desktop applications to maintainable C# WinForms applications.
• Designed and developed custom online ordering and delivery management portals using legacy Core PHP architecture.
• Architected an internal ticketing system in Core PHP and modernized it into CodeIgniter 3.
• Developed scalable ASP.NET Web APIs for real-time data synchronization between distributed POS stores and main/head office.
• Created Report Server (SSRS) for Head Office reports, pulling data for daily, weekly, and monthly sales reports including slow and fast moving products.

MS Access Developer at Data Stream Solutions GmbH (2014-01 – 2015-05)

MS Access, C#, VB.NET

• Built automated business intelligence and custom reporting tools to simplify complex data entry and reporting workflows.

Junior Java / FoxPro Programmer at Z Getcare Systems Inc. (2011-03 – 2014-03)

Java/J2EE, Hibernate, PostgreSQL, Visual FoxPro, JasperReports, JSP, Struts, PHP

• Created a Time Management System in Visual FoxPro.
• Maintained and converted legacy desktop applications to web-based Java applications (J2EE, Hibernate, JSP).
• Created and designed JasperReports for fast, dynamic report output across web application sites.
• Built an assessment test page that generates scores based on user input.
• Maintained and enhanced company web applications and created client-requested reports.
• Experience in HTML, JavaScript, jQuery, and PostgreSQL SQL scripting.

IT Programmer at Aderans Philippines Inc. (2010-01 – 2011-01)

VB.NET, MS Access, MS SQL Server

• Maintained Time & Attendance systems for payroll integration and supported manufacturing plant IT operations.

BS in Computer Science – Systems Technology Institute (STI), Tarlac City (2001 – 2008)