Errolito Lopez

A passionate software developer building web applications with Java/J2EE technologies

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About Me

Hello! My name is Errolito Lopez, and I'm a Java developer with over five and a half years of experience building high-performance applications.

I have extensive experience with Spring Boot, JPA/Hibernate, and microservices architecture. I am also proficient in front-end technologies like HTML, CSS, and JavaScript.

Featured Projects

Project 1 Screenshot
Department of Trade and Industries – Trade Statistics

A web application designed to visualize global trade statistics (exports and imports) by country.

Java Spring Boot Microsoft SQL Server Angular
Project 2 Screenshot
Department of Trade and Industries – Business Name Registration (BNRS)

A web application which modernized the business name registration process for the Department of Trade and Industries

OutSystems Microsoft SQL Server
Project 3 Screenshot
UnionBank of the Philippines – Generic Corporate Prepaid Card (Payroll System)

A web application designed to serve external corporate clients for managing their payroll processes.

Java Spring Boot React JS PostgreSQL
Project 1 Screenshot
Robinson’s Bank Motorcycle Inventory Management System

A web application that tracks motorcycle inventory across multiple locations, including stores and warehouses.

Java Spring Boot MySQL JavaServer Pages
Project 2 Screenshot
Capital Management System

A web application that managed customer deposits and withdrawals.

Java Spring Boot Apache FreeMarker MySQL
Project 3 Screenshot
Exchange Rate System

A web application that provided up-to-date cryptocurrency and fiat currency exchange data for business use.

Java Spring Boot Apache FreeMarker MySQL

Personal Projects

Project 2 Screenshot
DB2spring - Instant API Code Generator

Stop writing repetitive boilerplate code. This tool rapidly converts your SQL table definitions into a complete backend application (Spring Boot) instantly. It analyzes your CREATE TABLE statements and generates the full set of necessary layers—including data models, APIs, and business logic—all tailored to your preferences.

Java Spring Boot Angular

My Skills

Java
HTML, CSS, JavaScript
Spring Boot
JPA / Hibernate
RDBMS
Git

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