Currently leading the modernization of a legacy school management system. Implementing hexagonal architecture using Java, Spring Boot, Maven, and PostgreSQL. Migrating student and grading management modules. Developing new backend and frontend features with Angular, including a payments support module. Applying software development best practices.

Developed a microservice application with hexagonal architecture for generating regulatory reports for the Ecuadorian Superintendence of Banks. Implemented backend using Spring Boot, Maven, and SQL Server. Performed data migration analysis for regulatory reporting structures. Developed frontend using Angular, TypeScript, and Bootstrap.

Participated in the strategic IESS–Biess technology separation project, working on credit applications. Refactored and modernized legacy Java applications, including migration to Java 8. Implemented Oracle database changes to ensure data access independence and consistency. Resolved technical issues and security vulnerabilities using best practices and quality tools (SonarQube, PMD). Performed unit and integration testing to assure the implemented changes. Provided active collaboration and technical mentoring.

Developed and maintained enterprise applications using Java, Spring Boot, Maven, SQL Server, and Oracle. Implemented dynamic database connection mechanisms at runtime. Resolved security vulnerabilities identified by Fortify, BitSight and Qualys, and reported in Penetration Tests. Ensured compliance with OWASP Top 10 across backend and frontend applications. Migrated legacy technologies, e.g., from JSP/Tiles to Thymeleaf. Implemented HTTP security headers (CSP, etc.) at both app and server level (Tomcat, Nginx, F5). Supported security assessment of Service Mesh architecture in GCP. Delivered internal training on Java and Spring Boot to development teams.

Implemented migration from monolithic architecture to microservices, improving scalability and maintainability. Developed microservice applications using Java, Spring Boot, Maven, and Oracle. Implemented unit testing using JUnit and Mockito, covering complex scenarios for several applications. Integrated applications with CI/CD pipelines (Jenkins) and enforced quality with SonarQube. Resolved security vulnerabilities identified by Fortify. Key Achievements: Designed Redis-based caching solution, reducing response time by ~99% for high-volume data requests. Implemented data compression mechanisms, reducing payload size by ~92%. Mentored developers on unit testing development. Reporting & Data Migration: Migrated data retrieval mechanisms for reports, from SOAP to REST across web apps (ASP.NET) and ETL pipelines (SSIS). Developed reusable C# and SQL Server ETL components for JSON-based data handling. Optimized stored procedures by replacing cursor-based logic with temporary tables, improving performance by ~60%.

Courses: Object-Oriented Programming (OOP), Data structures, Software Requirements Engineering.

Courses: Logical and Mathematical Reasoning.

Courses: Linear Algebra, Precalculus, Trigonometry. Graduate courses: Telecommunication Systems Assessment, Advanced Internet Applications and Services.

Developed enterprise web applications using ASP.NET, VB.NET, C#, and SQL Server. Designed and developed SSRS reports with complex T-SQL stored procedures. Delivered solutions for industries including Oil & Gas, Food, and Healthcare. Developed reusable JavaScript (jQuery) components for dynamic UI behavior.

Worked with a mid-level software engineer to design and develop web and desktop applications using .NET (C#, VB.NET). Developed a Sales Decision Support System (DSS) integrating multiple legacy data sources. Developed ETL processes (T-SQL, DTS) to consolidate enterprise data. Designed an OLAP cube (SSAS) to enable fast analytical reporting. Developed a graphical desktop application for retail shelf space management with drag-and-drop features. Submitted DSS project as my final undergraduate project.