Jose Vallejo

I am a Fullstack developer with extensive experience in Java (Spring Boot) and Angular. Although I develop applications from scratch, what I have truly specialized in is the modernization of legacy systems and the management of technical debt.

I know perfectly well what it implies to work with old software: monolithic code that is difficult to maintain, obsolete dependencies, and the constant fear that something will break when touching a line. My job consists of entering these systems, analyzing the existing business logic, and transforming them into modern, modular, and scalable applications, without the business stopping during the process.

On the backend, I rely on the robustness of Spring Boot to create robust, secure, and efficient APIs. On the frontend, I use Angular to build clean, fast, and structured interfaces.

I don't limit myself to just writing code; I plan the migration progressively, clean up spaghetti code, and restructure databases to ensure performance. I work under best practices (Clean Code) to guarantee that the resulting system is maintainable by any team in the future.

If you have a system that has become obsolete, doesn't scale, or is a world of trouble to maintain, write to me and let's see how to update it safely.