Juan Diego Lopez Arias

I’m a Fullstack Software Developer focused on backend development with Java and Spring Boot, with strong frontend skills using React and modern web technologies. I build and improve real-world applications, designing scalable APIs and integrating frontend and backend systems with clean architecture principles.

In recent projects, I ensured clear data flow between services and built backend solutions for concurrent transactions with strong data consistency. I designed idempotent operations for safe transaction processing and implemented authentication using JWT and Spring Security. On the Video Editor Platform, I developed backend services for video rendering with FFmpeg and integrated complex frontend workflows with maintainable UI components.

I also built an University Agreements Management System with role-based access control and approval workflows. I designed and implemented APIs and file storage using AWS S3, connecting backend services to support secure and efficient processes.

I’m comfortable working with existing codebases and take ownership to improve clarity and maintainability. My goal is to keep delivering scalable, reliable solutions that are easy to extend and operate.