Marlon Wagner Hernandez Castañeda

I am a Full Stack Developer with over 6 years of professional experience, specialized in building robust web applications and enterprise systems using Java (6–25), Spring Boot, Angular, and Microservices architecture.

My expertise covers API design, backend development with Spring Boot and JPA, frontend interfaces with Angular and TypeScript, and database integration with Oracle, PostgreSQL, and MySQL.
I have delivered successful projects for industries such as banking, insurance, government, and SaaS, always ensuring scalability, performance, and security.
I help clients from concept to deployment — designing clean architectures, optimizing existing systems, and providing long-term support to ensure high-quality and maintainable solutions.