Lenin Ospina
Software Developer
Professional profile
Bilingual Backend Developer and Systems Engineer with expertise in Java ( Spring Boot , WebFlux ) , OOP , SOLID , clean architecture , microservices , API-driven architectures , Docker , AWS , Azure , and Python for API and ML . Strong communication skills , ready for international environments
Work experience
Developed backend using Spring WebFlux, PostgreSQL, Azure, and OpenAI API to allow users to query databases in natural language.
Major achievementIntegrated Java backend with OpenAI APIs for natural language queries, enabling dynamic data retrieval from relational databases. Deployed for Medellín City Hall on Azure.
Built microservices with Java, Spring Boot, PostgreSQL, AWS EC2, implementing security, applicant, vacancy, and company management.
Major achievementDeveloped microservices for Disruptia's job platform, including AI-based candidate ranking and automation of recruitment filtering.
Education experience
Universidad de medellin | Profesional
