Node.Js Developer

Led the technical development of an iOS/Android mobile application using Flutter, delivering roughly 50% of the MVP. Coordinated the team by assigning tasks and priorities under Agile (Scrum) methodologies. Refactored backend and mobile frontend into a layered MVC architecture, improving response times and performance. Implemented WebSockets for real‑time communication. Managed the deployment of the application to the App Store and Google Play.

Developed and maintained REST APIs with Spring Boot, guaranteeing performance, security, and proper documentation using Swagger/OpenAPI. Worked in a service‑based architecture with clearly defined responsibilities, where services communicated via APIs and shared a database. Migrated core systems from Java 11 to Java 17, mitigating vulnerabilities and improving system stability.

Designed and built scalable backends and RESTful APIs with Java, Spring Boot, and Node.js, ensuring robust product integration. Implemented scalability strategies on AWS, optimizing operational efficiency and reducing infrastructure costs. Contributed to system‑design discussions, adopting Hexagonal Architecture and DDD principles to improve maintainability.