Willian alexander Chávez Servellón

Develop web services for financial solutions powered by AI and ML, including building interfaces and APIs for financial-sector entities. Built AddaShield, an explainable fraud-risk scoring API, and manage production systems.

Built a solid-waste tracking and control system with Node.js, TypeScript, NestJS, Docker, MongoDB, message queues and Redis, increasing operational efficiency by 30%. Implemented a national human-resources system with React and NestJS, optimizing HR processes by 40%, and created an accessible system for CONAIPD.

Designed a web system for a pharmacy with Node.js and TypeScript under an MVC architecture, improving customer interaction and order processing by 35%. Built an inventory-management system with React, Node.js and PostgreSQL, reducing stock discrepancies by 25%, and implemented a POS system increasing transaction speed and reliability by 20%.

Pursuing a B.Sc. in Computer Systems Engineering, with expected completion in 2026.

Completed a Machine Learning Specialization from January to December 2026.

Studied English as a second language from 2020 to 2021.