Selected for a talent development program focused on back-end engineering, receiving intensive training in Node.js, REST APIs, Docker, Design System, SQL and NoSQL databases. Helped implement a normalization layer for Mexico operations, including AMEX and Prosa back data, unifying formats and validation rules to reduce inconsistencies and improve downstream processing accuracy. Participated in the development of a Node.js microservice for batch processing of chargeback claims, reducing manual steps and improving workflow reliability. Assisted in operational support activities, including review and re-processing dead-letter messages, diagnosing production bugs, and collaborating with senior engineers to implement fixes.

Sr Back End Developer at Getnet

November 1, 2024 - November 18, 2025

Extended the existing batch processing microservice to support Chile and Argentina, adapting it to regional rules and increasing service scalability and cross-country coverage. Improved portal performance by optimizing React filters and MongoDB queries, resulting in faster response times and smoother user experience. Designed and implemented a Node.js API for large-scale merchant claim management, simplifying intake process and unifying claims from multiple providers into a consistent structure. Collaborated with back-end and front-end teams to integrate Visa and Mastercard for Mexico, contributing to service updates and portal UI features supporting chargeback processes. Implemented document cryptography and data-masking solutions to secure sensitive files and transactions, strengthening compliance and reducing exposure risks.