Carlos Antonio Diaz Fonseca

Owned a customer notification system for a flight booking platform, cutting manual monitoring work by ~50%. Built a reliability layer for a third-party accounting integration, reducing support tickets by ~30%.

Built an AI-powered transcript editor, reducing transcript review time by ~50%. Owned the core interview management workflow, reducing processing time by ~40%.

Led a team of three junior developers, establishing engineering practices that improved productivity. Led implementation of RCS messaging service with microservices architecture and RabbitMQ queues.

Led redesign of core frontend application, improving performance, SEO, and accessibility, resulting in ~70% improvement in Lighthouse performance. Built analytics dashboards and a custom PDF report generator.

Developed and maintained a full-stack operations platform, reducing manual work by ~50%. Automated operational monitoring and traffic reporting using scripts and AWS Lambda.

Developed new features for two in-house applications, building customer and operations workflows. Built a reusable UI component library to improve consistency and reduce repeated development.

Built end-to-end features and internal applications, translating business requirements into functional and reusable solutions across frontend and backend systems.

Pursued a Master in Business Information Technology from Universidad de la Salle Bajío from 2021 to 2023.

Earned a BS in Information Technology from Instituto Tecnológico de León from 2015 to 2019.