About me 

Leading the Transactions vertical at a fintech company serving the private banking and high-net-worth segment. I design and build event-driven Node.js microservices that sit between end clients and the Visa/Mastercard card networks — handling real-time authorization decisions, automated dispute and chargeback workflows, and fraud detection systems.

• Architected a multi-state dispute engine that automated the full chargeback lifecycle across two card processors, replacing a fully manual operations process.
• Built a real-time, velocity-based fraud detection engine with automated card blocking and customer confirmation through an AI-powered WhatsApp concierge.
• Automated merchant unblocking workflows with AI-powered legitimacy verification, contributing to measurable decline rate reduction.
• Led decline rate analysis and reduction across two card issuers, with automated reporting for stakeholders.

Technology stack: TypeScript, Node.js, PostgreSQL, Redis, AWS (Lambda, S3, OpenSearch), LangGraph, Event-driven architecture

Cloud-native digital banking platform (Cyberbank Digital) serving 100M+ enabled accounts across 16 countries. Built and migrated white-label web and mobile banking experiences for financial institutions throughout Latin America.

• Developed full-stack features across the entire core banking product, covering end-to-end digital banking operations.
• Designed a reusable component architecture serving multiple banking clients across web, mobile, and backoffice channels.
• Earned promotion to Senior Software Engineer, recognized for consistent delivery, cross-team collaboration, and technical ownership of client-facing features.

Technology stack: React, Redux, TypeScript, Module Federation, Vite, Java/Spring, Node.js, MS SQL Server, Redis, Cordova, Keycloak, AWS, Azure ACR, Docker

Design and integration of web services (Rest and SOAP) for the creation of Rest APIs using Python and Pytest in a microservices environment. Using TDD methodology and working in collaborative environments with people from different countries where effective communication and problem solving were critical to the success of the project. My focus was on problem solving, effective action and delivering high quality and high performance results. As a result, Rest services were created and used in production environments and by hundreds of users.

Technology stack: Python, Pytest, Pydantic, HTML/SCSS/JS

Creating custom software solutions that meet the specific needs of clients. I have employed modern technologies and frameworks. In addition, the use of methodologies such as SCRUM has ensured the progressive delivery of results and collaboration with other teams such as designers and developers. The projects in which I have participated stand out for their quality, functionality and ability to meet the needs of end users. My focus on continuous improvement has enabled the optimization of processes and the reduction of operational costs for clients and the organization.

Technology stack: HTML/SCSS/TypeScript, Bootstrap, React, Angular, Flutter, Node, Nest

Improve the learning process in Moodle courses using data analysis and predictive modeling techniques that included: exploratory analysis, identification of behavioral patterns and detection of dropout prediction variables using Machine Learning techniques. As a result, a Moodle plugin was designed and developed that includes learning analytics and visualization dashboards.

Technology stack: Moodle, Vue/Vuex/Vuetify, Mysql, php, Machine Learning, Data Analysis

Developed a mobile application using Flutter, Dart and Firebase. I led the development of an ecommerce application that allows entrepreneurs to create and manage stores to sell products. In addition, I implemented a messaging system for effective communication between customers and sellers. Following agile methodologies, such as SCRUM, I ensured fast and efficient delivery of the final product. The application was successfully launched in the Play Store and Apple Store.

Technology stack: Flutter, Dart, Bloc, Firebase

• Computer teacher in the 2nd year of high school.
• Teaching was part of the Project "Promoviendo el uso de las TIC en estudiantes de Parroquias Rurales de Cuenca".
• Voluntary participation - non-profit.
• The classes taught were related to digital education and programming in languages such as C, C++ and Python.

• Implementation of a module to generate a SImplified Transactional Annex (ATS) that facilitates compliance with the obligations of taxpayers to the Internal Revenue Service (IRS).
• The module belongs to the Invoicing system called FACTUM of which the company GigaComputers is the owner.

Technology stack: Java, Springboot, HTML/CSS/JS, MySQL