Team Lead in charge of the development of the React Native application in the area of education and provide the Front End architecture of the project. Tech stack: React Native, ReactJS, JavaScript, TypeScript, Redux, Jest, React Native testing library, Detox, App Center, Fastlane, CI/CD, Node.js, REST API, AWS, NextJS, NodeJS. • I was in charge of a team of four developers and I had the responsibility of designing a mobile application using react native that can be maintained in the long term. • It was developed using “Clean Architecture”. • I implemented the testing environment, and I coded the unit testing and e2e testing. • I was part of the coding of all areas of the application. Among them I developed a module for offline support, and I developed a module to receive SVG images on the server, transform them to JSON and in the application I developed a component to render them natively on the device. • The app was rich in animations and I implemented several complex animations. • Performed code reviews and code quality control. • Participation in spring planning.

PeopleReady [Jun 2020 – Feb 2022]: • Team Lead in charge of the Front End development of two React Native applications in the on-demand services area. See apps at https://www.peopleready.com/jobstack/. Tech stack: React Native, ReactJS, JavaScript, TypeScript, Redux, Jest, React Native testing library, Detox, App Center, CI/CD, Node.js, REST API, GraphQL, AWS, Sentry, Amplitud, AWS Amplify. --- I had the responsibility of designing a maintainable, testable and extensible architecture for mobile applications. --- The architecture was implemented using the concepts and design patterns of Robert C. Martin for "Clean Architecture". --- I used Atomic Design for the creation of a library of UI tools shared between applications and the presentation layer was moved to this library. --- I was in charge of the CI/CD design. App Center was used for the building, unit testing and distribution of the application to different targets and stores. --- Sentry was implemented as a crash and log reporting tool. And Amplitude for data analytics and data warehouse. --- Performed code reviews and code quality control. --- I coded most of the components of the UI component library used in the main apps and the presentation layer. --- I was in charge of a team of 9 developers. The company used the methodology that you find in the book "Accelerate: Building and Scaling High Performing Technology Organizations", and I think we were successful because it was possible to solve code tasks, submit them for review and deploy them to production in an efficient, safe and very fast way. World50 [Feb 2022 – July 2022] • Full stack Developer. World 50 is a private community for senior-most executives from globally respected organizations. In charge of the development of a React Native application. Tech stack: React Native of GraphQL, NodeJS, Postgres, React, React JS, Redux, Typescript, Google cloud. --- Implemented new UI/UX, fixed bugs, and improved performance for the React Native application. --- I built a web app module of forms for the registration and sending of Projects that seek to obtain financing. --- Development of the data model for the new API. --- Code review, and participation in spring planning.

Codistry, San Francisco, Senior Software Engineer [OCT 2017-DEC 2018] (FREELANCER) • I created LACountyDiversion, a product for a good cause that helped many people by digitizing functions of social workers, Courts pharmacists, and the process of the participants. See a video about the program here: https://www.youtube.com/watch?v=LdpQnYoTmVY Zerby App, Costa Rica, Senior Software Engineer [JAN 2018-FEB 2020] (FREELANCER) • In charge of designing an application in the services on-demand area. Codistry, San Francisco, Senior Software Engineer - FullStack [OCT 2019-JUN 2020] • Team Lead in charge of developing these projects: --- Coingenius: It is a dashboard for cryptocurrencies, and the website. --- Thompson Boxing Promotions: React Native App for video Streaming. --- LACounty Diversion: Redesign and secure architecture based on HIPAA.

18 TECHS, GEORGIA, Software Engineer [JAN 2016-OCT 2019] • VERIFYD: --- In charge of apps for management of property auctions. • 4TIUS POC: --- JAN 2017, Web and React Native app for streaming videos CuantoPago, Costa Rica, React Native Developer [MAY 2017-OCT 2017] (FREELANCER) • I Developed a POC that was the proposal presented to investors.

Anzen Soluciones - Banamex, México, Web developer [JAN 2009-DEC 2010] • Front End developer. Creation of the Banamex financial portal. Latitude 10 North, Costa Rica, Senior Web Developer [DEC 2010-APR 2011] • Web developer. I developed an iOS app for visualizing presentations. Prodigious - BOSZ Digital, Costa Rica, Senior Web Developer [MAY 2011-AUG 2013] • In charge of web apps for brands like GM, OnStar, and Goodyear. Accenture, Costa Rica, Senior Web Developer [AUG 2013-DEC 2015] • In charge of creating Restful APIs for projects like Merck and JP Morgan.