Pablo – React, Typescript, Node.js

A patient recruitment and enrollment platform designed to connect potential participants with medical research studies. The system streamlines the participant enrollment journey through an integrated frontend and backend, while providing call center and administrative teams with back-office tools to manage applications, track enrollment progress, and support study recruitment operations.

• Designed, developed, and maintained full-stack applications using Node.js, Express.js, GraphQL, Typescript, and React.
• Built and integrated backend services, APIs, and frontend features across the entire software development lifecycle.
• Participated in technical design and architectural decisions, emphasizing maintainability, reliability, and code quality.
• Developed and maintained automated tests to validate functionality, prevent regressions, and support reliable software delivery.
• Collaborated with cross-functional teams in Agile environments using Scrum and Kanban methodologies.
• Provided technical guidance and mentorship to other developers.
• Contributed to software solutions across digital banking, workforce management, and healthcare technology.

A point-of-sale system for small restaurants and retail businesses, with built-in online payments. It came with a back-office for managing the business and a mobile POS app for taking orders and payments.

• Designed and built a new architecture for version 2.0 of the system.
• Built the private API behind the back-office.
• Built the private API the mobile POS app uses to connect to the system.
• Worked with Node.js, C#, Angular and JavaScript, and used Docker and Kubernetes.

An independent local news website for young adults, focused on telling untold local stories. Along with the public news site, the platform had content management tools the editorial team used to publish and manage articles.

• Built the frontend and backend of the content management websites with JavaScript and PHP.
• Set up testing processes for the project and used Selenium for automated testing.
• Reviewed the existing software to find quality issues and suggest improvements.

A whole integration for insurance service for customers, doctors and drug stores. Currently, one of the most used company-based health insurance in the country .

• Developed specification tests based on user stories defined in Scrum sprints using Cucumber for Java and SpecFlow for .NET.
• Performed manual testing on API endpoints using Postman.
• Performed manual testing of mobile applications to ensure consistent behavior across iOS and Android.
• Reviewed unit test coverage to ensure code lines were reached.
• Defined and developed new testing strategies for implementation.