Adrian – React, Node.js, JavaScript

This is a procure-to-pay platform for the biotech industry that enhances efficiency and reduces administrative overhead, helping to accelerate research and shorten development cycles.

Vicente was responsible for creating a microservice with Node and implementing UI requirements.

• Implemented a secure and scalable payment system using Node.js, Express.js, and MongoDB
• Developed responsive front-end payment interfaces with React, Next.js, and TypeScript
• Integrated multiple payment providers to offer diverse payment options
• Wrote comprehensive unit, integration, and end-to-end tests for payment modules
• Optimized transaction processing for efficiency and reliability
• Ensured compliance with industry regulations and standards in payment processing
• Work with Graphql queries mutation types with different technologies to handle logic on the frontend and backend

A company that offers scraping services to their clients.

• Compromised understanding of heavy backend processes to implement secure and high-standard workflows
• Improve and define new backend workflows with requirements and business analysis team to ensure correct workflows are deployed
• Completed work with the reduced time constraints in the project
• Work with Graphql queries mutation types with different technologies to handle logic on the frontend and backend
• Created unit tests in the backend
• Resolve some issues on frontend and a mobile app with React Native
• Resolved bugs
• Document backend endpoints and provide Frontend detailed APIs to be consumed with other libraries, or Postman
• Found new bugs in the backend and fixed and improved some functions that were reused everywhere
• Integrated with different providers
• Understand current DevOps workflow and Worked with Kubernetes, Docker and AWS to help deploy the solution

A healthcare company. The stack inside was entirely microservices, with more than 157 microservices using patterns like SAGA PATTERN. This company worked to deliver information about healthcare studies to different partners. They also have different integrations, with Oracle, for instance, to provide structured healthcare data. They used a mobile application to take patient information and provide it to all the partners.

• Fixed hard-to-discover bugs
• Gave ideas to enhance team management
• Work with Graphql queries mutation types with different technologies to handle logic on the frontend and backend
• Worked in the front-end CI/CD deployment backstage
• Refactored an essential service to improve maintainability
• Worked in more than 5 microservices
• Wrote a lot of documentation with UML and C4 diagrams
• Manually and automated tested the solution many times due to the business requirements
• Implement frontend solutions with Next.js, Vercel, and React Query

A company focused on delivering budgets to governments with many clients.

• Migrated the user UI settings to Angular2+, which was successfully delivered and on time
• Migrated an old AngularJS application to the new Angular version
• Implement different modules in nextjs app with react query
• Designed some new features for the new migration
• Created components in Stencil to document web components made in Angular
• Used monorepos
• Worked with feature flags for enabling disabling functionalities from the application to certain clients

Healthcare company that uses Svelte for the front end. They served pre-defined environments for data science teams with containers, but the whole application can be managed on the web. They have different back-end services, so they are using a Microservice architecture. This engagement focused on writing E2E tests as an Automation Testing Engineer with Cypress, making solid and reusable tests that give confidence that the application is not broken.

• Completed 3 modules for automated testing with Cypress
• Changed front-end code to add HTML tags (IDs) to conduct testing
• Generated reports
• Tested and automated those flows manually

This project, led by a 15-member team, focused on full-stack development. They utilized .NET Core Web API for the backend, React for the frontend, and MSSQL for the database. Their tasks included creating features, resolving bugs, refactoring code, addressing technical debt, conducting functional tests, participating in code reviews, and deploying the solution to various environments. A significant aspect involved a comprehensive application refactor to enhance frontend functionalities with React.

• Migrated successfully js files to ts files
• Migrated core components from mobile app to web
• Defined clear standards for reusing code
• Integration testing with Cypress
• Did unit testing of components