Responsible for the core project of the company, with multi-engine services serving all the front-end apps. Sometimes doing small maintenance on the monolith. I’ve also helped to increase the test coverage. I dealt with some AWS resources, like lambda, S3, API Gateway, and Cloud formation.

Development and maintenance of the multi-engine rails app focused on integrating it with the customer's API.

Development and maintenance of several projects of several clients, mostly using Ruby on Rails. With this diversity of projects as well as teammates, I have learned a lot about good practices and what is commonly used by the community.

Responsible for integrating a new payment gateway in the app (rails API), and increasing the test coverage for the existing payment gateway.

I work mostly on an app that automatically manages ads and budgets on Facebook, AdWords, and Bing platform. The company uses Google Big Query to store important data, then the apps have the responsibility to query those to create reports, manipulate the ads, the budgets, etc. Apps deployed using Kubernetes and Google Cloud Platform.

Responsible for implementing new features and creating a new user-level with restricted access in two different applications. Applications developed with Ruby on Rails, RSpec, Capybara for tests, and deployed using Capistrano.

This is an application to buy dollars, calling some APIs to handle all process steps. My contributions were about code improvement and test coverage. Application developed with Ruby on Rails, tests with RSpec and Capybara, deployed in Heroku.

Development of a new web application to allow sellers to sell their products on B2W's marketplaces. This app also handles multi stocks, bills, and shipments. One of my important contributions and learning was with API's communication. System developed with Ruby on Rails, tests with RSpec and capybara, deployed in Heroku.

Development of withdrawal and deposit processes, stochastic oscillator dashboard, and trades/orders flow. Backend using ruby, Postgres, Redis, and daemons processes.

Development and maintenance of several APIs and control of integration between services. Systems developed in ruby on rails, Postgres database, background tasks with Sidekiq, tests with RSpec and deployed in Heroku.

Development of middleware for authenticating users on a local network through the SAML protocol. System developed in ruby on rails, tests with RSpec, and deployed in Heroku.

The main goal of the system is to track children who aren't in school and get them back to school. There are several workflows to achieve the main goal, starting with external agents reporting cases by SMS, Android App, or the Web System itself, followed by many steps until the resolution is achieved. I worked on the improvement of these workflows and building maps to display the reported cases. Backend developed in ruby and Sinatra, Postgres database, and tests with RSpec. Frontend with angular. Installation using Docker.

Web system development to import Facebook Ads data through Facebook API and Google Ads data from another database to generate dashboards and reports to show to registered clients. System developed in Ruby on Rails, template bootstrap, database Postgres, background jobs with Sidekiq, tests with RSpec and capybara, and deployed in Heroku.

Development and maintenance of a web ERP system, including customer and employee records, inventory management, sales, negotiations, reports, and process workflow. Cell phone plan management was also done. For this, we developed a web scraper to get information from the mobile operators' websites, such as plan, balance, and history of calls, then billing calls and SMS. Systems developed in Ruby on Rails, template Bootstrap, database Postgres, background jobs with Sidekiq, and tests with RSpec and Capybara.

Development and maintenance of a web ERP system, including customer and employee records, financial and stock management, cash flow, sales, reports, invoices, and bank slips. System developed in Ruby on Rails, database MySQL, background jobs with a delayed job, and tests with RSpec and Capybara.