Rogério Araújo, Enterprise Architect and Software Developer in Goiânia, Brazil
Rogério Araújo

Enterprise Architect and Software Developer in Goiânia, Brazil

Member since November 5, 2012
Rogério is a full-stack developer with 15 years of experience with software development and architecture. He has worked on several projects for customers in Brazil and globally. The range of projects include mobile, applications, desktop, and enterprise search applications.
Rogério is now available for hire

Portfolio

  • Yieldwatch
    Web3.js, React, Node.js, PostgreSQL, MUI (Material UI)
  • Worthy Financial, Inc.
    React Native, React, iOS, Android Studio, Android, Xcode, Tailwind CSS...
  • Leaf Logix
    Docker Compose, Microsoft SQL Server, Moment.js, TypeScript, LINQ, C#...

Experience

Location

Goiânia, Brazil

Availability

Full-time

Preferred Environment

Mercurial, Visual Studio, Eclipse, Atom

The most amazing...

...software I've built is a Fandango-like iOS app for a Brazilian company.

Employment

  • Senior Software Engineer

    2021 - 2022
    Yieldwatch
    • Wrote admin dashboard to manage projects, product types, products, tokens, and other decentralized finance-related investments.
    • Created API and back-end-related jobs to read blockchain over explorers like BscScan and others to read token information and token pairs to help with asset calculation.
    • Made several UI improvements on the main decentralized finance dashboard and evaluated potential additions to increase tool value.
    Technologies: Web3.js, React, Node.js, PostgreSQL, MUI (Material UI)
  • React Native Developer

    2021 - 2022
    Worthy Financial, Inc.
    • Worked on the implementation of version 2.0 of the web and mobile apps.
    • Managed the Microsoft App Center configuration for staging and production builds.
    • Added complete support for multiple environment configurations.
    Technologies: React Native, React, iOS, Android Studio, Android, Xcode, Tailwind CSS, reacthooks, React Native Reanimated, react-spring, Auth0, Plaid, React Query, APIs, Zapier
  • Senior Software Engineer

    2019 - 2021
    Leaf Logix
    • Developed a mobile app and integrated it with label and receipt printers.
    • Created improvements and fixes for a POS app, the back end of another app, and SQL queries.
    • Created unit tests. Also created a Docker container to make it easy to use and deploy an ERP database locally to help the user on daily development tasks.
    • Forked, improved, and fixed open source libraries in favor of project needs.
    Technologies: Docker Compose, Microsoft SQL Server, Moment.js, TypeScript, LINQ, C#, JavaScript, Microsoft Visual Studio, .NET, ASP.NET Web API, SQL, React Native, Technical Hiring, Code Review, Interviewing, Source Code Review, REST APIs, Next.js, HTML, CSS, API Integration, Node.js, RESTful APIs, APIs
  • Senior Software Engineer and Architect

    2018 - 2018
    Power Home Remodeling Group
    • Developed a React Native app for Android devices. Added support for CI builds. Created unit tests.
    • Helped guide the development of the new app architecture. I proposed and implemented the application state management on top of Redux and Redux Sagas, which also integrated with an on-device database to persist user messages.
    • Forked, improved, and fixed open source libraries in favor of project needs.
    Technologies: Gradle, CocoaPods, Swift, Android, Java, JavaScript, React Native, Technical Hiring, Code Review, Interviewing, Source Code Review, HTML, CSS, API Integration, RESTful APIs, APIs
  • Senior Software Engineer

    2017 - 2017
    DoseDr
    • Developed a mobile app using React Native.
    • Proposed libraries to be used.
    • Used Realm for data storage.
    • Created reusable reducers.
    • Created reusable sagas.
    Technologies: Realm, Redux-Saga, Redux, React Native, HTML, CSS, API Integration, RESTful APIs, APIs
  • Senior Software Engineer

    2016 - 2017
    Digital Gravity Media
    • Developed an Android app.
    • Added beta testing support with Testfairy.
    • Created reusable business logic with libraries like Refit.
    • Proposed app design.
    • Used libraries like ModernHttpClient to speed up network calls and NodaTime to make datetime handling easier.
    • Worked with gamification on the app.
    • Managed code readability with the help of Cheeseknife for view injection.
    • Managed app beta testing and preparing for store release.
    Technologies: TestFairy, C#, Xamarin, HTML, CSS, RESTful APIs, APIs
  • Senior Software Engineer and Architect

    2016 - 2017
    Live2Leave
    • Designed and developed a solution architecture. Developed a landing page alongside background jobs and integration with geospatial data.
    • Added several components to the solution architecture, like Heroku, PostGIS, and Algolia for data indexing and search, as well as Node.js and React.
    • Forked, improved, and fixed open source libraries in favor of project needs, mainly React Native-related libraries to solve very specific software limitations.
    Technologies: Redux, Algolia, Heroku, Mocha, Enzyme, React, React Native, Technical Hiring, Code Review, Interviewing, Source Code Review, REST APIs, HTML, CSS, Software Architecture, Architecture, Technical Leadership, API Integration, Software Design, Node.js, RESTful APIs, APIs
  • Senior Software Engineer

    2016 - 2016
    Treasure
    • Developed an iOS app.
    • Performed maintenance on an API.
    • Proposed mobile app design improvements.
    • Maintained a back-end API.
    • Proposed usability improvements.
    Technologies: Node.js, Stripe, React Native, REST APIs, HTML, CSS, Technical Leadership, API Integration, RESTful APIs, APIs
  • Senior Software Engineer

    2016 - 2016
    Refined Edge Solutions
    • Developed for mobile and web.
    • Created reusable components for the UI.
    • Implemented social networking features.
    • Implemented content sharing features.
    • Proposed design improvements for better handling of authentication and sensitive information persistance.
    Technologies: Node.js, Redux, React Native, HTML, CSS, RESTful APIs
  • Senior Software Engineer, Architect, and Product Manager

    2015 - 2016
    PayCertify
    • Architected and developed a fax processing engine. Led the team and managed products. Integrated with payment gateways like NMI and Authorize.net.
    • Managed the back end on AWS by fixing logging code on the server application and improving application execution.
    • Added support to OCR using Tesseract to automate the processing of order information for fraud detection.
    Technologies: Amazon Web Services (AWS), Cucumber, RSpec, Sidekiq, Redis, AWS, jQuery, Bootstrap, MongoDB, Ruby, Ruby on Rails (RoR), REST APIs, HTML, CSS, Technical Leadership, Software Design
  • Senior Android Developer

    2015 - 2015
    MEGA, Inc.
    • Integrated with a Parse back end.
    • Integrated with Stripe for payment processing.
    • Handled continuous delivery with TestFairy.
    Technologies: Gradle, Crashlytics, Parse, Stripe, Android Studio, REST APIs, HTML, CSS
  • Senior Android Developer

    2015 - 2015
    ConteGoView
    • Created reusable code.
    • Integrated in-app payments.
    • Integrated Google Cloud Messaging.
    • Consumed a RESTful API with Retrofit.
    • Handled dependency injection with Roboguice.
    Technologies: Google Cloud Messaging, Retrofit, RoboGuice, Android Studio, HTML, CSS
  • Senior iOS Developer

    2015 - 2015
    App Factory
    • Integrated RESTful APIs.
    • Handled Apple Pay payments.
    • Proposed mobile app design.
    • Worked with integration tests using XCTest.
    Technologies: CocoaPods, JSONModel, AFNetworking, Apple Pay, Stripe, Objective-C, iOS, HTML, CSS, API Integration
  • Senior Software Engineer

    2015 - 2015
    Kocomojo
    • Handled web development using Elixir and Phoenix framework on the back end and Angular with TypeScript on the front end.
    • Handled unit testing with ExUnit.
    • Integrated Chargify to handle subscriptions and recurring billing.
    • Implemented continuous integration with Travis.
    • Implemented test-driven development with ExUnit.
    Technologies: TypeScript, Angular, Test-driven Development (TDD), exunit, Phoenix, PostgreSQL, Erlang, Elixir, REST APIs, HTML, CSS, RESTful APIs
  • Senior Software Engineer

    2015 - 2015
    Fleetclean, Ltd.
    • Integrated Cocoapods for dependency management.
    • Maintained CodeIgniter-based web services.
    • Developed environment management with Docker.
    • Added integration tests with KIF.
    Technologies: MySQL, Docker, CodeIgniter, Objective-C, Core Data, Flurry, CocoaPods, Xcode, iOS, REST APIs, HTML, CSS, API Integration, RESTful APIs
  • Senior Softwate Engineer and Architect

    2014 - 2014
    MODS Management
    • Architected and developed a solution involving Android applications and RESTful web APIs on top of ASP.NET MVC. Maintained reusable code.
    • Kept track of development tasks over a GitHub issues tracker as a solo initiative.
    • Handled acceptance testing with Robotium. Proposed improvements on UI/UX.
    Technologies: Ninject, SQLite, ORMLite, RoboGuice, Java, LINQ to SQL, Gradle, Android Studio, TestFairy, ASP.NET Web API, IIS, GitHub, Microsoft SQL Server, Android, REST APIs, HTML, CSS
  • .NET Developer

    2014 - 2014
    Peter Franklin
    • Maintained a tool to generate a Google Transit Feed.
    Technologies: Microsoft Access, Google Docs, Windows Forms, C#, HTML, CSS
  • .NET Developer

    2014 - 2014
    Robins Golf Logistix
    • Added new features to a golf coach academy portal.
    • Reworked an admin area look and feel.
    • Handled front-end development using web standards.
    Technologies: BrainTree, SendGrid, Bower, Bootstrap, Amazon Web Services (AWS), AppHarbor, Less, jQuery, ASP.NET MVC, REST APIs, HTML, CSS
  • Senior C# Developer

    2013 - 2014
    American Mortgage Consultants, Inc. (via Toptal)
    • Developed an income analysis application using ASP.NET MVC.
    • Maintained a database model.
    • Handled UI development using jQuery UI widgets.
    Technologies: TFS, ASP.NET Web Forms, MVC Razor, Microsoft SQL Server, jQuery, CodeSmith, ASP.NET MVC, REST APIs, HTML, CSS
  • Senior iOS Developer

    2012 - 2012
    Worry Free Labs, Inc.
    • Developed iOS components.
    • Integrated GitHub libraries.
    • Managed TestFlight.
    • Managed device and profile.
    • Made project estimates.
    Technologies: Objective-C, iOS, HTML, CSS
  • Software Developer

    2012 - 2012
    Tecnonet
    • Developed a FAST ESP back end to provide job vacancy search and resume search.
    • Developed an ASP.NET-based search front end.
    • Maintained and refined content indexing.
    • Created PowerShell and batch scripts for pushing database content to a search engine indexer.
    • Created a search front-end prototype in pure ASP.NET with user controls.
    Technologies: Microsoft SQL Server, jQuery, FAST ESP, ASP.NET, ASP, HTML, CSS
  • Senior Software Engineer and Architect

    2007 - 2011
    Druid Internet Systems
    • Created an iOS application, a Fandango-like app, for a Brazilian customer.
    • Developed an enterprise search solution for a Brazilian mobile carrier site search and call center portal content search.
    • Developed an internet banking front end on top of JavaServer Faces.
    • Architected and developed a web admin module and REST service for URL categorization with FAST ESP content processing integration via Python scripts (document stages).
    • Architected, installed, and supported an Atlassian ecosystem.
    • Developed a restaurant reservation site on top of ASP.NET MVC.
    Technologies: Eclipse, jQuery, Apache Tomcat, JBoss, Hibernate, Spring, MySQL, Oracle, PostgreSQL, SQLite, Android, iOS, XML, FAST ESP, Python, Java, HTML, CSS, Software Architecture, Architecture, Technical Leadership, Software Design
  • Software Engineer

    2006 - 2007
    FAST Search and Transfer
    • Developed a search front end for the Financial Times (a risk assessment portal prototype).
    • Developed a search front end on top of FAST ESP for Vivo (a Brazilian mobile carrier).
    • Co-authored Project Jigsaw, a Java framework for fast development of search engine front ends on top of FAST ESP and JSF.
    • Developed FAST ESP stages in Python.
    Technologies: Python, MySQL, FAST ESP, Hibernate, JSF, Java, HTML, CSS, Technical Leadership
  • Senior Software Developer and Architect

    2005 - 2006
    Court of Justice of Goiás – Brazil
    • Developed and maintained several web applications built on top of PHP and Java languages. JSF, Hibernate, and XDoclet powered all Java applications.
    • Implemented a proof of concept solution on top of Java Portlets with Liferay Portal.
    • Developed a bodyguard library—a set of EL functions to help integrate Spring Security with Facelets.
    • Architected an SSO solution and developed PHP classes to facilitate the integration of a PHP application with JOSSO.
    Technologies: PostgreSQL, PHP, Java, HTML, CSS, Software Architecture, Architecture, Technical Leadership
  • Software Developer

    2000 - 2005
    C&S Computadores e Sistemas
    • Handled ERP solution development using Delphi and Oracle.
    • Developed a small set of ASP.NET 1.0 controls for internal use.
    • Developed an eCommerce product on top of PHP and MySQL.
    • Developed a proof of concept application on top of JBOSS/J2EE.
    • Developed a field of sales application with .NET Compact Framework.
    Technologies: .NET, Palm OS, SuperWaba, J2ME, PHP, ASP.NET, Oracle, Delphi, HTML, CSS, Technical Leadership

Experience

Skills

  • Languages

    Ruby, C#, Java, Objective-C, PHP, JavaScript, HTML, CSS, Python, TypeScript, Swift 2, Elixir, SQL, TypeScript 3, XML, Delphi, Less, Erlang, Swift
  • Frameworks

    Spring JDBC, Spring MVC, React Native, Android SDK, ASP.NET MVC, ASP.NET, Spring, JavaServer Faces, Mojolicious, Ruby on Rails (RoR), Redux, Loopback, Next.js, Hibernate, ASP, JSF, .NET, MVC Razor, ASP.NET Web Forms, ASP.NET Web API, ORMLite, Core Data, CodeIgniter, Phoenix, Angular, AFNetworking, JSONModel, Bootstrap, Grails, Prototype Framework, Tailwind CSS, MUI (Material UI)
  • Libraries/APIs

    Node.js, React, LINQ, CocoaPods, RoboGuice, jQuery, jQuery UI, REST APIs, Moment.js, Facebook iOS SDK, Intercom API, React Redux, Windows Forms, Flurry, Stripe, Retrofit, Sidekiq, Redux-Saga, RxJS, Dwolla API, react-spring, Web3.js
  • Tools

    Atom, Ninject, Eclipse IDE, Microsoft Visual Studio, Notepad++, Docker Compose, NPM, Bower, Gradle, NGINX, lighttpd, Apache Solr, Autofac, Zapier, Apache Tomcat, Visual Studio, Mercurial, CodeSmith, TFS, SendGrid, Google Docs, Microsoft Access, GitHub, Android Studio, LINQ to SQL, Xcode, Google Cloud Messaging, Crashlytics, RSpec, Cucumber, Mocha, Auth0, Plaid
  • Paradigms

    Object-oriented Programming (OOP), Agile Software Development, Functional Programming, Mobile Development, Test-driven Development (TDD)
  • Platforms

    MacOS, Windows, Android, iOS, Linux, Xamarin, Amazon Web Services (AWS), Oracle, FAST ESP, JBoss, Eclipse, J2ME, AppHarbor, TestFairy, Docker, Parse, Heroku, Algolia, NetBeans
  • Other

    Enzyme, Apache Commons, API Integration, RESTful APIs, APIs, LogRocket, React Query, Software Architecture, Architecture, Technical Leadership, Software Design, SuperWaba, Palm OS, BrainTree, IIS, exunit, Apple Pay, AWS, Technical Hiring, Code Review, Interviewing, Source Code Review, reacthooks, React Native Reanimated
  • Storage

    PostgreSQL, MySQL, SQLite, Microsoft SQL Server, Elasticsearch, MongoDB, Redis, Realm

Education

  • MBA Degree in IT Management
    2014 - 2015
    IPOG - Goiânia, Brazil
  • Bachelor's Degree in Computing
    2001 - 2005
    Universidade Salgado de Oliveira - Goiânia, Brazil

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