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Alexandre Mondaini Calvão

Alexandre Mondaini Calvão

Melbourne, Victoria, Australia
Member since October 2, 2012
Alexandre is an expert Ruby on Rails developer who is also experienced with Java and various front-end technologies. In addition, he's worked extensively with WebRTC, building video-based web apps from scratch.
Alexandre is now available for hire
  • HelloMd
    Ruby, Rails, Git, Ubuntu, Unicorn, Nginx, Haml, CoffeeScript, CSS, RSPE...
  • Ideais
    Java, Jsf, Js, Spring, Hibernate, Mave, Ant
  • Ruby, 5 years
  • Java, 5 years
  • Ruby on Rails (RoR), 5 years
  • JavaScript, 4 years
  • Agile Software Development, 3 years
  • PostgreSQL, 3 years
  • JSON, 2 years
  • Python, 1 year
Melbourne, Victoria, Australia
Preferred Environment
OS X, Ubuntu
The most amazing... I've developed is an isometric map display created with the KinectJS framework.
  • Team Leader
    2012 - 2014
    • Created numerous applications using WebRTC technology.
    • Managed outsourced employees based in Vietnam.
    • Started a tech company from zero.
    Technologies: WebRTC
  • Developer
    2011 - 2012
    • Designed and developed systems for for support of the daily activities of the secretary.
    • Implemented various functionalities using the test-driven design methodology with RSPEC.
    Technologies: Ruby, Rails, Git, Ubuntu, Unicorn, Nginx, Haml, CoffeeScript, CSS, RSPE, Capybara.
  • Developer
    2009 - 2011
    • Developed a web service using REST for interfacing a web service with a SOA Web Service.
    • Developed several REST services that transcribe calls for SOA, allowing access to the CMNET system for hotel booking.
    • Developed a system for the remittance of scheduled e-mails and for template registration.
    • Added user control to a system already in production, along with SSO (Single Sign On) functionality for other systems.
    Technologies: Java, Jsf, Js, Spring, Hibernate, Mave, Ant
  • Socitrip (Development)

    Developed various functionality, including Facebook integration.

  • Gamc (Development)

    Personal project under active development.

  • Banco de Talentos (Development)

    Developed an application for the registration of applicants with interest in lecturing on military policy. Further, developed a second application for the consultation of the applicant’s information and expertise.

  • Wikimapa (Development)

    Developed the second version of the Wikimapa website.

  • MIMO (Development)

    Start up the company system.

  • Mesoatomic (Development)

    A Mobile application to teach physics, created using Ionic.

  • Paper Hero (Development)

    A Unity3D game created by me.

  • A Year Building a WebRTC Application: Lessons in Startup Engineering (Publication)
    I've been an Engineer at Toptal for just about one year now, working on the same project since I joined the network: Ondello, a service that connects doctors and patients over WebRTC. When I first joined Ondello, I was hired as a Senior Ruby on Rails Developer, tasked to build a service up from scratch. These days, we're a team of multiple developers working on a fairly large, complex system. With this post, I'd like to share the story behind Ondello. Specifically, I'd like to talk about: how a simple application became not-so-simple, and how our use of cutting-edge technologies posed problems I'd never considered before.
  • Languages
    Ruby, C#, JavaScript, Java, SQL, Python, CoffeeScript
  • Frameworks
    Ruby on Rails (RoR), AngularJS, Ionic, Ionic 3, Unity3D, Capybara, PhoneGap, JavaServer Faces
  • Libraries/APIs
    WebRTC, Salesforce API, Facebook API, jQuery
  • Storage
    PostgreSQL, SQLite, JSON, Oracle SQL, MySQL
  • Tools
    Microsoft Excel, RSpec, Adobe Fireworks
  • Paradigms
    Agile Software Development
  • Platforms
    Unix, Windows, Linux
  • Graduate degree in Computer Science
    Universidade Federal Fluminense - Rio de Janeiro - Niteroi
    2004 - 2009
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