Profile image of aamaia
Flag of Brazil Rio de Janeiro, Brazil
Member since November, 2012
3 Recommendations


Just tell me a little bit about the underlying problem you're trying to solve and I'll handle the rest! * * * Welcome! If I placed a bid in your project, at least one of the following applies: (i) you have a focused project with clear requirements, in which case I have carefully read the specs and I'm confident it's viable and I have adequate expertise to deliver quality work under my bid conditions. (ii) you have a small project and/or I placed a cheap and/or strangely short bid, in which case you probably received a private message with details. It's possible I have a solution ready or an extremely efficient way to have the project done. (iii) you project is innovative, and/ or curious. I have a tendency to place lower bids in projects that challenge my skills. Perhaps that's the case :-) In case none of that applies, It's possible I'm not a good match -- or booked out -- and that's why I did not place a bid. The Freelancer platform is fantastic in that it connects a very broad diversity of people. Sometimes the competition is tough and I leave projects for more "experienced" or incautious bidders :-) If you landed here by recommendation of another client, he's probably right. Feel free to invite me to bid. Also, if you're not clear about an appropriate technology stack, a cheap & effective way to start the project on the right track is to pay me a coffee in Rio de Janeiro/Brazil. If you prefer, assigning me an hourly consultancy project is equally effective. Lastly, not all my skills are listed here. Right now I'm focused on Ruby but my work experience is very broad. If you have special requirements I'm happy to listen. Thank you for your attention. Good luck and best wishes!
$120 USD/hr
35 Reviews
  • 78%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 16%Repeat Hire Rate

Recent Reviews

  • image of ajtalsma RoR realtime iBeacon data app €263.00 EUR

    “Great developer, very fast and quality work!”

    ajtalsma Flag of Netherlands 1 month ago.
    • Ruby on Rails
    • Redis
  • image of alexrabarts Incident Reporting API Endpoints $150.00 USD

    “Great work - fast and professional with fantastic communication.”

    alexrabarts Flag of United Kingdom 4 months ago.
    • Java
    • Javascript
    • Ruby on Rails
    • Amazon Web Services
    • Hire me
    • Ruby
  • image of feliperalcoh Ruby on Rails Developer Needed [Sealed]

    “A Great Freelancer.”

    feliperalcoh Flag of Brazil 5 months ago.
    • Ruby on Rails
    • Ruby
  • image of aidandunsdon Ruby on Rails Developer £789.00 GBP

    “Alexandre has a very professional and competent approach. He is creative and proactive, as well as being responsive and timely in meeting deadlines. I would recommend highly and definitely hire again.”

    aidandunsdon Flag of United Kingdom 5 months ago.
    • Ruby on Rails
    • PostgreSQL
  • image of alexrabarts API Framework £200.00 GBP

    “Thanks. Project was delivered quickly and to specification. Will definitely rehire.”

    alexrabarts Flag of United Kingdom 5 months ago.
    • Ruby on Rails
    • Software Architecture
    • Ruby
  • image of hitchcockseye Make our Database faster $263.00 USD

    “High quality worker...would love to hire him again ;)”

    hitchcockseye Flag of Canada 6 months ago.
    • Ruby on Rails
    • Amazon Web Services
    • PostgreSQL
    • Database Programming
    • Database Development



Feb 2000




2000 - 2004 (4 years)


Programming Language (2013)

Coursera (University of Washington)

Mining Massive Datasets (2014)

Coursersa (Stanford)

Algorithms for extracting models and other information from very large amounts of data.

Algorithms: Design and Analysis, Part 1 (2015)

Coursera (Standford)

Fundamental principles of algorithm design: divide-and-conquer methods, graph algorithms, practical data structures (heaps, hash tables, search trees), randomized algorithms, and more.


Support Systems for Image Quality in Satellite terrain Stations

This paper describes two tools codenamed Marlin and Sailfish developed to allow visualization and quality evaluation of satellite images, and geometric and radiometric analysis and simulation of parameters involved in generating those images.

Molecular Dynamics Application for Long-Range Interacting Systems on a Computational Grid Environment

This paper presents the ongoing activities of the NextComp project. This project has as main objective to investigate the validity of nonextensive statistical mechanics for systems with long-range interactions, in particular the Hamiltonian Mean Field model. This will be achieved through molecular dynamics (MD) simulations by a parallel program taking advantages from Charm++ language. Development and tests are carried out in a Linux cluster environment, being our interest focused on a grid environment in or


  • US English Level 1

My Top Skills

  • Ruby on Rails 31
  • Amazon Web Services 9
  • Ruby 6
  • Java 2
  • Javascript 2
  • Python 0
  • Algorithm 0
  • eCommerce 0
  • Embedded Software 0
  • C++ Programming 0
  • HTML5 0
  • HTML 0
  • Big Data 0

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