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Raul Piaggio, Java Developer in Montevideo, Montevideo Department, Uruguay
Raul Piaggio

Java Developer in Montevideo, Montevideo Department, Uruguay

Member since December 9, 2014
Raul specializes in Java and Scala development, seeking elegance in software architecture and code and striving for the proper abstractions to obtain maximum productivity and maintainability. He has been coding since he was nine, professionally since he was eighteen. Learning new things is what motivates him the most, and in the past few years, he has begun to specialize in front-end web technologies as well.
Raul is now available for hire

Portfolio

  • Freelance
    Scala, Play, Slick, Java, C#, MySQL, Angular.js, REST, Cyclos
  • Micropagos S.A.
    Java, EJB 3.0, JBoss 5, Scala, ISO 8583, Git, Gradle, MySQL
  • Handsoft S.A.
    CentOS 6, Java, EJB 3.0, JBoss, TomCat, Apache, MySQL, Java ME

Experience

  • Java, 9 years
  • JBoss AS, 8 years
  • MySQL, 8 years
  • C#, 5 years
  • C++, 5 years
  • Scala, 3 years
  • JavaScript, 3 years
  • Play Framework, 2 years
Montevideo, Montevideo Department, Uruguay

Availability

Part-time

Preferred Environment

IntelliJ Idea, Eclipse, Git, Windows, Linux

The most amazing...

...thing I've built is Uruguay's leading mobile payment platform, with a modular transaction engine, SMS routing framework, and PCI/DSS certification.

Employment

  • Senior Software Engineer and Developer

    2008 - PRESENT
    Freelance
    • Developed the CardApp website and back-end. CardApp offers rechargeable Mastercard debit cards.
    • Built OlhaConta's transactional engine based con Cyclos. OlhaConta is an SMS-based banking alternative for the low-income sector in Brazil.
    • Created the web version of the Pan American Health Organization's perinatal information system, used in maternity wards throughout Latin America.
    • Developed a system to hierarchically aggregate the perinatal information system's data across institutions.
    • Developed the back-end for Banco Sofisa's mobile application in Brazil.
    • Improved MarketMuse's user authentication system and site crawler, using Scala and Play! Framework. (via TopTal).
    Technologies: Scala, Play, Slick, Java, C#, MySQL, Angular.js, REST, Cyclos
  • Senior Architect and Developer

    2009 - 2014
    Micropagos S.A.
    • Architected, designed, and developed Uruguay’s leading mobile payment platform.
    • Organized the development team.
    • Created a fully modular, failsafe transaction engine.
    • Built an SMS application framework.
    • Provided second-level support on operations.
    • Adopted tools and methodologies for teamworking such as Scrum, Jira, GiT, and Gerrit.
    Technologies: Java, EJB 3.0, JBoss 5, Scala, ISO 8583, Git, Gradle, MySQL
  • Development Team Leader and Systems Administrator

    2006 - 2009
    Handsoft S.A.
    • Developed the back-end for early mobile applications.
    • Programmed Java ME games.
    • Set up, configured, and provided support for production server environment.
    • Organized the development team.
    • Architected and developed an SMS tracking and routing platform.
    Technologies: CentOS 6, Java, EJB 3.0, JBoss, TomCat, Apache, MySQL, Java ME
  • GeneXus Development Team

    1997 - 2002
    ARTech S.A.
    • Maintained GeneXus tool.
    • Developed several new functions and supported the Visual Basic Generator.
    • Created an interface module with Microsoft Office.
    • Built a web components module (reusable web snippets).
    • Helped design a workflow engine.
    Technologies: Prolog, C++, Visual Basic, SQL Server, MySQL

Experience

  • CardNow (Development)

    A virtual, rechargeable credit card.

  • Olha Conta (Development)

    An SMS-based banking alternative for the low-income sector in Brazil.

  • Micropagos (Development)

    The engine behind most of Uruguay's mobile payment systems.

  • Web and Mobile Versions of Perinatal Information System (Development)

    An HTML5 adaptation of an existing system for maternity and birth tracking.

  • MarketMuse (via Toptal) (Development)

    Improved authentication system and site crawler.

Skills

  • Languages

    Visual Basic 6 (VB6), Core Java (J2EE), HTML, Java, Scala, SQL, HTML5, CSS3, CSS, C, C++, XML, Prolog, Haskell, JavaScript, PHP, C#, CoffeeScript
  • Frameworks

    JSP, Hibernate, Play Framework, JPA, JSF, JUnit, Bootstrap 3, jPOS, Cordova, .NET, JBoss Seam, AngularJS, Akka
  • Libraries/APIs

    HTTP API, JAXB, RichFaces, Slick, JAX-WS, JTA, JMS, React, Scala.js, jQuery
  • Tools

    Subversion (SVN), JCE, Eclipse IDE, IntelliJ IDEA, Apache Tomcat, Git, Jira, Gradle, SBT, FogBugz, SoapUI, Apache, Solr
  • Paradigms

    REST, Object-oriented Design (OOD), Concurrent Programming, Functional Reactive Programming, Functional Programming, Scrum, Agile Software Development
  • Platforms

    Java EE, Amazon Web Services (AWS), AWS EC2, Unix, Linux, Jelastic, Heroku
  • Storage

    JBoss AS, MySQL, PouchDB, CouchDB, Microsoft SQL Server, PostgreSQL
  • Other

    AJAX, HTTP, Servlets, SMS, EJB 3, Payment Gateways, HTTPS, POP3, SMTP

Education

  • Partially completed PhD (GPA 4.0) degree in Computer Science/Bioinformatics & Computational Biology
    2002 - 2005
    Iowa State University - Ames, IA
  • Bachelor of Engineering degree in Computer Engineering
    1994 - 2001
    Universidad Católica del Uruguay - Montevideo, Uruguay
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