Raul Guiu

Raul Guiu

Madrid, Spain
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Raul Guiu

Raul Guiu

Madrid, Spain
Member since November 29, 2013
Raul is a software developer with over 15 years of commercial experience. He is technology agnostic, and is enthusiastic about keeping up to date with the latest trends and investigating their possible applications to business problems.
Raul is now available for hire
Portfolio
Experience
  • Java, 14 years
  • Agile Software Development, 6 years
  • JavaScript, 6 years
  • Ruby, 4 years
  • Ruby on Rails, 4 years
  • Python, 3 years
Madrid, Spain
Availability
Part-time
Preferred Environment
IntelliJ, Git, OS X, Linux
The most amazing...
...thing I've won is the Hadoop Challenge Competition, for which the prize was a trip to Las Vegas to attend IBM's Information On Demand (IOD) 2011 conference.
Employment
  • SDE
    Amazon
    2015 - PRESENT
    • Worked on different products of the group.
    Technologies: Java, AWS
  • Java Contractor
    Libon
    2014 - 2015
    • Contributed to the development of back-end APIs used by web, Android, and iOS.
    • Developed new features and made performance improvements.
    • Migrated parts of the data from Oracle to Cassandra.
    • Worked in an Agile environment.
    Technologies: Java, Spring, Hibernate, Cassandra, Oracle
  • Big Data Engineer
    Social Point
    2013 - 2014
    • Built an anomaly detection system.
    • Improved the stability and scalability of a system based in Redis for handling thousands of events per second.
    • Implemented multiple applications for importing data from external sources.
    • Wrote a workshop on MapReduce for the rest of the team with Mincemeat.py.
    • Supported a data visualization tool in PHP and JavaScript.
    Technologies: Python, Git, RedShift, Cassandra
  • Lead Java Developer
    Odobo
    2012 - 2013
    • Identified and developed process improvements and tool requirements including a tool for importing database fixtures. Used multiple sources such as YAML and SQL batch files.
    • Developed a routing application.
    • Implemented a game back-end.
    • Created a web-based application for replaying games.
    • Built an applications deployment framework.
    Technologies: Java (Hibernate, Eclipse Link, Spring, Guice, Maven), Postgres, JavaScript (Node.js, Backbone), Mercurial, Git
  • Senior Ruby on Rails Developer
    Victor Chandler (BetVictor)
    2009 - 2012
    • Developed a betting application in Rails.
    • Implemented performance improvements including page caching (Memcached), combining files (CSS, JavaScript), and using cross domain calls to reduce HTTP header sizes.
    • Handled troubleshooting and bug fixing, including writing scripts for diagnostic purposes.
    • Developed a REST web service in Java, with Oracle and Coherence in the back-end.
    • Supported multiple legacy systems in Java and Ruby.
    Technologies: Ruby, Rails, JavaScript, jQuery, Java, MySQL, Redis, Memcached, Git
  • Java Contractor
    VISA Europe
    2008 - 2009
    • Designed and lead the development of a system for processing non-financial transactions. Simplified and improved the performance of the application by processing a batch of transactions as a single transaction.
    • Developed a test framework for the reporting system by creating a serialized version of the processed data.
    • Implemented multiple reports, with presentation of the data based on existing examples of legacy systems.
    • Implemented an application scaffold to avoid using WebSphere during development.
    • Improved the unit testing framework of the application.
    Technologies: Eclipse, RSA, RUP, OJB, DB2, Maven, ClearCase, ClearQuest
  • Software developer
    Cantor
    2004 - 2006
    • Worked in a spread betting application.
    Technologies: Java, Spring
  • Developer
    Nokia
    2004 - 2004
    • Working as a Java contractor on a gateway that allowed multiple Nokia systems to send SMS messages.
    Technologies: Java,
  • Java Developer
    Netdecisions
    2000 - 2002
    • Implemented an HTML form system using an in-house template system.
    • Started as junior developer, was promoted to lead developer for some projects, and eventually became part of the company's core team.
    • Worked on a distributed component framework (similar to EJB) as part of the company's core team.
    • Worked as lead developer of a project (Pharmalogy) with 10+ developers, contributing to multiple tasks in order to complete the project on time.
    • Developed clickmango.com as a junior Java developer.
    Technologies: Java, JavaScript, Shell Script, MySQL, Oracle, DB2, HTML
Experience
Skills
  • Languages
    Java, Ruby, HTML, Python, JavaScript, CSS
  • Frameworks
    Spring, Ruby on Rails, Flask, Hadoop, Hibernate
  • Storage
    Cassandra, Redis, MySQL, RedShift, Memcached, PostgreSQL, Oracle
  • Tools
    Git, Maven, Shell
  • Paradigms
    Concurrent Programming, Agile Software Development, Functional programming
  • Platforms
    Linux
  • Libraries/APIs
    jQuery, Facebook Ads API, Node.js
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