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Martijn Vos

Web developer, Computer Software

Hi, I'm Martijn Vos. I develop complex web apps and other interactive software

Martijn Vos's Bio:

Martijn Vos is a freelance programmer, web developer and entrepreneur. He loves developing highly interactive websites, mobile websites and mobile apps. He has developed a search engine for investment funds for ABN AMRO, he's worked on an interactive search for tires for www.alles-over-banden.nl, has worked on the Reisplanner for the Nederlandse Spoorwegen, and many other web sites. He's equally at home with backend code as with Javascript, Ajax and JQuery. Familiar with many standard technologies, his forte is solving complex problems where the standard solutions might not be good enough. He likes dealing with mathematics and complex logic, and can turn your complex problems into simple ones. He likes dealing with business logic, but also with complex UI interactions. He's also interested in AI and game design and development.

Martijn Vos's Experience:

  • Freelance Ruby web developer at Jewel Labs B.V.

    July 2012 - September 2012

    I handled the integration of their ticketing system with the Maccsbox service for film distributors, so all current movies will be automatically imported and available to cinemas, and they can report the number of tickets sold back to Maccsbox. The job involved Ruby, Rails, XML parsing, XML generation, some Javascript and Prototype.js, and AWS cloud hosting.

  • Freelance web + backend improvements at Quince / WeCompany

    April 2012 - April 2012

    Adding a new job type to their phone retail portal, the SOAP service it talks to, and the job processors that send the data to an ancient website of a major telco. I worked on all parts of the system which consists of three different code bases: Groovy customer-facing website, Java server and Ruby job handlers. I've worked on this project before in a salaried position, and they rehired me as a freelancer for this particular job. The job involved Groovy/Grails, SOAP (Apache CXF), Java, Wicket, Ruby and Watir.

  • Webdeveloper at Quince

    November 2009 - November 2011

    Building and maintaining a wide variety of websites for various customers. Highly interactive (Ajax) websites for a variety of customers, including Goodyear and KPN, mostly using Groovy/Grails and Java, but also some Ruby and even a little bit of PHP. A lot of front-end work in Javascript, JQuery, HTML and CSS, and some minor exposure to ActionScript. I've worked with various Google APIs on both the frontend and the backend. Technologies: Groovy, Grails, Hibernate, Spring, JQuery, JavaScript, HTML, CSS, Google APIs

  • Ruby Webdeveloper at Glubble

    October 2008 - October 2009

    Building and maintaining a social network site for families. Features included connecting with a children's browser (Firefox plugin), messaging and photo sharing. My work included backend work in Ruby, like financial transactions (PayPal) and database statistics/analysis on usage; as well as front-end work in javascript, AJAX, jQuery, and of course HTML and CSS. Technologies: Ruby on Rails, JQuery, JavaScript, SQL, Ajax, HTML, CSS

  • Java Web Developer at Hippo

    December 2004 - September 2008

    Building and maintaining websites for a wide variety of customers, using and developing an enterprise CMS. Worked on highly content-driven websites, where the content was maintained by Hippo CMS. Websites included small companies, foundations, municipal governments, but also a few large companies, including VNU Europe (with the CMS containing hundreds of thousands of documents); and ABN AMRO, where I did on-site consultancy, guiding their programmers in working with our CMS, and developing a highly interactive javascript-driven search engine for their investment funds. Technologies: Java, XML, HTML, Cocoon, Hippo, JavaScript, XSLT

  • Software developer at Vermaase Insurance Automation

    May 2001 - September 2003

    Developing quotation (offerte) software for life insurances. Used an in-house developed Visual C++ framework to develop a large software package for Delta Lloyd, intended for intermediaries to use it to calculate and print quotations for a variety of pension and other life insurance policies. Work included the structure of and relationships between various insurance policies and their elements, as well as integrating the calculations for cost estimations. Technologies: Visual C++

  • Helpdesk at Vrije Universiteit Amsterdam

    1996 - 2001

  • Java ontwikkelaar at NS Reizigers

    March 2013

  • Founder, Web/app developer at Vosdev

    January 2012

    Self-employed. Freelance consultancy and web development, as well as developing mobile apps. I'm available for both small (days, weeks) and medium (months, up to half a year) projects, involving javascript/JQuery, backend Ruby, Groovy and Java work. If I'd have to pick an area of expertise, it's handling and redesigning complexity, whether it's complex user interaction, getting a grip on complex business logic, or working the underlying framework to add new capabilities. My freelance jobs on location under Vosdev are listed separately below. Beyond that I've been exploring various mobile technologies, building my own apps, investigating new languages, and following several workshops, particularly at Appsterdam.

Martijn Vos's Education:

  • Vrije Universiteit Amsterdam

    1992 – 2000

Martijn Vos's Interests & Activities:

Web development, programming, Java, Groovy, Ruby, Scala, javascript, jquery, Ruby on Rails, Grails, Wicket, Spring MVC, sailing, games, RPGs, roleplaying, strategy games, HEMA, medieval sword fighting, Christianity, science, politics, environment, libertarianism, socialism, ZZPer, links, geloof, wetenschap




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