Team Developers

  • Jan Beernink, MSc Medior Java Developer
    Jan is a strongly technical inclined and serious Java developer. After finishing his studies at the Free University of Amsterdam, Jan gained practical experience with Java at a consultancy firm and obtained Java certificates like SCJP and SCDJWS with truly amazing scores. Right after starting at M4N, Jan additionally obtained his SCBCD with an amazing score again. Currently Jan is working at the very heart of the back-bone of the M4N software system and is employing his talents with respect to spotting incorrect code to help one of the pre-junior java developers.

  • Dennis Brouwer Sr. Java Tester
    For everything that needs to be tested in some way, Dennis is the guy to go to. He likes to tune servers and systems to the max by tweaking them over and over again and not letting a system rest before every button has been tried and every wheel has been turned. Give him an app and eventually smoke will come out of it. Apart from this, Dennis monitors overall system performance, keeps a close eye on naming consistency for artefacts in our main DB, sets up our development and beta environments, prepares scripts for hardware or service migrations and, last but not least, participates in the development process with a little Java programming here and there. Is there anything Dennis doesn’t do?

  • Willem Cazander Sr. Datafeeds Developer / System administrator / Linux guru
    Willem is the lead developer for the Datafeeds project team, and the author of the VASC! framework, a UI generator based on annotations on model classes using the JSF Java API directly, without any need for Facelets or JSP. As if that isn’t enough already, Willem is also the head system administrator. In this last role Willem oversees the structure of the server park on which the main application that we build (M4N) runs, as well as the internal IT structure of our office.

  • Hongqin Chen, MSc Medior Java Developer
    Hongqin holds a Master of Science degree for Computer Science (University of Leiden) and works with us as a Java developer. Hongqin has developed our internal lunch management application (using a combination of JSF and Spring) and is the main developer of an important part of the M4N architecture: the Notification System (a JMS/EJB3 based central hub for collecting and processing notifications originating from other parts of the application). She is also the main person to go to for knowledge about the M4N navigation system, and for lightning quick fixes.

  • Robin Eggenkamp, BSc Junior Java Developer
    Jack of all trades Robin is a master student of Software Engineering at the University of Amsterdam. Next to his studies he’s a part-time member of the JDevelopment team. Together with a number of fellow students, Robin has modernized M4N’s e-mail functionality thoroughly using AJAX and JSF together with the RichFaces component library. Robin has the talent of making himself at home with a new technique in the blink of an eye and applying it in a natural way. Besides Java developer, Robin is also an iPhone developer. He sells iPhone apps in Apple’s App store, and has won one of only 400 student scholarships to attend the 2009 Apple WWDC in San Francisco.

  • Jasper Floor Medior Java Developer
    After his studies at the Free University of Amsterdam, Jasper obtained experience at different ICT companies both as consultant and as a programmer. His extensive experience with Java and his sound theoretical background make him a valuable asset for the JDevelopment team. Coming from a strong Struts background, Jasper is currently engaged in learning about Java Server Faces, and developing and improving pages written with this technology. Like Hongqin, Jasper is a master of fast, structural software fixes.

  • Klaas Joosten, Ing. Technical Manager / CTO
    Klaas is the Chief Technical Officer of Mbuyu, the company that among employs JDevelopment, among other resources. Klaas creates and manages the requirements, monitors what the technical trends are and functions as a general visionary for the high-level direction in which we are moving our products. Besides JDevelopment, Klaas also manages a PHP team that works on Mbuyu’s next major web project.

  • Edwin Metselaar, MSc Interface Specialist / Product Developer / Projectmanager
    Edwin functions as a bridge between the commercial staff at M4N and the JDevelopment team. Together with Klaas and Arjan, he looks at the requirements (open tickets) and organizes these according to relevance. Together with Dennis, Edwin tests new functionality and new features and negotiates with both sides about adjustments and tweaks.

  • Arjan Tijms, MSc Lead Developer/Software Architect
    The overall software architecture and the concrete realization of our development process are areas Arjan thinks about. As Lead Developer of the M4N team, Arjan is responsible for a coherent structure of the source code, as well as training and coaching the other developers in his team. Arjan graduated together with Hongqin at the University of Leiden to obtain his MSc (Computer Science, High performance computing).

  • Dineke Tuinhof, MSc Junior Java Developer
    Dineke graduated in Artificial Intelligence at the Free University of Amsterdam and works with us Java developer. She’s highly intellectual and investigative. Currently she’s learning about the architecture and details of the Java EE platform. In M4N, Dineke likes to look at the actual meaning of numbers to humans. She rewrote the algorithms of our rating system, and recently re-engineered the way we track status codes for our statistics. She’s on her way to become the best female programmer of The Netherlands.

  • Paul Wiebes System Administrator / Office System Manager
    Paul is our System Administrator and on-the-scene paramedic for any possible hard- and software problems. He is interested in all kinds of open source solutions for our daily software usage. He knows a lot about his favorite OS, Linux, but helps all members of staff patiently with installing and configuring any sort of hard- and software.

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