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Membre depuis le 16 septembre 2010
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I am a professional who has been working in the software development field for several years. I have been employed at various large international companies and research facilities and have much experience in the areas of software and web development, web design, usability and interaction design. I possess degrees in both Computer Science and Business Management, both with a certificates for outstanding results. Due to my extensive experience and knowledge it is certain that both the managerial and development parts of the projects will be completed in a professional manner. I have worked for several years as a freelancer, always give my best to finish the job as good and as soon as possible and strive to make my customers happy. So why should you choose me? - I will provide results that are especially tailored for your specific problem or use case as I believe that each project is unique in its own way. - I keep a constant flow of communication with my clients to ensure that the results cover their requirements completely and to prevent miscommunication. - I am extremely flexible, have extensive knowledge in different areas and can advise on many subjects. Looking forward to hearing from you!
$50 USD/hr
15 commentaires
  • 88%Travaux complétés
  • 100%Selon le budget
  • 100%Dans les temps
  • 25%Taux de Réembauche

Éléments du portfolio

Avis récents

  • image de Marcus Ambiental Agent $6100.00 USD

    “Stefan solves everything I imagine. There is nothing he can't do.”

  • image de Fancy C. A-Frame Route Project $1000.00 USD

    “Stefan is a great person to work with, always delivers!”

  • image de Fancy C. Online Order Management System/ Mapping System $3475.00 USD

    “Stefan exceeded expecations and we are still using him for future/current projects!”

  • image de Marcus Delivery Maps Time / Region $340.00 USD

    “I will hire him again for sure! Perfect work!”

  • image de Rx C. Map Website [Sealed]

    “A great coder!”

  • image de Amy G. Google Maps API Custom App $850.00 USD

    “Stefan was most excellent to work with. He was professional, patient, thorough & delivered as promised. It was a pleasure working with him & i hope to do it again in the future!”


Software Developer

Sep 2008 - Jan 2010 (1 year)

Work and responsibilities: Participating in an integration project for a real-time business collaboration tool and SAP Application Server, technologies - Java, JSF, OSGi --- Development of extensions using Ruby on Rails and JavaScript --- Implementation of a EJB Browser application for the SAP Application Server Java (technologies: Java, EJB, JMX, Web Dynpro) --- Evaluation of Open Source Persistence Providers (Thesis)

Software and Web Developer

Nov 2007 - Feb 2008 (3 months)

Work and responsibilities: Implementation of additional modules for a Knowledge Management system --- Evaluation of diverse data mining algorithms --- Used technologies - Java, SQL, Javascript(Dojo)

Web Developer

Apr 2007 - Oct 2007 (6 months)

Work and responsibilities: Participated in the development of an E-Learning platform for the UML language --- Creation of a dynamic web content management interface using Ajax--- Used technologies - xHTML, PHP, CSS, Javascript, MySQL, XML, XSLT, Flash

Software and Web Developer

Apr 2006 - Jan 2012 (5 years)

AJAX-based Rich Internet Applications --- Web-based GIS software --- Bespoke business solutions


Master of Business Administration

2010 - 2011 (12 months)

Master of Science

2005 - 2009 (4 years)


Best graduate (2010)

Ergosign GmbH

This certificate is given to the graduate with best results in the whole course of studies.


Entrepreneur's General Personality Traits and their Influence on Company Culture


  • HTML Level 1
  • US English Level 1
  • jQuery 1


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