Work
Sjoerd’s Computerwelten

I am working as an independent software developer and system administrator since 2018. I have done larger projects and I have teached about Linux and open source. Further I have done admistration tasks for different non-profit organisations.

Organisation: Sjoerd's Computerwelten
Website: www.sjoerdscomputerwelten.de
Place: Blomberg, Germany
Activities: - Programming addons for an ERP System
- Wordpress plugin development
- Courses in open source und Linux
- Administration with Nextcloud, email services, computer services
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Creating natural spaces with clay and natural paints

Own company with clay plasters and natural paints.

Organisation: Leembroeders, Natural Life Building
Website: www.naturallifebuilding.de
Place: Haarlem, the Netherlands and Bielefeld, Blomberg, Germany
Activities: - Independent craftsmen
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Web design

I am working as a freelancer in webdesign since 2011. I have experience with Wordpress, Java, HTML und PHP

Organisation: Simply Takken Einfaches Webdesign
Website: www.einfacheswebdesign.de
Place: Haarlem, the Netherlands -- Bielefeld, Blomberg-Dalborn, Germany
Activities: - Independent web designer
- HTML5, CSS3, Javascript, PHP, Wordpress
- Developing a HTML/CSS developer tool in Java
- Customer service
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Second-hand shop „De Schalm“

Working in a second hand shop together with people wo reintegrate into society.

Organisation: Stichting De Schalm other forms of working
Website:
Place: Haarlem, the Netherlands
Activities: - Salesman
- Employee
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Industrial automation

During five years I had been working in a team as a Java developer. We had been working on a Software Application for industrial applications the food industry.

I made experiences in programming with Java und C++, Windows and Linux, Databases (Mysql and MSSQL) und Version control systems ( Subversion und CVS).

Organisation: GTI (nowadays Equans)
Website: https://ww.equans.nl/
Place: Zaandam, the Netherlands
Activities: - Junior java software developer
- Development environment (Windows, Linux, Ant Apache, Eclipse, Netbeans)
- Databases (Mysql, Microsoft SQL) and ORM (Hibernate)
- XML Databindung (JAXB)
- Version control systems (Subversion, CVS)
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