The One Man Software Development Army
Hamburg Area, Germany
- Current
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- Owner & Head Ninja at Springenwerk
- Recommended
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8 people have recommended Johannes - Connections
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Johannes Fahrenkrug’s Summary
I'm a passionate freelance software dude and security consultant. I started programming when I was 12, moved through some years of Java, web development and ANSI C development on Linux and OS/2 (yes, it just won't die). I finally started full time freelancing in the summer of 2007.
Now I enjoy making the newest technologies usable to my customers. I think it's important never to cling to "old" technologies just because you know them if something new gets the job done more efficiently and elegantly. So I guess I have a fascination for learning new languages and frameworks. My languages of choice are Ruby, Objective-C/Cocoa and JavaScript at the moment.
I also do international consulting work in the network and web application security field, including security audits and code reviews. Major international companies are among my clients.
Johannes Fahrenkrug’s Specialties:
iPhone applications, Objective-C, Cocoa, Cappuccino, Ruby, Ruby On Rails, Java, C/C++, Cocoa Touch, , Python, OpenSocial, jQuery, PHP, HTML, XML, SOAP, CSS, JavaScript, Wicket, Hibernate, SQL, DB2, Web and Desktop UI Design, Ajax, Design Patterns, Eclipse, CVS, Subversion, Unix, Solaris, Linux, OS/2, Mac OS X, network security, web security, Facebook, OO, OOP, Testing
Johannes Fahrenkrug’s Experience
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Owner & Head Ninja
Springenwerk
(Computer Software industry)
November 2004 — Present (5 years 2 months)
International security consulting work, including web application and network security. Received public acknowledgments from Google (http://www.google.com/corporate/security.html), Apple Computer(http://docs.info.apple.com/article.html?artnum=302530) and Real Networks (http://service.real.com/help/faq/security/web/20050415_myaccount/de/)
Software development: Ruby, Ruby On Rails, OpenSocial, Facebook, C/C++, Java, Python, Objective-C & Cocoa, web technologies including Ajax.
