Curriculum Vitae



Skill Matrix

Ruby on Rails 5/5 (12 years)
Objective-C & iOS 5/5 (7 years)
Swift & iOS 5/5 (3 years)
Android 4/5 (6 years)
Java 5/5 (15 years)
Java Enterprise 3/5 (14 years)
Agile/TDD/Scrum 5/5 (10 years)
HTML/CSS 4/5 (20 years)
Javascript (Client) 5/5 (19 years)
NodeJS 5/5 (6 years)
On a scale of 1 to 5 / 5 representing an "Expert level"

Professional experience (Roles & ventures)

Senior Software Developer / IT Consultant (since 04/2006)
Independent Contractor/Freelancer, Cologne/Germany

Scope of work:
Development of webapplications and apps including consulting, development, deployment, scaling and optimization

CTO (05/2004 - 03/2006)
Netempire AG, Cologne/Germany

Scope of work:
IT Consulting (Java Enterprise), technical project management and complex software development. Coordination of the IT strategy of the company.

Head of software development/Technical lead (01/2003 - 05/2004)
Netempire AG, Cologne/Germany

Scope of work:
Technical project management and software development of webapplications and webservices (mostly Java Enterprise)

Senior Software Engineer (8/2002 - 12/2002)
clicktivities AG, Düsseldorf/Germany

Scope of work:
Development of framework based Java enterprise webapplications

Head of software deveopment/Technical Lead (09/2000 - 07/2002)
pawils GmbH / dot's n daisies GmbH, Essen/Germany

Scope of work:
Leading role in the design and development of a portal and community framework product

Senior Webdeveloper (05/2000 - 08/2000)
more interactive GmbH, Düsseldorf/Germany

Scope of work:
Software development for portal web applications

Client projects:
Sony Germany Microsites
WAP/Mobile Portal für c-com one
Norisbank
Internal tools

Managing director (CTO)/Co-founder (01/1999 - 05/2000)
eins punkt null GmbH, Cologne/Germany

Scope of work:
Business development and technical project management (including software development) for various clients mostly from the new economy area

Co-founder of DINA6 AG, Berlin/Germany

Clients:
Volvo GmbH, Germany
Steilman Corporate Fashion
Dorint Hotels
ebay/alando Germany
dooyoo.de
vaybee.de
urbia.de
dina6 AG
Norisbank for more-interactive
and more...

Online Producer/Webdeveloper (Sole proprietor) (01/1998 - 12/1998)
kiessler newmedia, Essen/Germany

Scope of work:
Project management and coordination of the development of web-based applications and websites

Clients:
Canon GmbH, Germany for BMZ!FCA/Profact
Dorint Hotels for rationet AG (Leverkusen, Deutschland)
Daihatsu Deutschland GmbH for rationet AG (Leverkusen, Deutschland)
and more...

Online Producer/Webdeveloper (02/1997 - 12/1998)
Independent Contractor/Freelancer, Essen/Germany

Scope of work:
Design and development of web-based applications and websites

Employers / Clients:
BBDO Interactive (Düsseldorf/Germany)
Nordis, Heidelbach & Sawatzki (Essen/Germany)
BMZ!FCA Dsseldorf/Profact (Essen/Germany)
agenda-media (Münster/Germany)
BOV (Essen/Germany)
and more...

Education

Sun J2EE Web Component Developer Certification (12/2004)
Sun
LPI (Linux) Level 1 Certification (11/2004)
Linux Professional Institute
BA Computer Sciences* (2004)
Fernuniversität Hagen, Hagen/Germany
SCJP Certification / Sun Certified Java Programmer (08/2003)
Sun
BWL studies (Business)* (2001 - 2002)
Fernuniversität Hagen, Hagen/Germany
Sociology studies* (1995 - 1996)
Ruhr-Universität Bochum, Bochum/Germany
Highschool Graduation (Abitur) (1994)
Gymnasium Essen-Werden, Essen/Germany
Highschool Graduation (Exchange student) (1991)
Darrington Highschool, Darrington, WA, USA
* Attendance in university studies