current status
- LAMP software architect Liip since 2008
nationality
- german
- greencard holder
skills
- technical
- programming:
- advanced skills: PHP, SQL
- midlevel skills: Javascript, (X)HTML, XML and Web Services
- basic skills: UML(2), Perl, Java, and C
- database: MySQL, SQLite, Oracle, PostGreSQL
- operating systems: Windows, Linux
- other: database and system design, free and open source development
- programming:
- languages
- german: fluent in speech and writing
- english: fluent in speech and writing
- french: basic knowledge
- other
- project management, organization, teaching, technical writing
education
- school
- highschool diploma
- german abitur
- german vordiplom in computer science
- degree in computer science
- certifications
- PHP Zend Certified Engineer
- MySQL 5.0 Certified Developer (Certificate ID: 214989087, Password: 1234)
experience
- computer sales
- computer repair
- project management
From 2000 until 2005 I was a co-founder of a company that specialized in internet related services where I was chief software architect and project manager. At peak times the company employed upto 10 people in total. Starting fall 2006 I lead the technical aspects of several large projects as an employee to Optaros.
- web application development
I worked on architecting and implementing several different large scale web application projects. Mostly using Perl/PHP, MySQL (in some cases Oracle and SQLite), Apache and Linux/Windows. Among other things I was chief software architects in the following projects:
- online travel website using the Sabre C API
- online application to generate Word documents for testing procedures in the pharmaceutical industry
- online reporting, planning and ressource management in the aviation industry
- official PHP Extension and Application Repository, where I maintain several packages. I have also been very much involved in the project organization.
- portal site for wifi access in hotels, leveraging PHP together with a Java backend with heavy use of ajax and mashups
- messaging (sms/mms) portal based on PHP and Javascript using JSON for the data exchange
memberships
- official member of pear.php.net
- (re-)initiator of the PHP User Group Berlin
- initial member of the PEAR Group (stepped down due to time constraints)
- initial member of the PEAR QA team (stepped down due to time constraints)
- Free Software Foundation Europe fellow
- ADFC member
- BUND member
- DJ Dahlem ultimate frisbee club
- Klopstock ultimate frisbee club
- Radical ultimate frisbee club
publications:
- on PEAR::MDB - international php magazine (issue: 01/03)
- on PEAR::MDB - German php magazine (issue: 04/03)
- on PEAR::LiveUser - international php magazine (issue: 06/04)
- co-author PEAR group response - German php magazine (issue: 07/04)
- on database abstraction - php|architect (issue: 04/05)
- on PEAR - international php magazine (issue: 04/05)
- on Synergies and Opportunities: Open Source and Commercial Vendors - A study of the relational database market. - diploma thesis paper at the TU Berlin 2006
open source community activities
- international php conference in Frankfurt 2002: PEAR booth organizer
- international php conference spring edition in Amsterdam 2003, Netherlands: PEAR booth and meeting organizer
- LinuxTag 2003 in Karlsruhe: co-organizer of the php database maintainer meeting
- international php conference in Frankfurt 2003: PEAR booth organizer
- international php conference spring edition in Amsterdam 2004, Netherlands: PEAR booth and meeting organizer, one day power workshop on PEAR, session on PEAR::LiveUser
- LinuxTag 2004 in Karlsruhe: session on PEAR::MDB2, co-organizer of the php database maintainer meeting
- Systems 2004 in Munich: session on database abstraction
- international php conference in Frankfurt 2004: member of the conference board, one day power workshop on PEAR, organizer of the PECL::pdo meeting
- PHP conference in Budapest 2005, Hungary: talks on PEAR and database abstraction
- php|tropics 2005 conference in Cancun, Mexico: talks on PEAR, database abstraction and PEAR::LiveUser
- php|works 2005 conference in Toronto, Canada: talks on PEAR, SQL tuning and portability and PEAR::LiveUser
- international php conference in Frankfurt 2005: one day powerworkshop on relational databases, talks on PEAR and SQL tuning and portability
- php|tek 2006 in Orlando: talks on database schema deployment and RDBMS internals
- Google Summer of Code 2006 mentor: OpenDocument PEAR package and PEAR::MDB2_Schema DML extentions
- php|tek 2007 in Chicago: talks on database locking and interacting with OOP
- Google Summer of Code 2007 mentor for Doctrine
- international PHP conference 2007 in Frankfurt talking about database design patterns
- ProPHP conference 2007 in Sao Paulo keynote on PHP6 and how to participate in the PHP community
- PHP Quebec 2008 in Montreal talk about Database and SQL (un)patterns
- Initiator of emPHPower