PHP Developer and Head of Development at werkenntwen

Permanent Position

Role & Contributions:

Led architecture modernization, transforming a procedural codebase to an object-oriented, multi-layered MVC pattern.
Migrated core systems to Zend Framework and developed REST-compliant APIs for mobile platforms.
Implemented scaling solutions including table partitioning and extensive Memcache deployment.
Deployed comprehensive security measures (XSS, CSRF, SQL-injection prevention, ACL).
As Head of Development, managed change requests, designed software architecture, and led release management.
Introduced Continuous Integration with Jenkins and established PHPUnit testing with high code coverage.

Business Impact:

Successfully scaled the platform to support over 9 million registered users.
Reduced page load times by 60% through architecture modernization.
Improved development processes by introducing automated and manual testing procedures.
Managed and mentored development teams, fostering a high-performance environment.

Key Technologies: PHP, Zend Framework, MySQL, Memcache, Jenkins, PHPUnit, Selenium, REST API, Sphinx.