Dmitry StogovPrincipal Engineer, Zend by Perforce Dmitry started using PHP in 2000 and very soon turned into an internal PHP developer. He lead the Turck MMCache project for PHP-4 (which is similar to modern opcache). In 2003, Dmitry joined Zend and helped develop most of the core PHP subsystems during PHP-5's life. Later, Dmitry lead the PHPNG project, which brought the speed of PHP-7 to a new level and helped contribute to the release's success. Currently, Dmitry works at Zend by Perforce as a Principal Engineer and leads the development of the JIT compiler for PHP. He lives and works from his home in St. Petersburg, Russia.