Developing since 1999. I bring skills in many areas of the back-end. Extensive experience with PHP, SQL, Nginx, Linux, FreeBSD, MySQL, Hadoop, big data, scalability, high-loaded environments, security, search engines internals and crawlers, fast front-ends, CDNs. I`m a hungry quick learner. Development skills: PHP, SQL, HTML, CSS, Lua, C, Bash, Python. System engineering skills: FreeBSD, Linux (Debian/Ubuntu, RHEL/CentOS), Nginx, PHP-FPM/Swoole, HHVM, Docker/Swarm, ScyllaDB, MySQL, Percona XtraDB Cluster, Galera Cluster, Openresty/Lua, busy Revive adserver, busy Wordpress/Multisite, malware removal, shell scripting, firewalls (ipfw/iptables), memcached, Redis, Rabbitmq, Apache HTTPD, PostgreSQL 9-11, Dataparksearch, DPDK, public clouds, cluster computing, caching and more. Professional interests: the architecture of high-loaded web applications, high-loaded server environments, distributed computing, userland networking, kernel bypass techniques, big-data processing, OS network stack tuning; search engines, crawlers, data mining; app level DDoS protection and servers security. Personal interests: raising a son, snowboarding, mtb, hiking, motorcycling. ©