More than 20 years of experience in software development. Created high loaded, real-time web applications, complex back-end management systems including content management, e-commerce, games, chats, customer relations and communication interfaces. The projects are based on conjunction various web development technologies. PHP (pure PHP with OOP, PHP with frameworks: Laravel, Symfony and automating tests: PHPUnit), SQL (generic SQL, MySQL, PostgreSQL, ORM), document-oriented databases (MongoDB, DynamoDB), JavaScript (generic JavaScript, AJAX), JQuery, Node.js, Vue.js/Vuex, React/Redux, Comet server (real-time data streaming), Sockets, XHTML / HTML, CSS, XML and SVN / GIT are used. Designed applications with Monolithic, Microservices and Event-driven architectures for various small companies and individuals using AWS services (Lambda, EC2, S3, DynamoDB, SNS, SQS, RDS), GraphQL, RESTful API, RabbitMQ, Kafka, Redis, CloudWatch. Professional Skills Programming Languages/Technologies: PHP, Pure PHP and PHP with OOP, JavaScript, Node.js, AJAX, XML / XHTML / HTML, SQL, Generic SQL programming, MySQL, PostgreSQL, Interbas, ORM, CSS, Comet solutions (real-time data streaming based on PHP and AJAX which allows to have thousands of open connections at the same time), PHPUnit, MVC (Model View Controller), SVN, GIT, Gmail API