Developed a sales platform used for high-load e-commerce websites, using Laravel framework. • Worked on the platform architecture developing scalable and extensible application• Integrated third party applications such as CRMs to process orders payments• Created unit and integration tests to reduce the number of bugs, improve quality of code• Worked on code refactoring improving performance and reliability of the platformTechnologies used: PHP 7.3, Third party integration, API, Laravel, Blade templates, MySQL, RESTful services, Git, Vagrant, OOP, MVC, design patterns, Homestead

Responsible for creating and maintaining websites using PHP 7.1, Zend framework, JavaScript and various technologies such as Node.JS, React.JS. • Developed multiple websites with Zend Framework• Integrated ElasticSearch as a search engine to improve the performance of a website • Worked on a product, developing and maintaining modules of LiveCMS• Developed and maintained RESTful APIs with Amazon AWS Lambda and Node.JS• Built multiple React.JS componentsTechnologies used: PHP 7.1, JavaScript, Node.JS, React.JS, ElasticSearch, jQuery, MySQL, RESTful services, Third party integration, API, AWS, CSS, SASS, HTML5, Git, Zend, Docker, Vagrant, AJAX, MVC

Led the development of high-load websites. One of our customers was the biggest European website about wine: wein-plus.eu. When working on wine-plus.eu, the following was implemented:• The old, hard to maintain code on PHP4 was completely rewritten to Laravel 5 and PHP 7• Used Laravel 5 framework, MySQL database and ElasticSearch as the basis of back-end, building scalable high-performance website• Data from an old database was migrated to the new structure, using normalization technics • Website parts were divided into independent components, services and plugins so that they could be easily maintained and would be replaceable in the future• Used Bootstrap, JavaScript and jQuery for front-endCreating a new version of wine-plus has dramatically facilitated future maintenance and extensibility, led to reducing database size by dozens of gigabytes. Implementation of ElasticSearch has drastically helped to reduce MySQL database load.Responsibilities:• Involved in the full cycle development of complex websites• Developed website architecture, dividing the website structure to independent components• Built database architecture, migrating data from the old database to the new one, using database normalization • Built RESTful web-services (images storage, emails sending, video parsing)• Worked on website performance optimizing SQL queries• Performed code refactoring so that the website could be easily scalable• Deeply involved in code review and Quality AssuranceTechnologies used: PHP 7.0, MySQL, JavaScript, ElasticSearch, jQuery, Bootstrap, CSS, LESS, HTML5, Laravel 5, Git, OOP, AJAX, MVC, design patterns, Search Engine Optimization, RESTful services, UNIX

Developed and maintained websites using CakePHP 2 framework.• Responsible for full life-cycle application development• Designed the web-application architecture• Performed migration of the websites from CakePHP 1.1 to CakePHP 2• Close cooperation with a team lead, learning advanced project management skillsRebuilding websites led to greater opportunity of extension, easier maintenance and significantly smaller number of bugs.Technologies used: PHP 5.3, JavaScript, jQuery, MySQL, CSS, HTML, CakePHP 2, Git, OOP, AJAX, MVC, design patterns, SMTP, POP3, IMAP, Search Engine Optimization, RESTful services, UNIX

Developed, implemented and customized the accounting software “1C Enterprise” for multiple customers.• Developed and implemented the accounting desktop CRM• Performed product upgrades, testing, bug fixing• Created requirement specifications• Developed user manuals for clientsTechnologies used: OOP, SQL, 1C Enterprise, XML, API

Individually responsible for implementation of the accounting CRM. The implementation allowed to reduce work load for accounts and HR departments by hundreds of hours annually.• Performed analysis of client requirements for the CRM “1C Enterprise”• Created the technical documentation• Developed the accounting desktop CRM• Performed updates of the CRM components• Provided technical support to customersTechnologies used: 1C Enterprise, SQL, OOP, API, XML

Worked on the university’s website, using PHP, SQL, CSS and HTML.• Built university’s website layout, performed markup using CSS and HTML • Developed the back-end of the website Technologies used: PHP 5, MySQL, JavaScript, HTML, CSS, OOP, Linux

• Performed cross-browser markup, converting PSD layouts to HTML pagesTechnologies used: HTML, CSS, Adobe Photoshop