— Performance optimization— Code review, implementation design review, — Making implementation design and developing REST API for backend of shop.mts.ru— Splitting legacy monolith to separate services for shop.mts.ru— Onboarding and helping to developersCurrent stack: PHP 7.4, Phalcon, Symfony components, MySQL 5.7, RabbitMQ, Redis, ELK, Kafka

Leading development of several highload e-commerce sites: eldorado.ru and shop.mts.ruMaking implementation design, DB structure designTeam leading, doing code review, help for team developersInterviewing of backend and frontend developersPerformance optimization

Taking a part in development of several e-commerce web sitesDeveloping pages and services using php and Bitrix CMS, making CSS layouts and integrating it as templates, performance optimization

Developing a single page application for self-service terminals installed in the phone shops, where customers can choose, compare and buy a phone.There was Vanilla JS code using the Google Closure Library, Stylus as CSS-preprocessor, gulp and Google Closure Compiler for building app, npm for installing dependencies, git for version control

– Teamlead a small team of 3-5 programmers;– Hiring programmers: reviewing resumes, conducting technical interviews;– Onboarding and coaching new team members;– Setting and decomposition of tasks;– Code review.

Webmaster.Spb was a small studio that developed internet portals for the online publishing house MediaCartel. They had:— News portal - https://gazeta.spb.ru (still working now)— City events portal - https://cityspb.ru— Real estate portal - https://nevastroyka.ru— Portals and services for selecting credit and banking products - https://moneyzzz.ru and https://allcredits.spb.ru.— their own banner network.My responsibilities included development of new pages and services, as well as creation of portals as a whole (e.g. cityspb.ru), and also bugfixing and performance optimization.Stack: Perl, MySQL, Redis, HTML, CSS, JavaScript, jQuery, jQuery modules, Backbone.JS, PHP, Bitrix.

I was the only developer in the Internet sales department of the chain of computer hardware stores in St. Petersburg called «ЦиFры» (Tsyfry).Load performance values:– 25k of product positions;– 10k unique visitors per day– up to 200 unique visitors at the moment.My duties were to create new functionality, support and bug fixing.The features I implemented:– Exchanges with backend ERP/CRM-systems;– Search on products;– Collecting and aggregation of user metrics;– Collecting and processing competitor product price values;– Content management automation.The most interesting feature was creating the system of online consulting. There were no ready solutions we could buy and use at that moment. The first online-consulting services you could embed to your site appeared approximately a year later.Stack: php, mysql, javascript, ajax, smarty, html, css

My first job as web/database developer. Bitrain was a small studio, with a team of 5 developers.I created 30+ internet sites using self-written CMS (php, mysql)The most interesting project was the first food delivery online aggregator in Saint-Petersburg: https://www.nakormim-spb.ru (still opens now)