Avito is world's second biggest classified platform. It also ranks in top 10 Russia's and top 100 world's most visited websites.I work in Avito as a Senior Software engineer. Here I specialize in creating rich and customizable interface solutions both for desktop and mobile devices.Technologies: Javascript, React, Redux, Lerna, Figma, Miro, NodeJS, PHP, Go.- Developed dozens of web components and pages in React to help our clients seamlessly publish and search items on the website.- Helped building company's general-purpose UI kit- Refactored monolith frontend scripts (jQuery) into Lerna-based packages monorepository- Refactored PHP monolith backend into Kubernetes microservices written in NodeJS and Go- Conducted several dozens of interviews (mostly for frontend positions)- Took part in recording a frontend video course for fresh hires (as a narrator)- Helped Tech PR team to organize conferences

Kaspersky is a global leader in cyber security applications and services.I worked at Kaspersky Fraud Prevention department and developed advanced B2B fraud detection solutions for the web and mobile applications.Technologies: Javascript, React, Redux, Material UI, Babel, Rollup, Node.JS, Express, MongoDB, Redis, RabbitMQ, Docker, Kubernetes.- Developed modular tracking and analytics scripts for the web to analyze user's behavior and fingerprints. - Tuned and profiled Javascript performance to meet strict customer's performance requirements.- Optimized Javascript code to as run fast and efficient as possible on every device and in every browser (that included Internet Explorer 5.5, Opera mini, etc.)- Redesigned and rebuilt incident administration panel completely from scratch (moved from legacy AngularJS v1 to React + Material UI)- Refactored legacy Node.JS backend in order to support efficient scaling using RabbitMQ, Docker and Kubernetes.- Wrote more than a thousand unit tests to allow for 100% backend- and 95% frontend code coverage. This drastically reduced manual testing and led to an overall faster release cycle.- Conducted dozens of interviews for frontend positions, mentored and taught new developers.

Teletrade is one of the leading Forex brokers in CIS and EU.As a frontend developer, I've been developing and supporting core and backoffice systems for the company, including CRM, website and trader terminal (web).Technologies: Javascript, AngularJS, jQuery, HTML5, ExtJS, PHP, Jenkins, Nginx, OracleDB, PL/SQL.- Refactored company's CRM system using a custom JavaScript framework (that I've designed). It allowed creating new pages and views much faster using the UI kit, at the same time improving page loading time and performance due to caching, SPA and preload techniques.- Developed a mobile-friendly UIs for the CRM and company's website using AngularJS v1.- Supported nginx, PHP, PL/SQL backend. Configured load scaling, access control,monitoring and alerting tools.- Bootstrapped and configured a proper CI system throughout the company (Jenkins). It drastically improved releases speed and stability.- Implemented and supported git flow in my team.- Mentored junior frontend developers.