Crypto Pay in & Pay out (Bitcoin, Tron (TRC20), Ethereum (ERC20), LTC)Built from scratch a payment gateway that allows merchants to automate the processes of accepting cryptocurrency payments and payouts from their customers

Interchange fee system:- Data processing time was reduced by 3 times due to optimization of algorithms and SQL queries, which led to 100% timely provision of data for merchants.- The code was rewritten from Java to Golang, which made it easier for new people to integrate into the system.- Due to 100% refactoring, the stability of the system has increased from 3 incidents per week to 0 incidents.

- Created e2e ecosystem for buy&sell cryptocurrencies (BTC, ETH, BAT, USDT, ALGO, TRX);- Set up Widget that is officially recognised by Binance, Bitfinex, Trust Wallet, OKEx and many others;- Integrated Mercuryo into a number of Exchanges, like: Kraken, Liquid, Coinbase, Exmo, Bitfinex;- Enabled KYC with Sum & Substance and Jumio and developed antifraud system;- Designed&implemented cash flow system btw exchanges, fiats and nodes.

The only one in Russia who teaches CS50 (https://cs50.org/map.html)My website of course http://cs50x.ru

Built from scratch online system for context advertisment in Yandex Direct and Google AdWords: - Automatic keyword selection for ads - Automatic ad generation - Negative Suggestions - Pay only for referred visitors - Automate campaign management through Excel - Professional bid management modes - The use of neural networks to increase the number of clicks with a constant budget - Writing and A / B testing ads, quick links in auto mode

Lovetime.com - Dating start-up 2013-2014, >6 mln. registered users. Analytics, planning and implementation for Email, iOS and Android highload (>400k pushes per day):1 Deliverability (before: most emails landed in spam)- implemented that >85% of emails reched inbox of all major email services (gmail, yahoo, hotmail, mail.ru, yandex.ru, rambler.ru) in 20 languages 2 Response quality (before: low rate of opening&clicks)- I managed to raise the number of openings and clicks signnificantly by re-designing texts, order and quantity of emails. Users were segmented and limits for distributions customized.3 Timing (long email delivery time, low receipt rate)- I developed delivery system that alowed not to lose emails and deliver up to 1mln emails per day, which can be easily scaled, incl. for high volumes.- monitoring of openings and clicks in tables and charts.- a/b testing of emails.- bounces parcing and fbl.

Built from scratch medweb.ru

Built from scratch online system for context advertisement in Yandex Direct and Google AdWords.- Participated in the development and testing of new functions.- Participated in the release of a new version of the project, in which most of the functions are automated.- Participated in the transfer of the project to a new technological platform, which significantly improved the quality of the code and increased the speed of development.

- Creation and support of an internal Web-application, which is a complex solution of the main business and management processes of the Russian Standard group of companies- Approval of costs for a group of companies- Coordination of new suppliers, contracts, sales forecasts with a multi-level authorization system- Data collection and analytics for budget control- Creation of a variety of reporting systems- Maintaining the document flow function- Maintaining information function (sections news, company policy, forum, employees, vacancies)- Server administration- Development of a development strategy for a Web application of a group of companies, approaches and measures for its implementation- Ensuring the smooth operation of the Web application.- Organization of interaction with business customers, performers and related departmentsACHIEVEMENTS:- Implemented synchronization of a Web application with SAP and with Active Directory (authorization under a domain login and password, synchronization of employees)- Created a comprehensive software product for the development of new brands of products (from the idea of ​​a brand to its production and delivery to the end consumer)

• Creation and support of Internet sites:http://www.5ballov.ru- Development of the contest Miss and Mister 5 points (voting, both through the website and by sms).- Setting up a forum and transferring all messages from the old forum to the new one (cross-domain authorization).- Creation of dictionaries (relevant dictionary search).- Change of design (based on ready-made HTML files).ACHIEVEMENTS:- Optimized the search engine for the abstracts database based on the mnogosearch search engine.- Developed a mechanism for online verification of abstracts for uniqueness when uploading them.

First commercial project http://portal11.ru/