Experience

Coin Metrics

• United States
• Financial Services
• 1 - 100 Employee

• VP of Engineering

  • Jan 2021 - Present

  What I've done:- Created "Chain Monitor" Coin Metrics product (FARUM).- Establishing various company-wide engineering standards, reliability guidelines, API design specifications, common libraries, and services to maintain consistency between different projects and teams.- Software engineering and scaling strategy, making architectural decisions.- Software engineering oversight and reducing the complexity and maintainability of solutions.- Incident prediction, resolving, and troubleshooting.- Scaling engineering org structure, interviewing candidates, and mentoring technical leaders.- Got O-1, EB-2 NIW (US) & Global Talent (UK) visas and ultimately moved to Boston. Show less

• Lead Software Engineer

  • Nov 2019 - Jan 2021

  What I've done:- Created a highly loaded, distributed, and reliable Coin Metrics API (API v4)- Created an Access Management System for API keys (AMS API)- Created a Universal Blockchain Explorer API (ATLAS API)- Created a Distributed rate-limiting system for API calls



Chatovod

• Belgium
• Facilities Services

• Founder, Lead Software Engineer

  • Oct 2009 - Dec 2022

  The most popular Russian chat room service. It also strives to be the world's best chat service. https://chatovod.com (International), https://chatovod.ru (Russian) Tech: Java, an in-house chat server handles more than 300k active HTTP connections per server with more than 20k RPS. The most popular Russian chat room service. It also strives to be the world's best chat service. https://chatovod.com (International), https://chatovod.ru (Russian) Tech: Java, an in-house chat server handles more than 300k active HTTP connections per server with more than 20k RPS.



Pixonic

• Cyprus
• Technology, Information and Internet
• 100 - 200 Employee

• Lead Software Engineer

  • Jun 2016 - Nov 2019

  Big data. Highload. Distributed systems. Analytics. Java. --- What I've done: - The architecture of in-house distributed, high-load, fault-tolerant analytical system AppMetr. It handles more than 1 billion events per day, stores more than 100 Tb of data. The main features are an efficient in-house columnar database (I've created it), near real-time analytics, schemaless custom events, powerful UI for the end-users. The system provides a fast way to filter, group, analyze a huge amount of events from mobile devices and servers in seconds. It allows inspecting the lifecycle of an individual user or some user group. Besides base features, it provides advanced analytics like cohort analysis, user retention analysis, etc. We use Apache Cassandra as cold storage, Apache Kafka for queues, and in-house Java software for high-performance querying. - Manage a team of 5 Software Engineers - Speaker at Saint HighLoad++ 2019 and Joker 2019 conferences (Russia) Show less



Innovative company

• United Kingdom
• Retail Office Equipment

• Lead Software Engineer

  • Feb 2009 - Dec 2010

  The server part of a distributed system for collecting and analyzing publicly available information on the Internet. Java. The server part of a distributed system for collecting and analyzing publicly available information on the Internet. Java.



BestPersons.ru

• Founder, Lead Software Engineer

  • Dec 2007 - Jan 2009

  More than a social aggregator. Java. More than a social aggregator. Java.



CD.RU

• United Kingdom
• Wholesale

• Lead Software Engineer, Co-Founder

  • Jul 2005 - Mar 2008

  The communication service - a cross-platform social network City Chat / Spacedoors / CD.RU. The network's basis - chat rooms where you can communicate using any devices (mobile phone, website). Architecture and core of the system. Java. The communication service - a cross-platform social network City Chat / Spacedoors / CD.RU. The network's basis - chat rooms where you can communicate using any devices (mobile phone, website). Architecture and core of the system. Java.



Pushkino.info

• Lead Software Engineer, Co-Founder

  • Jun 2003 - Jul 2005

  - Development of Pushkino city site www.pushkino.org from scratch (PHP) - Development of online stores (PHP) - Development of Internet Club management software (Java) - Development of Pushkino city site www.pushkino.org from scratch (PHP) - Development of online stores (PHP) - Development of Internet Club management software (Java)



Freelance

• Egypt
• Human Resources
• 1 - 100 Employee

• Freelancer

  • Jan 2000 - Jun 2003

  Development and sale of own software and websites. Tech stack: VB, PHP, Java, HTML, JS. Development and sale of own software and websites. Tech stack: VB, PHP, Java, HTML, JS.