Yuri Tkachenko

Experience

• 

  Novocherkassk Library System

  Jan 2005 - Jun 2008

  Web Developer / System Administrator

  Web site development and local network management services.

• 

  Encounter Ltd

  Jan 2008 - Jan 2010

  Domain Owner and Lead Event Оrganizer

  Creation and organization of urban, photo, video and other games.Encounter as the international network of active city games is an external environment. But it is more, than games. It is more, than not boring weekends. It is more, than community of people with the certain interests... It is the whole world!

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  ProgForce.com

  Jul 2008 - Jan 2016

  - North America projects management, R&D, and customer support. Development of ERP solutions for North American customers.- Developing and leading technology strategies for e-commerce projects for North American customers.- People and teams for software development, quality assurance, and customer support management. - Team leader and project architect on ERP project system (OpenERP-based solution, with a lot of custom development) - Web developer on PHP5, JS, HTML, and CSS projects- Held classes targeted at familiarizing the team with Drupal, CSS, SASS/LESS, JS development, git, CI Front-end developer with experience in PHP, JS, HTML, CSS.

  • SVP North America Accounts

    Jan 2014 - Jan 2016

  • Team Leader, Software Architect

    Jun 2010 - Jul 2014

  • Web Developer

    Jul 2008 - Jun 2010
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  Songsterr.com

  Jan 2017 - Jan 2024

  Full Stack Developer

  As a Lead Web Engineer at Songsterr, a premier guitar and bass tab archive with an interactive player, I spearheaded several critical improvements:• Architected and implemented a full-stack solution using React/Redux (frontend) and Node.js/Express (backend), significantly enhancing site performance and user experience.• Led the migration of the public API from a legacy Java-based service to a modern Node.js implementation, ensuring seamless support for iOS and Android mobile clients.• Orchestrated the refactoring of core tab and sound rendering algorithms, transforming monolithic processes into efficient microservices pipelines using AMQP for robust inter-service communication.• Revolutionized the billing system by integrating multiple payment gateways (PayPal, Apple Pay, Google Pay), resulting in a 30% increase in successful transactions.• Engineered critical internal tools including: - A sophisticated anti-fraud system, reducing fraudulent activities by 99.9% and bringing refund rates to near-zero levels - A custom subscription management service for App Store and Google Play, integrated with analytics services for centralized data collection, enabling comprehensive user workflow tracing and improved understanding of user behavior - An in-house user testing platform, streamlining user feedback collection and analysis, resulting in a 50% reduction in time-to-insight and enabling rapid, data-driven product iterations• Mentored junior developers and fostered a culture of code quality and best practices, leading to a 25% reduction in bug reports. Exibir menos

• 

  Lido Finance

  Jan 2024 - now

  Smart Contract Developer

  As a Protocol Smart Contract Developer at Lido Finance, the leading staking solution on Ethereum, I have been deeply involved in several projects that enhance our position in the ecosystem:• Cross-chain DAO motions forwarding: Adapted a robust system for transmitting governance decisions from Ethereum to Binance Smart Chain, enhancing Lido's multi-chain capabilities.• Core protocol repository enhancement: Streamlined development workflow by implementing automated CI/CD pipelines using GitHub Actions, integrating comprehensive unit and integration testing suites with Hardhat and Foundry, and incorporating code quality tools such as Solhint and Slither. These improvements significantly increased test coverage and enhanced overall code reliability and maintainability. Exibir menos