Designing fully customized websites, utilizing CMS platforms like WordPress and open-source solutions such as vas3k.club. My contributions include:• Achieved a 4x reduction in memory usage for the wordpress plugin files of Leyka (https://github.com/Teplitsa/Leyka), enhancing performance.• Developed the conceptual design and implemented interactive and animated elements as part of the design studio Poool. https://peoplescreens.com• Provided full support for the development and maintenance of the forum platform, which includes contributions to the open-source project vas3k.club. https://forum.beinopen.ru• Developed an interactive map based on Leaflet, enhancing user engagement and experience. solgar.ua/map

Development website and software for NGOs and independent startups using a horizontal management approach. My key projects included:• Provided technical leadership for the development of a citizen watch platform. Optimized the development process, set up workflows, and standardized development practices within the team. https://citwatch.org• Designed the architecture of a crawler for news classification using neural networks for self-hosted deployment. The solution, Neuro-parser, enables simultaneous real-time processing of news from over 500 news sources. https://github.com/antijob/neuro-parser • Developed an interactive map for heritage conservation. https://nasledie-iris.org/ • Conducted internal training and lectures on technologies: GIT, BEM-methodology, Docker

Middle Software Engineer at Yandex• Configured the deployment system for a search service spanning 100 machines across 3 different clusters, ensuring seamless deployment.• Rewrote the ranking order graph for better performance, utilizing algorithms such as topological sorting and parallel programming techniques.• Integrated user click data to enhance search functionalities for Yandex Market.Achievements:• Improved the stability and performance of the search service.• Enhanced search result ranking in Yandex Market through the integration of user click data.

Junior Software Engineer at Yandex• Designed and developed a priority processing line for data, ensuring news articles are processed within 30 minutes.• Optimized the sitemap crawling system, doubling the URL processing speed.• Developed and implemented crawling processes for images, enabling real-time data processing instead of daily downloads.• Created data pipelines for internal services, ensuring efficient data flow and integration.• Built an internal monitoring system. This system successfully identified bottlenecks, leading to significant performance improvements.Achievements:• Real-time image crawling• Priority news processing within 30 minutes• Enhanced memory usage through internal monitoring• Doubled URL processing speed in the sitemap crawling system