• Revamped legacy monolithic cyber sport platform to microservices, increasing system uptime by 30% and cutting downtime incidents by 50%, boosting user engagement during tournaments.• Cooperated with a team of 5 developers, using GitHub for pull request reviews and continuous integration.• Estimated costs of system resources to make ~150% savings of expenses for infrastructure.• Coached junior developers, focusing on domain-specific challenges, resulting in a 35% increase in code review speed.

• Integrated into the development team and began contributing to production code within the first two weeks of employment.• Collaborated on a critical tool for society, aiding researchers and healthcare professionals in managing, analyzing, exploring, interpreting, and reporting biomedical data, thereby supporting advancements in medical research and patient care.• Modernized outdated code with React.js, incorporating best practices that slashed technical debt by 35%, improved code maintainability, and cut bug resolution time.• Participated in group projects with cross-functional teams to redesign and implement a more efficient, user-friendly interface, resulting in a 25% increase in user satisfaction scores.• Coded a complex Table component built with Ant Design supported rich user experience scenarios: filters, sorting, group by, export, sub-table, sub-table+group by, data comparison (diff).• Upgraded charting widgets based on Plotly.js, resulting in a more user-friendly interface and improved user experience.

Project bsktrade.by• Engineered a reverse auction platform enabling companies to purchase auto parts at the most competitive prices in the market, leading to increased cost savings and procurement efficiency.• Introduced a market-competition-based purchasing strategy, resulting in cost savings of up to $1,500 per transaction.• Automated email notifications for both buyers and sellers, resulting in a 15% increase in user engagement.• Enhanced UI interactivity by integrating WebSockets, enabling real-time user interactions.• Designed transparent Excel reports to safeguard companies against unfair transactions and employee corruption.Project b2c.by• Developed a personal dashboard, enabling beauty professionals work scheduling and client data management.• Optimized webpack configuration, configured code splitting, resulting in 35% application bundle size reduction. • Converted a regular SPA into PWA, resulting in better user experience.Project 100r.by price list parser• Implemented E-commerce OpenCart website catalog filling algorithm, enabling to process supplier's price lists on a larger scale. • Optimized algorithm by Sphinx Search Engine integration, resulting in performance boost from 1.5 hours to about 10 minutes.

Donations תרומותDonation accept system for Jewish religious organizationsFront part was built as a hybrid app using AngularJS and Angular 7Backend was written using Express with Sequelize as an ORM

AngularJS, Node.js, Express, Sequelizemenivim.net - e-commerce app that sells commercial properties