As a Senior Frontend Developer: ● I improved product stability, accelerated feature delivery, and reduced the risk of failed releases. ● Took ownership of a large, legacy Angular codebase and stabilized core functionality by developing 40+ critical CRM entities, enabling the product to scale to new enterprise clients. ● Designed and implemented a reusable UI kit. ● Implemented Playwright E2E, unit, and integration testing, reducing regression testing time by 50% and enforcing consistent code quality standards with ESLint. As a Team Lead: ● Expanded the frontend team by conducting 50+ interviews and building a strong team of 4 developers, covering key product needs. ● Designed and implemented an effective onboarding system, reducing new hire adaptation time from 8 to 5 weeks and accelerating time to productivity. ● Established a team-wide code review process, enabling every team member to deeply understand technical decisions across the project. ● Created and maintained a knowledge base of technical decisions and documentation. ● Mentored developers and helped solve complex technical and architectural challenges. As a Scrum Master: ● Organized the full Scrum cycle (sprints, backlog, task creation, daily meetings, progress tracking), improving development predictability and release planning quality.

Worked on two parallel projects: ● Enterprise CRM (Angular). ● Company Management Web Application (React / Next.js). ● Joined the project during a complete transition of the technical team and established structured frontend processes and architectural standards, stabilizing the product and restoring release predictability. ● Refactored a large legacy codebase with a phased migration to the latest framework versions, improved overall architecture, and reduced production incidents in critical payment flows by ~35%. ● Optimized performance of a React application (state management, rendering, API interactions), improving load times and key performance metrics based on recent measurements. ● Introduced Playwright-based E2E testing and configured CI/CD pipelines, increasing release stability and significantly reducing production risk.

● Developed 7 full-featured admin panels for analytics and business process management. ● Implemented unit testing, increasing application stability and reducing production issues. ● Built complex analytical visualizations for large datasets, optimizing rendering to maintain high performance under heavy loads. ● Integrated frontend applications with backend services using WebSocket, REST and GraphQL.

● Designed a monorepo architecture for two different admin systems (CRM system and seller personal account). ● Developed interfaces and modules using React. ● Optimized CRM data loading, reducing UI response time and improving user experience. ● Translated UX designs into responsive, interactive interfaces.

● Developed e-commerce applications using Angular, AngularJS and React. ● Added WebSocket support for real-time updates. ● Improved UX and fixed bugs.