Worked in a team developing an internal portal for the network statistics and quality department.Tech stack: React, TypeScript, Redux-toolkit, Jest, React Testing Library, Git● Developed modules for collecting, displaying, and analyzing network access statistics for MTS. Data visualization was presented in graphical and tabular formats, increasing accessibility for network engineers. According to analysts, this led to a 20% increase in network quality data processing efficiency (identifying problems and processing them by creating tickets for localization and solution).● Wrote unit tests using Jest for new development and enhancements of existing functionality. Achieved 30% test coverage, providing confidence in the operation of functions and hooks within product components.● Implemented FSD architecture: consolidated all common modules, separated all business logic and components by features and widgets. This accelerated onboarding of new developers to the project and allowed for more independent development of new features, with fewer dependencies between them.● Introduced the practice of conducting technical demos within the development team, allowing for sharing expertise and project knowledge among developers, thereby reducing the bus factor.● Mentored two frontend interns, familiarizing them with internal company processes and project specifics.● Compiled all project and code information into a separate frontend onboarding, significantly speeding up the immersion of new colleagues and simplifying the search for existing information.

Monitoring the performance of the radio network of MTS PJSC, assistance in localizing and eliminating emergencies.

The company's main activity is custom project development. I worked on an online store project.Tech stack: React, TypeScript, Redux-toolkit, NextJS, Jest, React Testing Library, Storybook, MaterialUI, Playwright, Git● Refactored the existing registration and authorization form, eliminating the need for third-party validation library (Yup), transitioning from MaterialUI to an internal UI kit, and moving the authorization and registration forms to a shared module.● Proposed the idea of ​​conducting cross-browser and cross-platform testing using real devices and emulators through BrowserStack to improve application quality and UX.● Integrated the Playwright library into the project for UI testing and, together with QA engineers, covered the main user scenarios and important application components, increasing fault tolerance and release reliability.● Optimized the checkout page for SSR: rewrote data fetching from React to NextJS, optimized image display, improved web-vitals metrics (TTFB, TTI, CLS). Also added offline order viewing capability by implementing caching mechanism and PWA.● Integrated StoryBook into the project and, during the redesign process, helped the design team and frontend department seamlessly transition to a new system of CSS tokens and implement them in company projects.● Migrated from classical redux to redux-toolkit, as well as moved some logic into components using react-query to reduce the amount of data stored in the global store.

Development of landing pages based on Figma layouts.Communication with the design team.

Monitoring the performance of the transport network of the Caucasian branch of PJSC Megafon, assistance in localizing and eliminating emergencies.