Kristina Eldzarova

• Defining front-end architecture and technical decisions on stack, tools and refactoring. • Developing product features using React & RTK Query /Feature-Sliced Design approach/. • Creating and maintaining unit tests and Storybook docs to support scalable UI development. Achievements • Integrated testing and development tools into the frontend workflow. • Led the development of a custom UI library with 40+ reusable components. • Authored and maintained clear, up-to-date project core documentation.

Project – Mass Media Monitoring Web App • Developed and maintained the front-end architecture of the platform /React — feature implementation & UI enhancements/. • Wrote unit tests; improved component libraries (code reliability & reusability). • Performed code reviews. Achievements • Built a real-time monitoring web app /TypeScript, React & RTK Query/, ingested 100M+ articles daily from 92k+ sources. • Merged two repos to a monorepo; published 3 libraries (UI, utilities, charts) for frontend reuse.

Project – Social Media Monitoring Web App • Developed mobile-first responsive layouts → seamless UX across devices. • Built and maintained front-end features /a 12-engineer team/. • Unit testing, refactoring & bug fixes → long-term code quality. • Participated in Kanban workflows (QA & daily standups). Achievements • Responsive mobile version → 20% up in daily mobile usage /existing users/. • Unified error handling & client notification system, improving user feedback & reducing support requests.

• Led cross-functional collaboration with IT teams to develop website, landing pages, and mobile app for a Football For Friendship project (in collaboration with UEFA). • Managed technical documentation, sprint planning, QA testing, and end-user validation cycles in an Agile (Kanban) setup.