Frontend Software Engineer with UI/UX design skills 30 yo, currently living in 🇩🇪 Berlin
Software engineer with over 8 years of experience in the tech industry, specializing in front-end development and UI/UX design. Experienced in designing and building clean, user-friendly interfaces and delivering polished, maintainable code. Comfortable working across a broad range of technologies and quick to learn and adapt to new tools and frameworks.
design portfolio (notion)
Senior Software Engineer (full-time, on-site)
— Leading the front-end migration of a legacy jQuery application to React by designing a hybrid architecture for gradual rollout, heading front-end development with 3 additional front-end contractors, supporting planning and prioritization, and collaborating with backend and design teams on shared authentication, routing, navigation, and cross-application consistency
— Maintained and extended a large legacy frontend by delivering new features, fixing bugs, and implementing security improvements such as XSS mitigations, HTML sanitization, security headers, and CSP, while also improving responsiveness, RTL support, and overall UI quality
— Designed layouts and implemented multiple product areas, including the login page, desktop application download page, and admin configuration pages
— Introduced unit testing with Vitest for the new React codebase, added initial test coverage and mocks, integrated it into the development workflow, and helped the team adopt the new testing approach
— Developed a new Playwright-based end-to-end testing setup from scratch, integrated it into development workflows, and later handed it over to the QA automation team for further support. Supported the QA automation team by maintaining legacy end-to-end tests written in Java with TestNG
— Improved front-end maintainability and developer experience by optimizing rendering for large datasets, refining build configuration, improving asset handling, and introducing tooling and documentation improvements
— Built internal tooling to support release and compliance workflows, including an automated license page generator
— Maintained outdated front-end dependencies and jQuery plugins by applying internal patches and resolving bugs and security issues in legacy code
— Supported front-end hiring through technical interviews and candidate assessment
Technologies: JavaScript, TypeScript, React, ReduxToolkit, CSS, SASS, playwright, vite, vitest, webpack, jQuery, Bootstrap, Figma, Java, TestNG, git.
Founding Full-Stack Engineer (freelance)
— Led the development of the application from the ground up and set up the full technical stack and infrastructure, including Firebase, Heroku, Vercel, Cloudflare, Sentry, and Telegram platform integrations
— Designed the project architecture and delivered the initial product releases, covering the backend, database, frontend, and infrastructure
— Built and launched the project from scratch, reaching 20K+ MAU at launch, and implemented core features including Telegram authentication, daily reward mechanics, user balance, a referral system, localization, a leaderboard, and server-validated quests
— Adapted the web app for mobile devices and ensured stable performance during launch traffic spikes
— Prepared and optimized design assets for production, including asset slicing, compression, custom font integration, and layout adjustments
— Built internal Telegram tools for infrastructure monitoring and operational support, and integrated analytics and monitoring tools to track product usage and system health
— Set up documentation, environments, and tooling to support future development and releases
Technologies: TypeScript, React, zustand, nodejs, fastify, CSS/SASS, grammY framework.
Infrastructure: Google Firebase, heroku, vercel, cloudflare, sentry, Telegram API, Google Analytics.
Senior Frontend Developer & UI/UX Designer (full-time)
— Maintained the front-end for tango.tech by adding light and dark theme support, improving responsive layout behavior, and fixing minor bugs
— Designed and developed the front-end for game.tango, a cookie-clicker-style game created for the Mobius conference: prepared the design in Figma, created most of the pixel art assets, and implemented the layout and JavaScript logic
Technologies: pure JavaScript, CSS, React, NextJS, Figma, Adobe Photoshop, Adobe Illustrator, git.
Senior Full-stack Developer & UI/UX Designer (full-time)
— Owned the full cycle of design and front-end development for an internal bug tracker used by the VK Testers community, from discussing requirements with managers to designing interfaces and implementing new sections such as profiles, achievements, and guilds
— Developed internal tools for querying user data and generating reports based on specific parameters, covering both front-end and back-end implementation
— Developed a chatbot to support group call testing by tracking participation, collecting activity data, and providing internal statistics for coordinators
— Led visual design for major VK Testers events, including VK Testrun and Testers Awards, and created posters, banners, merchandise, print materials, and stream visuals
— Designed visual materials for community and internal needs, including social media posts, shop assets, conference materials, and presentation graphics
— Communicated with platform users and resolved UI issues based on their feedback
— Created an interactive Readymag microsite for a conference event to present the VK Testers program, company information, and contact details
— Conducted UX research using eye-tracking tools and built a custom React-based calibration tool to streamline the research process
Technologies: pure JavaScript (ES5/6), TypeScript, NodeJS, CSS (+ less, sass, bem), React, vk-ui, php/kphp, webpack, gulp, git.
Design tools: Figma, Adobe Photoshop, Adobe Illustrator.
Frontend Developer (full-time)
Ryanair
— Developed new features and fixed bugs for FleetTweet, an internal platform for pilot communication and route selection
— Introduced integration tests and increased test coverage across the codebase from 0% to ~60%
Technologies: Angular, rxjs, ngrx, bdd tests (karma, mocha, Cucumber.js), git.
Tinkoff
Fidelis Parabellum
Designer
Technologies: Figma, Adobe Photoshop.