Дмитро

Dmytro Shcherbyna - Frontend Developer
Ukraine, Kyiv. [відкрити контакти](див. вище в блоці «контактна інформація»). [відкрити контакти](див. вище в блоці «контактна інформація»), https://t.me/shcherbyna_d, [відкрити контакти](див. вище в блоці «контактна інформація») https://github.com/shcherbyna-d, portfolio https://dmytro-shcherbyna-react.vercel.app/

SUMMARY
• Frontend Developer with 5+ years of experience, including freelance. Worked on web apps, admin panels, and SEO-driven products - often joining projects at the idea stage and building from scratch.
• Stack: React, Next.js, TypeScript. Have dealt with performance optimization, analytics (Amplitude, GTM, Meta Pixel), and A/B testing.
• Comfortable making technical decisions and working closely with product and design. Prioritize clean, maintainable code and deliver pixel‑perfect user interfaces. Use AI tools in daily workflow.
• Remote. English B2.

SKILLS
React, Preact, Next.js, TypeScript, JavaScript (ES6+), HTML/CSS, styled-components, CSS Modules, Tailwind CSS, Material UI, responsive design, cross-browser compatibility, TanStack, Zustand, Redux, SWR, REST API, WebSocket, SSE, Jest/Vitest + RTL, Strapi, Figma, Git, GitHub, Jira.

EXPERIENCE
Genesis Tech. Ohayu project. Frontend Developer. Jun 2024 - Mar 2026. E-commerce. Technical stack: Preact, React, TypeScript, styled-components, CSS Modules, Material UI, Strapi, Vitest + RTL.

• Improved page speed across two iterations: Lighthouse +31/+12 pts, bundle -22% via lazy-loading, responsive images, and Vite config optimization.
• Built a design system from scratch: component library of 15+ components based on styled-components, shared across the main product and marketing funnel.
• Developed the admin panel from scratch: architecture, routing, authorization, MUI-based styling, API endpoints, and hooks.
• Eliminated content-change tasks by integrating Strapi CMS for 5+ pages with a rich text editor.
• Designed a scalable funnel and A/B testing architecture covering 10+ step variants.
• Integrated Solidgate payment system with a customized checkout form.
• Handled analytics and SEO setup: migrated 4 scripts to GTM, integrated Amplitude with cookie consent, implemented semantic HTML, and Organization schema markup.
• Pushed code quality standards: introduced unit testing (Vitest + RTL), enforced ESLint rules for hooks, and established mobile-first CSS as a team standard.
• Reviewed PRs, estimated tasks, and made technical decisions on architecture and new features.

INVTD. Frontend Developer. Sep 2023 - Jan 2024 (contract, project closed). FinTech. Technical stack: Next.js, React, TypeScript, SWR, styled-components, Stomp Client (WebSocket), Material UI, Cypress, Jest + RTL, Storybook.

• Replaced Redux with SWR for data fetching, simplifying state management and optimizing network requests.
• Implemented real-time chat (WebSocket + Stomp) and markdown editor.
• Added icon gallery to Storybook as an auto-updated mechanism for 80+ icons - removed the need to track them manually.
• Prepared codebase for handoff: added documentation comments and removed legacy code.
• Solely maintained the frontend codebase during team transition for 1+ months.

WTT-Solutions. Frontend Developer. Jun 2021 - Aug 2023. Outsource.
Projects:

Klearing project. Feb 2022 - Aug 2023. FinTech. Technical stack: Next.js, React, TypeScript, SWR, Redux, Zustand, styled-components, Material UI, i18n, Server-sent events, Cypress, Jest + RTL, Storybook.

• Added i18n support for 3 languages.
• Migrated Material UI v4 to v5, resolving breaking changes in deep imports across the codebase.
• Migrated JWT auth to httpOnly cookies as a preventive security measure.
• Built a real-time notification module using Server-sent events.
• Integrated Onfido verification for the critical signup flow.

LUK project. Jun 2021 - Jan 2022. EdTech. Technical stack: Next.js, React, TypeScript, Redux, SASS, Twilio, i18n, Axios.
Built text and video chat with Twilio; implemented internationalization.

Previous experience. MS Dynamics CRM Developer & Business Analyst (Dec 2014 - Dec 2020) - included frontend tasks, which led to a full transition into frontend development.

EDUCATION
National University of Food Technologies, Kyiv. Bachelor's degree.