Особисті дані приховані

VSEVOLOD BUZYNNYK
FRONTEND ENGINEER | React · React Native · TypeScript · Next.js · Expo
Kyiv, Ukraine • [відкрити контакти](див. вище в блоці «контактна інформація») • [відкрити контакти](див. вище в блоці «контактна інформація») • t.me/frdshdrmr

PROFILE
Frontend Engineer with 3+ years of commercial experience, improving existing products and building new ones from
scratch. I understand the client's business goals, turn them into practical solutions, and take ownership from planning
through production launch. My focus is on shipping products that solve real problems and create value for both users and
the business.

TECHNICAL SKILLS
Core React · TypeScript · Next.js · JavaScript · React Native / Expo (familiar)
UI & state Zustand · TanStack Query · Redux Toolkit · React Hook Form · Zod · MUI · Leaflet
Platforms & APIs REST · WebSockets · Web3.js · SSR · i18n · RBAC · WebRTC
Engineering Git · Docker (dev) · CI/CD · Automated tests · CodeRabbit

LANGUAGES
Ukrainian — Fluent • English — B2

PROFESSIONAL EXPERIENCE

Senior Frontend Engineer | LIS Nov 2024 – Sep 2026
GovTech platform and companion telecom-coverage mapping app
• Developed a government telecom platform with registries, role-based access, reports and electronic document workflows.
• Built complex forms, data-heavy tables, Excel import/export, digital-signature flows and SSR pages.
• Developed a companion service-coverage map with operator zones and geographic layers using Leaflet.
• Built a security-team communication screen with camera, microphone and screen sharing powered by WebRTC.
• Implemented CI/CD checks with automated tests and CodeRabbit-assisted code review.
TECH STACK React, TypeScript, Next.js, Vite, MUI, TanStack Query, React Hook Form, Zod, Leaflet, WebRTC, REST APIs

Middle Frontend Engineer | MetaChain Jun 2023 – Sep 2024
Cryptocurrency exchange and internal administration platform
• Set up frontend architecture and began developing the exchange website and admin panel from scratch.
• Created real-time spot-trading screens: live quotes, price charts, order book, order placement and history via WebSockets.
• Built user flows for balances, deposits, withdrawals, KYC, account security and Web3 wallet connection.
• Developed an internal admin portal for users, transaction monitoring, wallets, configuration and staff permissions.
• Added multilingual localization for the exchange, including an Arabic-language version.
TECH STACK React, Next.js, TypeScript, Zustand, WebSockets, Web3.js, TradingView, React Hook Form, i18n, Zod

VSEVOLOD BUZYNNYK · CV 2026