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CV Serhii Kara

Personal Details

Email [open contact info](look above in the "contact info" section)
Phone [open contact info](look above in the "contact info" section)

Location Kharkiv, Ukraine

GitHub github.com/Kasevl

Telegram @No_G_od

Summary

Frontend Developer with 4+ years of commercial experience in React, TypeScript, Next.js, and React Native. Experienced in
owning frontend architecture, making technical decisions, and delivering features end-to-end as the primary frontend developer in
cross-functional teams.

Experience

Talzi — Frontend Developer | 3 years

Primary frontend developer of a multi-platform EdTech and coaching product, responsible for frontend architecture, implementation,
and maintenance.

• Education: Courses, webinars, lessons, assignments, certificates, and learning progress.
• Educational Hubs: Programs, student groups, teaching teams, and analytics.
• Corporate Learning: Content purchasing, employee access, and training workflows.
• Coaching: Specialist discovery, bookings, video sessions (WebRTC), and messaging.
• Payments: Stripe integration, transactions, subscriptions, balances, and promo codes.
• Other Features: Social feeds, notes, to-do lists, localization, and role-based interfaces.
• Engineering: Reusable components, Redux state management, REST APIs, and WebSockets.
Freelance & Product Development — Frontend Developer

• Fitness Apps: React Native workout tracking and ML-powered kettlebell repetition detection.
• Crypto Project: Token staking and referral web application (tokens-credit.com).
• NFT Marketplace: Interface for publishing and purchasing digital assets (tokendeal.io).

Skills

Languages: JavaScript, TypeScript, HTML, CSS

Technologies: React, Next.js, React Native, Redux Toolkit, WebRTC, WebSockets, REST API, Tailwind, Material UI, @rneui/themed

Tools: Git, GitHub, VS Code, Figma, npm, Bash, Linux Terminal

AI-Assisted Development: Codex, GitHub Copilot, Claude, AI coding agents, agent skills, MCP