Демид

About

Senior Frontend Engineer with 10+ years of experience building
high-performance web and mobile applications in fintech,
crypto, and SaaS. Expert in React, TypeScript, and scalable
f rontend architecture, with strong full-stack capabilities (Node.js,
Laravel, WordPress). Proven impact on performance, UX, and
delivery speed.

Demyd Hanenko AI

Tools: Cursor, Claude, Codex

MCP-based workflows and integrations

Senior Frontend Engineer
Prompt design for code generation, debugging, and

(React / TypeScript)
refactoring

Improved development speed and delivery consistency
through AI workflows

[відкрити контакти](див. вище в блоці «контактна інформація»)
Experience


https://www.hanenko.com/

2023–2026 | Crypto Trading Terminal (NDA)

Senior Full-stack / Frontend Engineer

Spain | Ukraine | EMEA
Led f rontend development (team of 3) and defined
architecture

Experienced in hybrid and remote work Built real-time trading platform (40k MAU) with WebSockets

environments across Europe, Middle East Developed web app, Chrome extension, and React Native app

Implemented TradingView charts and Web3 custody features

and Africa

Increased development speed by 84% using AI-assisted
workflows

Technical Skills

Designed reusable AI prompt workflows for development and
debugging

Core Mentored developers and conducted PR reviews

React TypeScript Next.js
2022–2023 BetSoftware

Senior React Developer

Worked on high-load gambling platform (300k–500k MAU)

MobX Redux Improved performance and responsiveness

Implemented full UI redesign and UX improvements

Frontend Refactored legacy codebase

2021–2022 CloudDevs

Tailwind CSS shadcn/ui Senior React Developer

Built DeFi applications and staking platforms

TanStack Query GraphQL Integrated smart contracts and Web3 features

Framer Motion 2020–2021 geoCapture

Middle Full-stack Developer

Developed logistics CRM and mobile app

Backend Built React Native BLE tracking system

Implemented real-time sync with backend

Node.js Laravel WordPress
2018–2020 Lifeisgoodlabs

PostgreSQL REST API Middle Full-stack Developer

Developed Laravel and WordPress applications

Built mobile apps with Ionic

Education
Participated in hiring and mentoring

Master's – Artificial Intelligence
2017–2018 Upwork

Full-stack Freelancer

Kharkiv National University of
Delivered web applications using WordPress and Laravel

Radioelectronics
Built mobile apps using Ionic (Angular)

Bachelor's – Computer Science
Worked directly with clients on requirements and delivery

Kharkiv National University of 2016–2017 SITIO

Junior Full-stack Developer

Radioelectronics
Developed WordPress websites

Maintained Yii and Backbone.js projects