Stepan Khvatov

Middle Frontend Developer · React · Next.js (App Router)

Building product SPAs, SSR sites and fintech interfaces.

Replies are generated by AI (DeepSeek) in my voice — not from me personally.

Projects

  • SquareFi

    Middle Frontend DeveloperNovember 2025 — February 2026

    Virtual card wallet for crypto: top up with stablecoins and pay online. Web app and Telegram Mini App on Next.js 15.

    Stack

    • Next.js 15
    • TypeScript
    • Zustand
    • Telegram Mini App
    • Vitest
    3D render of USDC, USDT, and DAI stablecoin tokens

  • Immigrant Invest

    Middle Frontend DeveloperApril 2023 — June 2025

    Residency and citizenship by investment: three products, multiple brands and regional sites, multilingual content and SEO platforms.

    Stack

    • Next.js
    • TypeScript
    • Tailwind CSS
    • i18n
    • SSG
    • ISR
    Immigrant Invest logo

  • DexPilot & 0xProcessing

    Frontend DeveloperMarch 2021 — April 2023

    Crypto platform Zenfuse → DexPilot: order terminal with live exchange data. Separate frontend for the 0xProcessing payment gateway.

    Stack

    • React
    • TypeScript
    • Redux Toolkit
    • WebSocket
    • Solana
    • Strapi
    0xProcessing product preview

  • didigallery

    Frontend Developer, Flake DesignDecember 2020 — March 2021

    Online art gallery and storefront at didigallery.com: catalog, checkout, and payment provider integrations.

    Stack

    • React
    • JavaScript
    • Strapi
    • REST API
    • Payment APIs
    didigallery website preview