maksym94

Senior Fullstack Dev

I'm a full-stack developer with 8+ years of commercial experience, focused on React/Next.js and Node.js, with deep production experience building real-time, data-intensive systems.

Right now I'm building a real-time on-chain activity monitoring platform for Hyperliquid — a Telegram bot, backend API, and React web app in a single TypeScript monorepo. I designed the WebSocket data layer myself for live wallet and trade tracking, and built a multi-worker architecture with Redis pub/sub to work around a hard rate limit on the blockchain API (10 wallets per IP), scaling wallet tracking horizontally. I also built a dual-identity auth system so the app works both as a standalone site and as a Telegram Mini App from one codebase.

Beyond crypto, I've shipped enterprise-scale React/TypeScript work at Astreya (Google offices platform, 30+ engineer team) and full-stack products end to end — Node.js/NestJS, PostgreSQL, GraphQL, WebSockets.

I'm looking for crypto/web3-focused frontend or full-stack roles — real-time trading interfaces, on-chain data platforms, DeFi tooling — remote, where I can own architecture decisions rather than just implement tickets.

Experience: 8 years

Yearly salary: $40,000

Hourly rate: $20

Nationality: 🇺🇦 Ukraine

Residency: 🇪🇸 Spain

Experience

fullstack dev

Infinity technologies

2018 - 2026

Senior Fullstack Developer with 8+ years building production web applications across diverse domains — geospatial platforms, enterprise tooling, fintech, and media. Key projects: - Ixmap (2023–2026) — Led frontend architecture for a geospatial application handling complex map geometries and large spatial datasets. Stack: Vue 3, Quasar, MapLibre, GraphQL, Turf.js. - Astreya (2025–present) — Google offices support platform used across India and USA. Collaborated with a distributed team of 30+ engineers, maintaining high code-quality standards per Google requirements. Stack: React, REST API. - Sinevo (2022–2023) — Built SSR-first Next.js application with caching strategies and API optimisations, focused on SEO and fast content delivery. - Nova Post (2019–2021) — Delivery services web app with WebView build for mobile platforms. Stack: Vue, Vuex, REST API. - WIMEX (2026–present) — Web application for a German corporation. Performance optimisation and new features with AI agents integrated into development workflow. Stack: Vue 3, Nuxt, WebSockets, Pinia. Full-stack exposure: Node.js, PostgreSQL, NestJS, Express.js. Consistent focus on performance optimisation, scalable architecture, and modern rendering patterns (SSR, SSG, ISR).

Skills

aws

backend

crypto

front-end

javascript

node

nosql

postgres

react

sql

typescript

vue

english

russian

ukrainian

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