Артем

Artem Prushchik
Full-Stack Developer (React / React Native / NestJS / Blockchain)
Ukraine, Kyiv
Email: [відкрити контакти](див. вище в блоці «контактна інформація»)
Phone: [відкрити контакти](див. вище в блоці «контактна інформація»)

Professional Summary
Full-stack Web3 developer with 6+ years of commercial experience building
blockchain-based applications, multi-chain crypto wallets, Web3 integrations, and scalable
frontend/backend systems.

Experienced in developing production-grade mobile, desktop, and web applications using
React, React Native, NestJS, Node.js, and TypeScript. Strong background in blockchain
infrastructure, wallet architecture, EVM/Solana ecosystems, and cross-chain integrations.

Worked on high-load crypto wallet applications used by real users in production
environments, including mobile wallets, browser extensions, dApps, and blockchain tooling.

Comfortable working across the entire stack:

● frontend architecture
● backend architecture and scalable service development
● Docker infrastructure
● smart contract interaction
● LLM/AI integrations
● blockchain integrations

Technical Skills
Languages

● TypeScript
● JavaScript
● Node.js
● LiveScript
● Dart

● Solidity
● PHP

Frontend

● React
● React Native
● React Native Web
● Next.js (SSR/SSG)
● Vue.js
● Electron
● sass, scss, tailwind
● MobX, Redux, Zustand

Backend

● NestJS, Prisma, Swagger
● Node.js
● REST APIs
● WebSocket integrations
● Protocol Buffers (Protobuf)

Infrastructure & Tools

● Docker
● Docker Compose
● IPFS
● SQL / NoSQL databases
● Git
● Linux
● Any modern IDE
● CI/CD
● Expo
● AI agents

Databases:

● - PostgreSQL
● - MySQL
● - MongoDB
● - Redis
● - SQLite
● - SQL / NoSQL database design

AI / LLM

● llama.cpp
● GGML / GGUF
● Local LLM deployment
● AI API integration

Blockchain / Web3

● Ethereum / EVM
● Solana
● TON
● Bitcoin
● Wallet integrations
● Web3 infrastructure
● Smart contract debugging (Remix)
● Cross-chain bridges

Work Experience
BlockRock South LLC — Frontend / Full-Stack
Developer
Remote | Dec 2023 – Feb 2026

Worked on CRM platform development for desktop and web environments.

Responsibilities:

● Developed scalable frontend architecture using React and TypeScript
● Built reusable UI systems and shared application modules
● Integrated frontend with backend services using Protocol Buffers
● Worked with Protobuf schema serialization/deserialization
● Implemented complex data-heavy interfaces, filtering systems, and dynamic tables
● Optimized rendering performance for large datasets
● Participated in API contract design and backend integration processes
● Collaborated closely with backend and infrastructure teams

Stack:

React, TypeScript, Protobuf, Electron, Node.js, tailwind, scss, Socket IO

VELAS NETWORK AG — Full-Stack Web3 Developer
Sweden (Office / Remote) | Jun 2020 – Mar 2023

Worked on production cryptocurrency wallet ecosystem across mobile, desktop, web, and
browser-extension platforms.

Responsibilities:

● Developed and maintained multi-chain cryptocurrency wallets
● Supported React Native mobile wallets used in production
● Developed browser-based non-custodial wallets
● Improved wallet architecture and blockchain integration layers
● Worked on Web3 wrappers shared across web and mobile platforms
● Integrated EVM bridges (ETH, BSC, HECO, Velas)
● Worked with Solana, Bitcoin, Cardano, Velas, and Ethereum-based networks
● Developed new wallet platform using React-Native-Web
● Participated in blockchain infrastructure integrations
● Debugged and tested smart contracts using Remix
● Developed Telegram bots and backend services using Node.js

Stack:

React, React Native, React Native Web, Node.js, LiveScript, Web3, Solidity, Electron

Fazarosta Company — Frontend Developer
Ukraine | Jun 2018 – Oct 2019

Responsibilities:

● Developed landing pages using Vue.js
● Maintained WordPress-based projects
● Developed custom WordPress plugins
● Worked on responsive UI implementation

Stack:

Vue.js, WordPress, JavaScript, scss, PHP

Selected Production Projects
FrostFire Wallet (React Native)

Production mobile cryptocurrency wallet with multi-chain support.

Android:
https://play.google.com/store/apps/details?id=com.velas.frostfire

Velas Wallet

Production crypto wallet application.

Android:
https://play.google.com/store/apps/details?id=com.velas.mobile_wallet

Web:
https://wallet.velas.com

Velgazm Wallet

https://play.google.com/store/apps/details?id=com.velgazm_new

Velgazm Browser Extension

Web3-enabled Chrome extension.

https://chromewebstore.google.com/detail/velgazm/hcomoakalhieababmebdkgknckbeaflp?hl
=uk

Pentagos dApp

Blockchain-based application with smart contract integrations.

https://pentagos.app/home

Education
Master’s Degree in Engineering Technology
Open International University of Human Development, Ukraine
2012

Languages
● English — Upper-Intermediate
● German — A1