andreysprinter

Lead Developer with experience CTO, over 17 years in software development, specializing in mobile, backend, web development and blockchain. Proven expertise in managing full-cycle development from ideation to deployment and resolving complex technical challenges across diverse tech stacks. Strong background in mobile and blockchain ecosystems (EVM), with a track record of delivering high-stakes projects for industry-leading companies.

In those earlier mobile development roles, I worked on Android and Wear apps under NDA for major companies like Yandex, ABBYY, Rutube, and Amediateka (outstaff/outsource under Globus LLC/OKPixels).

Core Competencies

• Blockchain: Ethereum, Bitcoin, Solana (Web3J/Web3JS/Ethers/bitcoinjs-lib/Hardhat/openzeppelin etc./Solidity/Anchor (Rust)/’@solana/web3.js’/reown (wallect-connect))
• Mobile Development: Native Android (Java/Kotlin), Android Wear, 
• Web frontend: React (TypeScript)
• Web backend: NestJs (TypeScript)
• Backend Architecture: Monolith, Microservices
• Database: PostgreSQL, Redis, Elasticsearch
• Microcontrollers: Arduino, Esp32
• Telegram infrastructure: Bot, Client (Gramjs), Mini-app

Independently developed a full-featured trading platform integrated with decentralized exchanges (DEX) on the Ethereum Virtual Machine (EVM) blockchain. The project was implemented through a complete development cycle — from architecture design to deployment.

Technology Stack:

• Programming Languages: TypeScript, Kotlin, Solidity, SQL
• Backend: NestJS (creation of a scalable API to support trading platform functionality)
• Frontend: React
• Mobile: Native Android application (WIP)
• Blockchain: Integration with EVM-based blockchains, development and implementation of smart contracts

Key Achievements:

• End-to-end implementation of the full technology stack
• Integration with decentralized exchanges for trading operations
• Ensuring secure blockchain transaction handling