11/18/2025 updated
100 % available
Full Stack Dev | Mobile App Dev | Web3 AI/ML Engineer | Workflow Automation
Khmelnytsky, Ukraine
Worldwide
Bachelor of Engineering in Computer Software EngineeringAbout me
I am a results-driven software engineer with over 7 years of experience spanning blockchain, web, and mobile application development. My expertise lies in designing and deploying secure, scalable smart contracts on Ethereum and Solana, using Solidity, Rust to ensure long-term adaptability.
FlutterJavaScriptUser Experience (UX)Application Programming Interfaces (APIs)Artificial IntelligenceSoftware ApplicationsPenetration TestingCustomer Relationship ManagementC Sharp (Programming Language)C++ (Programming Language)Mobile Application DevelopmentPayment SystemsEthical HackingMobile Application SoftwarePython (Programming Language)
Smart Contract Development
Expertise in designing and deploying secure, scalable smart contracts on Ethereum, Binance Smart Chain, and Solana using Solidity, Rust, and modern upgradeable proxy patterns
Full Stack Web Development
Comprehensive capabilities in building production-ready platforms with React, Next.js, Node.js, and TailwindCSS, integrating APIs, payment systems, and real-time data features
Cross-Platform Mobile Development
Proficiency in developing mobile applications using Flutter and React Native, with experience in desktop solutions using C++, C#, and Qt frameworks
Web3 Integration
Advanced knowledge in blockchain integrations and Web3 wallet connections including MetaMask and WalletConnect
DApp Development
Experience in building decentralized applications with focus on user experience and blockchain functionality
EVM/BSC Development
Specialized skills in Ethereum Virtual Machine and Binance Smart Chain development environments
Qt Framework Development
Desktop application development using Qt frameworks for cross-platform solutions
Programming Languages Mastery
Proficiency in JavaScript, Python, Solidity, C++, React Native, Rust, Dart, SQL, and Golang
Security and Penetration Testing
White hat hacking experience with vulnerability research on decentralized protocols and Web3 platforms
API Integration and Development
Expertise in REST and GraphQL APIs for payment gateways, CRM systems, and third-party analytics
Expertise in designing and deploying secure, scalable smart contracts on Ethereum, Binance Smart Chain, and Solana using Solidity, Rust, and modern upgradeable proxy patterns
Full Stack Web Development
Comprehensive capabilities in building production-ready platforms with React, Next.js, Node.js, and TailwindCSS, integrating APIs, payment systems, and real-time data features
Cross-Platform Mobile Development
Proficiency in developing mobile applications using Flutter and React Native, with experience in desktop solutions using C++, C#, and Qt frameworks
Web3 Integration
Advanced knowledge in blockchain integrations and Web3 wallet connections including MetaMask and WalletConnect
DApp Development
Experience in building decentralized applications with focus on user experience and blockchain functionality
EVM/BSC Development
Specialized skills in Ethereum Virtual Machine and Binance Smart Chain development environments
Qt Framework Development
Desktop application development using Qt frameworks for cross-platform solutions
Programming Languages Mastery
Proficiency in JavaScript, Python, Solidity, C++, React Native, Rust, Dart, SQL, and Golang
Security and Penetration Testing
White hat hacking experience with vulnerability research on decentralized protocols and Web3 platforms
API Integration and Development
Expertise in REST and GraphQL APIs for payment gateways, CRM systems, and third-party analytics
Experience
Professional experience0 - 5 years
Freelancer since2017
Languages
EnglishFluentRussianBasic knowledgeUkrainianBasic knowledge
Project history
Lead full-lifecycle development of cross-platform mobile applications using React Native, architected secure integrations with REST and GraphQL APIs, developed push notification workflows and geolocation services achieving 25% uplift in rental conversion
Designed and implemented scalable web applications using React, Next.js, Node.js, and TailwindCSS, engineered API integrations and developed SEO-optimized landing pages improving organic traffic by 40%
Designed and maintained Solidity smart-contracts for on-chain options marketplace built on Avalanche C-Chain, implemented smart-contract modules for option issuance and liquidity provider staking, engineered upgradeable proxy contract patterns