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Rinalds U. Status: Offline
Tallinn, Estonia
100% Job Success

Full-Stack Technical Lead | AI | Mobile | Blockchain

I’m a seasoned full-stack developer with 20+ years of experience, excelling at blockchain (custom AMMs, zero-knowledge, L2 solutions) and AI/LLM integrations (OpenAI, Hugging Face, AI-driven development). I specialize in bridging the gap between technical and non-technical teams, ensuring efficient project delivery from concept to launch. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ RECENT HIGHLIGHTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ • Blockchain-Powered Gaming Platform Architected and led a multi-game blockchain platform with on-chain logic and NFT-based assets. • Top-Rated Financial Mobile Apps Led full-stack development for iOS/Android trading apps featuring real-time market data and millions of installs. • Learning Management System (LMS) Implemented a low-code UI builder for creating interactive training modules via a user-friendly GUI. • High-Traffic Student Portal Built and maintained one of the leading student portals with hundreds of thousands of active registered users. • LLM & AI Integration Deployed OpenAI and Hugging Face models (Mistral, Qwen, etc.) for automated content generation and leveraged AI-driven development with tools like Windsurf, Cursor, Claude/Sonnet, and Deepseek. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CORE SKILLS & EXPERTISE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▶ BLOCKCHAIN DEVELOPMENT • Smart Contracts & Protocols - Solidity (EVM: Ethereum, Arbitrum, Binance, Polygon) - Rust (Solana/Anchor) - PoW/PoS consensus, L1/L2/L3 solutions (Arbitrum Orbit, Stacks Bitcoin L2) • Advanced EIPs & Architecture - EIP-7702, EIP-4337, ERC-6900, ERC-7579, Account Abstraction - Custom AMMs (Uniswap forks), fixed-rate swaps, oracles, zero-knowledge proofs • DeFi & Security - MEV (Maximal Extractable Value), flash loans, arbitrage bots, subgraphs - Node maintenance, debugging with Tenderly, devops audits, advanced cryptography ▶ NFT & TOKENIZATION • Standard Token & NFT Solutions - ERC-20, ERC-721, ERC-1155 (EVM) - SPL tokens (Solana) - LSTs (e.g., Lido, Rocket Pool) • Use Cases & Integrations - Minting, bridging, marketplace design, provably fair mechanisms - Gasless transactions (Biconomy, Gelato), smart account wallets (web3auth, privy.io) ▶ AI & LLM • OpenAI, Hugging Face, Self-Hosted Models - GPT-based text generation, prompt engineering, advanced analytics (Mistral, Gemma, Qwen) - Tools: openwebui, sillytavern, librechat for open-source AI • AI-Driven Development - Skilled with Windsurf, Cursor, Claude/Sonnet, Deepseek for code generation/refactoring - ChatGPT for translation, automated QA, and AI-driven sprint planning ▶ BACKEND & DEVOPS • Backend - Node.js, PHP (Phalcon, Laravel, Symfony), Python (Django) - Databases: MySQL, PostgreSQL, MongoDB, Redis - Message queues (RabbitMQ, ZeroMQ, Bull), TDD (Mocha, PHPUnit) • DevOps - AWS, Google Cloud, Docker, Kubernetes, server optimization, cloud exit - CI/CD pipelines (GitHub, GitLab, Bitbucket) - Linux administration (Ubuntu, CentOS, RedHat, FreeBSD) ▶ FRONTEND & CROSS-PLATFORM • Web & Mobile - React, Vue, Angular, Ionic/Cordova, React Native - TypeScript, Tailwind, Bootstrap, CSS preprocessors • UI/UX & Design - Figma, Photoshop, GIMP for rapid prototyping ▶ TEAM LEADERSHIP & PROJECT MANAGEMENT • Leadership & Collaboration - Task planning, PR reviews, mentoring, developer vetting/onboarding - JIRA, Trello, Slack, Git-based workflows ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SPECIALTIES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ • Blockchain & Cryptocurrency DeFi, L1/L2/L3, zero-knowledge, custom AMMs, NFTs, oracles • LLM & AI Solutions OpenAI, Hugging Face, AI-driven development (Windsurf, Cursor, Claude/Sonnet, Deepseek) • E-Commerce & Fintech Payment gateways, shipping APIs, advanced AML/KYC flows • Low-Code Systems Rapid GUIs, interactive module creation, LMS solutions • Localization & Intl. Multilingual, including RTL layouts ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ READY TO COLLABORATE? ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Let’s discuss how my cutting-edge blockchain expertise and AI-driven development skills can bring your vision to life. With a track record of delivering complex projects on time and on budget, I’m eager to help you innovate and succeed.
Work history
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Skills

Skills

  • Angular
  • MySQL
  • Web Development
  • JavaScript
  • Full-Stack Development
  • Software Architecture & Design
  • Solidity
  • Ecommerce Website Development
  • Solana
  • Mobile App Development
  • Team Management
  • Forex Trading
  • Blockchain Architecture
  • Blockchain
  • FinTech

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