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🌟 Your Trusted Partner for Web & Web3 Development 🌟 Hi, I’m Viktor, the founder of Vizzwo, a Ukraine-based company specializing in creating modern Web and Web3 solutions. We provide end-to-end product development, covering every stage: ✅ Design creation ✅ Development ✅ Deployment on AWS or/and launching on the blockchain mainnet 💻 Our Technology Stack: 🚀 Frontend Development: - Vanilla JavaScript - ReactJS - Next.js - TypeScript 🔧 Backend Development: - Golang - PostgreSQL / Redis / MongoDB - Solidity ☁️ Infrastructure & DevOps: - AWS - Docker, Kubernetes - Terraform ❓ Didn’t find the technology you’re looking for? No worries! Just send me a message—we likely have the expertise you need. ✨ Let’s bring your ideas to life. Whether it’s a modern website, a high-performance application, or an innovative Web3 solution, Vizzwo is here to help. 📩 Message me today, and let’s get started!

As an AI developer and Full Stack Developer team working in Node.js and React, we build production-ready SaaS platforms and AI-powered web applications for startups and growing businesses. Over 80+ products delivered across Healthcare, Education, Logistics, eCommerce, Marketplaces, and Enterprise systems — real AI development work, not landing pages. 💡 What we build as an AI developer Our AI developer work spans retrieval-augmented generation (RAG) systems that answer strictly from a client's own data, computer vision models trained on 1M+ images for real-world disease prediction, and document-understanding pipelines using deep learning and neural networks to extract and categorize data from PDFs into ERPs like QuickBooks, Xero, and NetSuite. We integrate OpenAI and Claude APIs for multi-agent orchestration platforms, natural language processing for content generation at scale, and Python-based machine learning models validated against supervised and unsupervised learning benchmarks. Data science and artificial neural network fundamentals underpin every AI developer engagement, whether the deliverable is a chatbot, a predictive model, or a full RAG pipeline. 🤖 Bridge — our proprietary AI developer platform Beyond client work, we built Bridge, an internal AI agent framework that speeds up every AI developer project: RAG pipelines, secure ingestion from PDFs/CRMs/APIs, MCP server creation for tool-calling agents, and multi-channel deployment across chat, web, and internal tools. 🔹 Full Stack Developer architecture As a Full Stack Developer and Node.js React team, we work with NestJS, Next.js (SSR/ISR/Edge), Ruby on Rails, Vue, Angular, and React Native, backed by AWS infrastructure, SQL databases, Git-based CI/CD, and our own production-proven BC Next.js + NestJS boilerplate. REST/GraphQL APIs, PHP legacy integrations, and CSS3-based frontend work round out our full stack developer skill set. 🧠 How we work Deep product discovery, architecture design and tech stack validation, sprint-based Agile development, transparent daily communication, automated testing and QA, production deployment and scaling support. 🎯 If you're building AI SaaS, a marketplace, a telehealth system, an ERP/CRM platform, or a custom AI assistant — as an AI developer and Full Stack Developer team we offer a free technical consultation and architecture review.

Hey, I'm Myroslav, a full-stack developer, AI agent architect and blockchain builder with 7+ years of experience building production systems end to end: backend architecture, API design, frontend, deployment. Node.js, NestJS, TypeScript, and React are the core of most of that work, and general web developer requests fall under that same umbrella. On the AI side, I work as an AI agent builder and AI backend developer in Python. I build tool-use pipelines, API integrations, workflow automation, and agents that read data (web scraping included) and take action instead of just returning a response. That includes things like a lead-qualifying sales agent or a backend process running unattended. On the blockchain side, I'm a Solidity smart contract developer and web3 developer. I handle dApps end to end: contract logic, tokenomics, wallet integration, indexing, and the react web3 frontend around it. NFT projects and full-stack blockchain builds both fall under this. I bring in Rust when a project needs extra performance, including Solana blockchain development. Where I add the most value: ✅ Full-stack builds with a backend that holds up under real load and stays easy to extend as the project grows, instead of getting harder to touch over time. ✅ AI agents with real consequences attached: reading data, deciding, acting, built with guardrails that matter once it's not just a demo anymore. ✅ Smart contracts and dApps where the contract itself is maybe 20% of the work. The wallet integration, indexing, and web3 frontend make up the rest. 50+ projects delivered across these areas, with the kind of client relationships that come from finishing on time and being straight about scope from the start. Stack: Node.js, NestJS, TypeScript, React, PostgreSQL for backend and full-stack work. Python for AI agent development and AI integration. Solidity for smart contracts, deployed and tested on Ethereum and EVM-compatible chains. Rust where raw performance matters, Solana included. Security and edge-case handling are part of the build from the start, whether a contract is holding funds or an agent is making decisions without someone watching every step. On communication: realistic estimates, early flags if something's off-track, and I'm equally comfortable running a project solo, coming in as an AI consultant on scope, or working inside someone else's codebase and conventions as a blockchain engineer. If you need a full-stack build, an AI agent, or a blockchain or smart contract project, send an invite and let's talk through scope. Full stack developer, full stack blockchain developer, blockchain developer, blockchain engineer, blockchain architect, blockchain consultant, blockchain expert, blockchain development, fractional cto blockchain, blockchain project manager, blockchain research, blockchain dao, blockchain tokenomics, blockchain wallet, blockchain website, rust blockchain, golang blockchain, polygon blockchain, sui blockchain, stellar blockchain, blockchain developer solana, blockchain development solana, crypto blockchain, ai blockchain, ai agent blockchain, web3 blockchain developer, web3 blockchain, web3 dapp, web3 frontend, web3 wallet, react web3, blockchain smart contract developer, blockchain smart contracts, solidity developer, defi developer, smart contract developer, ethereum developer, solana developer, evm developer, dex developer, swap contract, staking contract, vesting contract, token launchpad, liquidity pool, yield farming, cross chain bridge, nft developer, dapp developer, gas optimization, smart contract audit, wallet integration, tokenomics, presale contract, ai agent, ai chatbot, ai agent builder, ai agent n8n, open ai chatbot, ai llm, ai llm developer, ai rag, ai engineer rag nlp, ai research, ai researcher, ai automation zapier, ai developer zapier, ai integration, ai workflow, ai backend, ai backend developer, ai api intergration, ai bot, ai developer, open ai developer, ai full stack, ai software developer, ai programming, ai prompt engineer, ai models, ai model training, humanize ai, ai nlp, ai lead generation, ai sales agent, ai knowledge base, ai operator, ai outbound, ai learning, ai trainer, ai training, ai tools, ai marketing, ai email, ai help, ai governance, ai ethics, ai detection, ai data annotation, ai data collection, nvidia ai, react native ai, zendesk ai, airtable zapier, node.js developer, nestjs developer, typescript developer, react developer, postgresql developer, python developer, api integration developer, saas developer, web application developer, mobile app developer, front end developer, backend developer, software architect, technical cto, freelance developer, remote developer, igaming developer. Last Updated: 21.08.2026

🌟 100% Job Success | 🧑‍💻 7+ Years of experience I am a highly experienced Software Developer with over 7 years in software development, specializing in Typescript, NodeJs, UiPath, Microsoft Power Automate, and related technologies. I have a proven track record of delivering robust and scalable solutions and have successfully led cross-functional teams on numerous projects. Holds a master’s degree in Computer Science. FullStack Dev KEYWORDS: TypeScript, JavaScript, Fullstack Developer, Node.js, React.js, Angular, Vue.js, Express.js, MongoDB, SQL, MySQL, PostgreSQL, SQLite, REST API, GraphQL, Web Development, Frontend Developer, Backend Developer, MERN Stack, MEAN Stack, Next.js, NestJS, Redux, Tailwind CSS, SASS/SCSS, Webpack, Babel, Git, GitHub, CI/CD, Docker, Kubernetes, AWS, AWS Lambda, AWS S3, AWS DynamoDB, AWS RDS, AWS API Gateway, AWS CloudFormation, AWS CloudFront, Firebase, Azure, Microservices, Serverless, Agile Methodology, Test-Driven Development (TDD), Jest, Mocha, Chai, Cypress, E2E Testing, Authentication, Authorization, JWT, OAuth2, WebSockets, Real-time Applications, Serverless Architecture, Responsive Design, Cross-browser Compatibility, API Integration, Code Optimization, Performance Tuning, NoSQL, Redis, Elasticsearch, CouchDB, RabbitMQ, Kafka, Jenkins, Terraform, Ansible, Vagrant, JSON, XML, RESTful Services, Continuous Integration, Continuous Deployment, Nginx, Apache, Web Security, SSL/TLS, Load Balancing, Caching, AWS EC2, AWS ECS, AWS EKS, AWS CloudWatch, AWS IAM, AWS Fargate, AWS Step Functions, API Management, S3 Bucket, Lambda Functions, Containerization, DevOps, Scalability, High Availability, Fault Tolerance, Automation KEYWORDS: AI, RPA, Intelligent Automation, Automation Developer, UiPath, Microsoft Power Automate, Automation Anywhere, Blue Prism, ChatGPT, AI, Machine Learning,  Make, Zapier, Process Mining, Conversational AI, Cognitive Automation, Workflow Automation, Process Automation, Automation Frameworks, Intelligent Bots, Digital Transformation, Robotic Process Automation, Scripting, Python, JavaScript, VBA, PowerShell, Automation Tools, C#,  Automated Workflows, Decision Automation, Natural Language Processing, NLP, OCR, Data Extraction, Task Automation, Automated Data Entry, Hyperautomation, Process Orchestration, Automation Design, Business Process Automation, Low-Code Automation, No-Code Platforms, Bot Deployment, Process Optimization, Automation Analytics, Digital Workforce, Process Efficiency, Data Analytics, Machine Vision, API Integrations, API Automation, Process Mapping, Automation Roadmap, Process Improvement, Automation Scalability, End-to-End Automation, Hyperautomation, Boomi

We are a Blockchain & Web3 development team delivering full-cycle solutions - from idea to mainnet launch Our core focus is building scalable, secure, and production-ready Web3 products using modern tech stack and proven architecture. 🔧 Our Tech Stack Blockchain: Solidity, EVM (Ethereum, Arbitrum, BNB Chain, Polygon, Avalanche), Smart Contracts, Web3 integrations Frontend: React.js, Next.js, Web3.js, Ethers.js, Wagmi, WalletConnect Backend: Node.js, Express.js, NestJS, REST APIs, WebSockets Mobile: React Native (Web3 wallets, mobile dApps) Infrastructure: Docker, AWS, CI/CD, Hardhat, Foundry 💼 What We Build Smart Contracts (ERC20, ERC721, ERC1155) Token Development & TGE Launch DeFi Platforms (staking, lending, yield farming) DApps (full-stack Web3 applications) Launchpads & IDO Platforms Crypto Payment Integrations (on/off-ramp, wallets) Custom Web3 Dashboards & Admin Panels (реально відображає ваші кейси типу токенів, TGE, launchpad ) ⚙️ How We Work End-to-end development (Smart Contracts + Frontend + Backend) Clean, maintainable and scalable architecture Security-first approach (testing, audits, best practices) Fast delivery with clear milestones 🧠 Why Clients Choose Us Strong expertise in Web3 / Blockchain / DeFi Experience with tokens, staking, launchpads, and complex dApps Deep understanding of product + business logic, not just code Dedicated team (Blockchain + Frontend + Backend + PM) 📩 Let’s Build Your Web3 Product If you are looking to build a token, DeFi platform, dApp or full Web3 ecosystem - we can help you deliver it fast and right.

Is your blockchain product ready for real users, or is it a prototype that breaks under live transactions? Most Web3 projects fail at the boundaries between smart contracts, wallets, trading operations, and backend systems. 🏆 20+ years architecting production systems at principal engineer level 📊 $200K+ earned on Upwork across 32 architecture projects 🎯 100% Job Success Score, Top Rated Plus on Upwork ⚡ 11 years architecting Fintech / Trading / Accounting solutions ⚡ 8 years architecting blockchain products across Bitcoin, EVM, Solana ecosystems 💼 CEO at Osambit, a 20-person engineering team ✅ Enterprise Blockchain Architect certified, former Sr Principal Engineer at Nordstrom ⭐⭐⭐⭐⭐ "We've had the opportunity to collaborate with the Osambit team, and it's been a great experience. They're highly professional, responsive, and truly understand the final goal. Their technical expertise and ability to deliver on time have been key to the success." (Alwyn V., IXO World) As a Blockchain Architect with 20+ years of production engineering experience and two years focused on Web3, I design blockchain and fintech products that operate reliably beyond a demo. I work across Solana and EVM networks—including Ethereum, Polygon, Base, BSC, and Arbitrum—as well as enterprise platforms such as Hyperledger Fabric and Besu. My work connects secure smart-contract, wallet, payment, and remittance flows with the backend systems, operational controls, and user experiences a real product needs. Every engagement starts with architecture: chain selection, custody and transaction boundaries, compliance-aware workflows, failure modes, scalability, and security. That architecture-first approach helps blockchain and neobanking products withstand live usage, not just testnet scenarios. 🔶 Centralized exchange: architecture for trading operations, wallet flows, and reliable backend integration 🔶 Custodial wallets: secure custody, transaction handling, and multi-wallet platform architecture 🔶 Trading automation system: real-time blockchain-integrated trading workflows with operational safeguards 🔶 Liquidity automation system: DeFi and liquidity-management automation across Solana and EVM ecosystems 🔶 Fintech, neobanking & remittance apps: payment, account, wallet, and cross-border transfer architecture 🔶 Bitcoin mining facility control panel: operational dashboard and control-system architecture for mining infrastructure 🔶 Blockchain-integrated game: NFT features, token and wallet integrations, and production-ready game backend design 🔶 Enterprise blockchain solutions: permissioned-network architecture and public-chain integrations using Hyperledger Fabric or Besu 🔶 Nordstrom (Sr Principal Engineer, 5 years): architected 9+ enterprise systems | led 10 offshore engineering teams | supply chain, payment, logistics domains WHAT I DO ✅ Blockchain Architecture: chain selection, system design, security boundaries, and production rollout planning ✅ Solana Development: Rust programs, SPL standards, RPC integrations, and high-throughput DeFi systems ✅ EVM & Smart Contracts: Solidity development and integrations for Ethereum, Polygon, Base, BSC, and Arbitrum ✅ Wallet & Custody Systems: custodial wallet architecture, secure transaction handling, and multi-wallet integrations ✅ Fintech, Neobanking & Remittance: payment flows, account and wallet systems, cross-border transfers, and operational controls ✅ DeFi, Trading & Liquidity Automation: trading workflows, liquidity systems, DEX integrations, and operational controls ✅ NFT & Tokenized Products: NFT minting, metadata, marketplace and royalty logic, and blockchain-integrated game features ✅ Enterprise Blockchain: Hyperledger Fabric and Besu solutions, permissioned-network architecture, and API or oracle integrations ✅ Full-Stack Web3 Platforms: React interfaces, Node.js or Python backends, web3 integrations, and real-time transaction services ✅ Production Infrastructure: AWS, Docker, Kubernetes, CI/CD, observability, automated testing, and scalable data systems WHO I WORK WITH 🎯 B2B and B2C companies building blockchain products, fintech and neobanking apps, exchanges, wallets, DeFi platforms, or games 🎯 Founders and CTOs who need Web3, payment, or remittance systems running in production with real users and real assets 🎯 Teams with multi-week engagements (4+ weeks minimum), not 5-minute tasks 🎯 Companies that understand blockchain architecture is a system design and security problem, not just a smart-contract problem 🎯 Clients who value senior engineering judgment over the cheapest hourly rate MY PROCESS 1️⃣ Architecture Review: 24-hour turnaround on an initial system map, risk review, and scope estimate for your blockchain or fintech product. Close collaboration with business and deep domain immersion. 2️⃣ Design: chain selection, smart-contract, wallet, payment, and remittance boundaries, backend integration, and security plan 3️⃣ Build: production blockchain or fintech