FullStack Developer with 10+ years of experience in technologies and frameworks like Backend Frameworks & Languages: Node.js, Typescript,Laravel, CakePHP, Codeiginator, Zend,Symfony, Yii, Python Frontend frameworks: React, Angular, Vue, Next.js Blockchain: Solidity, Rust, Python Database: Mysql, MariaDB, MongoDB, Firebase Devops: Kubernetes, Docker, AWS CI/CD: Github, Gitlab, Bitbucket Expertise & development highlights: UI development, client/server systems, web development (AngularJS, React, VueJS), NFT Market place development (Multi-chain, Contracts, Royalties, Message Signing)

🚀 Expert AI Engineer & Full Stack Developer ✅ 8+ Years of Proven Experience in Web Development & AI Solutions ✅ Specialized in Building Scalable, Efficient Solutions for Complex Projects 💬 Free Consultation Available — I’m happy to discuss your ideas and offer insights to improve your technology stack. 🔹 About Me Hello and welcome to my profile! I’m a skilled full stack developer with extensive experience in crafting robust web and mobile applications, AI solutions, and high-performance systems. My approach is centered on innovation, adaptability, and client satisfaction. 🔹 Expertise & Skills AI Platforms & Models: LLM Platforms/Models: OpenAI, Anthropic, Mistral, LLaMA, Cohere Vector Databases: Pinecone, Weaviate, FAISS, ChromaDB Web Development Skills: Backend: Python, Node.js, Next.js, Express.js, TypeScript, PHP Frontend: Vue.js, React.js, HTML5, CSS animations, Responsive/Adaptive PSD-to-HTML Real-time Development: Push notifications, Browser-native notifications, WebSockets, Socket.io Additional Expertise: Shopify Themes & Apps Development CRM & ERP Systems API Development & Integrations DevOps Solutions Highload Performance & Optimization Ecommerce Solutions Infrastructure & Deployment: SQL/NoSQL Databases: Redis, MongoDB, MySQL, PostgreSQL, Pinecone Queue Systems: Beanstalkd, Gearman, IronMQ, RabbitMQ, SQS, ZeroMQ Deployment Automation: Docker, Apache, Linux, Ubuntu, CentOS, Windows, Nginx 💡 I’m always eager to enhance my skill set and adopt emerging technologies. Whether you have a large-scale, long-term project or a quick short-term need, I’m fully available to collaborate and deliver outstanding results. Let's turn your vision into a successful reality!

* Over 15 years of hands-on experience in leading a team of software developers. * Extensive experience in developing mobile, desktop, web, blockchain, IoT, and corporate solutions. * Expert knowledge of Object-Oriented Programming. * Expert knowledge in cross-platform software development for mobile (Android, iOS, WebOS, Tizen) and desktop operating systems (Windows, Linux, macOS) using C++ with wxWidgets, and C# with Xamarin. * Proven experience in successfully managing Blockchain startups. * 20 years of experience in software development. * wxWidgets Technology Evangelist in Eastern Europe.

Highly accomplished and motivated Senior Software Engineer with over a decade of hands-on experience. Proven track record of delivering innovative and secure solutions and driving project success through the application of cutting-edge technologies. Adept at leading cross-functional teams and collaborating with stakeholders to achieve business objectives. Currently building and testing secured RestAPIs, Web Apps, and Mobile Apps using technologies such as GCP, AWS, Azure, Python, Pandas, Flask, ORM, Powershell, SQL, NoSQL, Bash, JavaScript, TypeScript, HTML, CSS, Jest, Solidity, React, React Native, Vue, Node, Redux, Expo, Google Firebase, Clerk, Ansible, AWS CDK, Azure DevOps, Azure Pipelines, Windows Server, Linux, Docker, Microservices, VPN, Blockchain, Networking, Virtualization, and more.

𝟵 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 building scalable, high-impact products across Agentic AI, Full Stack Web, and blockchain systems - spanning AI, Web2, and Web3. 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗔𝗜 & 𝗟𝗟𝗠 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴: Specialized in designing real-time cognitive engines with advanced LLM orchestration, building production-grade AI pipelines, and integrating autonomous intelligent agents into practical applications that elevate user experience and operational efficiency. Proven track record architecting multi-agent systems that reason, plan, and act with minimal human intervention. 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 - 𝗡𝗲𝘅𝘁.𝗷𝘀 & 𝗙𝗮𝘀𝘁𝗔𝗣𝗜: Deep expertise delivering end-to-end full-stack solutions using Next.js for performant, SEO-optimized frontends and FastAPI for high-throughput, async Python backends - the ideal pairing for modern AI-powered web applications. Experienced in modernizing legacy systems into intuitive, scalable platforms while maintaining performance, reliability, and speed in fast-paced environments. 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 & 𝗪𝗲𝗯𝟯 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: Strong background in blockchain infrastructure, including deploying smart contracts responsible for over $1M in on-chain transactions, with hands-on experience bridging decentralized systems with AI and full-stack web layers. 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 & 𝗙𝗼𝘂𝗻𝗱𝗶𝗻𝗴 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: As a founding engineer, I have led architectural decisions, established engineering standards, mentored teams, and driven complex products from concept to production. My work has been recognized across AI and Web3 communities, reflecting a passion for innovation and building technologies with real-world impact. 𝗜 𝘁𝗵𝗿𝗶𝘃𝗲 𝗮𝘁 𝘁𝗵𝗲 𝗶𝗻𝘁𝗲𝗿𝘀𝗲𝗰𝘁𝗶𝗼𝗻 𝗼𝗳 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗔𝗜, 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴, 𝗮𝗻𝗱 𝗗𝗲𝗰𝗲𝗻𝘁𝗿𝗮𝗹𝗶𝘇𝗲𝗱 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 - turning ambitious ideas into reliable, user-focused solutions with Next.js, FastAPI, and autonomous AI at the core.

If you're looking for a Full Stack Engineer who understands both development and deployment, you're in the right place. As a Full Stack Engineer with 7+ years of experience, I build scalable, reliable, and production-ready systems that help businesses grow. I have successfully delivered SaaS platforms, logistics systems, ERP solutions, real-time applications, and enterprise-grade products. 💡 What Makes Me Different As a Full Stack Engineer (MERN | Laravel | AWS), I focus on: 🔹 Building systems that scale with your business 🔹 Writing clean, maintainable, and secure code 🔹 Ensuring fast, reliable deployments with DevOps practices 🔹 Delivering solutions that solve real business problems 🛠️ My Core Tech Expertise 🟢 MERN Stack Development MongoDB • Express.js • React.js • Node.js I build modern, high-performance web applications, SaaS platforms, dashboards, and real-time systems using the complete MERN stack. This includes MongoDB for flexible NoSQL databases, Express.js for backend APIs, React.js for interactive user interfaces, and Node.js for server-side JavaScript execution. 🟣 Laravel & Backend Systems Laravel • PHP • MySQL • PostgreSQL I build secure, scalable backend development, admin panels, enterprise applications, ERP systems, RESTful APIs, and e-commerce platforms using Laravel with MySQL or PostgreSQL including queues, caching, event handling, authentication, and Eloquent ORM. 🟠 Cloud & DevOps (AWS Specialist) AWS (EC2, S3, RDS, Lambda, API Gateway, CloudFront, IAM, Cognito, VPC, Load Balancer) Docker • Kubernetes • CI/CD (GitHub Actions, Jenkins) • Nginx • Apache As a Full Stack Engineer with DevOps expertise, I ensure your app is deployed, scalable, monitored, and always running smoothly on AWS cloud infrastructure with automated CI/CD pipelines and container orchestration. 🔴 Databases MongoDB • MySQL • PostgreSQL • DynamoDB • Redis I design efficient database architectures including both SQL and NoSQL databases, with indexing, aggregation pipelines, complex joins, query optimization, and database scaling strategies. 🟡 Frontend Development React.js • Next.js • Tailwind CSS • Bootstrap • Redux • Context API • HTML5 • CSS3 I build fast, responsive, pixel-perfect, and interactive user interfaces with React.js and Next.js, ensuring seamless API integration, state management, server-side rendering, and optimal performance. 🟤 Authentication & Security JWT • OAuth2 • Laravel Sanctum • Laravel Passport • AWS Cognito • bcrypt • CSRF Protection I implement secure authentication systems including JWT for stateless APIs, OAuth2 for social logins, Laravel Sanctum for SPA authentication, Laravel Passport for full OAuth2 servers, and AWS Cognito for user management at scale. 💼 What I Can Build For You ✔ Full Stack Web Applications using MERN Stack (MongoDB, Express, React, Node.js) ✔ Full Stack Web Applications using Laravel + React with MySQL or PostgreSQL ✔ Scalable REST APIs and GraphQL APIs with proper documentation and versioning ✔ Cloud-Based Systems on AWS with serverless, microservices, or container architecture ✔ SaaS Platforms and Admin Dashboards with role-based access control ✔ Secure Authentication with JWT, OAuth2, Laravel Sanctum, or Laravel Passport ✔ Enterprise ERP and CRM Systems with complex business logic and reporting ✔ E-Commerce Platforms with payment gateway integration and inventory management ✔ CI/CD Pipelines with Docker, Kubernetes, GitHub Actions, and Jenkins for automated deployment ✔ Mobile App Backends with REST APIs for iOS and Android apps ✔ Database Design and Optimization for MongoDB, MySQL, and PostgreSQL 🎯 Why Clients Choose Me ✔ Experienced Full Stack Engineer with MERN, Laravel, and AWS expertise and 7+ years of experience ✔ Strong system design and architectural problem-solving skills for complex business requirements ✔ DevOps-first approach ensuring reliable, zero-downtime deployments and automatic scaling on AWS ✔ Clear communication, regular updates, and guaranteed on-time delivery ✔ Focus on long-term, scalable solutions that grow with your business ✔ Full ownership from initial idea to production deployment and post-launch support ✔ Clean, documented, and maintainable code that your team can easily understand 🚀 Let's Build Something Scalable Whether you need a modern MERN web application, a secure Laravel backend with React frontend, AWS cloud architecture, a real-time system with live features, or a complete enterprise dashboard. I can help you turn your idea into a high-performing, production-ready product. Keywords Full Stack Engineer, Developer, MERN Stack, Laravel, AWS, Solutions Architect, Web Developer, Expert, MongoDB, Express.js, React.js, Node.js, PHP, MySQL, PostgreSQL, EC2, S3, RDS, Lambda, API Gateway, CloudFront, IAM, Cognito, Docker, Kubernetes, CI/CD Pipeline, GitHub Actions, Jenkins, REST API, GraphQL, Real-Time Applications, SaaS, ERP, Admin Panel, E-commerce, API Integration, Third-Party API, JWT

👋 Hello! I'm a Senior Developer 🚀 10+ years of experience in AI/ML, Data Science, and Web3/Cryptocurrency technologies. I specialize in building intelligent, data-driven, and automated systems — from AI-powered applications to high-performance data pipelines and decentralized platforms. 🧠 AI / Machine Learning Multi-Agent Systems with Reactive Automation, Memory Management & Self-Correcting RAG Expertise in Machine Learning, Deep Learning, and NLP Modeling Applied LangChain, MCP, PyTorch, TensorFlow, and more ⚙️ Technical Expertise Languages: Python, Rust, C/C++, Golang, JavaScript/TypeScript Databases: PostgreSQL, MySQL, MongoDB, ClickHouse, InfluxDB AI & ML Tools: LangChain, Model Context Protocol (MCP), PyTorch, TensorFlow, n8n/make Data & Visualization: Spark, Pandas, Matplotlib, Seaborn Front-End: React, Next.js Cloud & DevOps: AWS, Firebase, Supabase, Vercel, Cloudflare Containerization: Docker, Kubernetes (k8s) 💡 Why Work With Me? With years of leadership experience in top-tier companies, I bring a blend of technical depth, strategic thinking, and team collaboration. I value Responsibility, Simplicity, and Passion — the three pillars of great engineering. 📩 Let’s collaborate and transform your data and ideas into powerful, intelligent systems!

⭐Top Rated Plus On Upwork⭐ I lead discovery, architecture, and delivery strategy, then our 100+ engineer team executes with enterprise discipline (weekly demos, Jira/QA gates, and clear stakeholder reporting). US-based leadership with globally distributed engineering for speed and value. 💪 Services Provided: MVP Development Web Development/CMS (WordPress) E-commerce Solutions (Shopify, WooCommerce) AR/VR Projects (Unity) Blockchain Development (Solidity, Web3, Remix IDE) Full Stack Development (Node, React, Typescript, SQL, MongoDB, Laravel, PHP) CRM & SaaS Platforms Development Salesforce Integrations Data Scraping (Python, Selenium) API Development (REST, SOAP) UX/UI Design (Figma) ✅ Microsoft Expertise: Power Apps (Canvas Apps, Power Pages, Model Driven Apps) SharePoint Customization & Integration Power Automate (Cloud & Desktop) Microsoft Dynamics 365/CRM Power BI (Data Visualization & Reporting) .NET Applications Azure (Data Lakes, IoT, OpenAI, Kubernetes) ⭐Engagement model & quality * US-led + global delivery for velocity and value; founders from top-tier tech with an on-time track record. * Agile rhythm: 2-week sprints, weekly syncs/demos, Jira tracking. * QA gates: Every code change verified; UAT, reports, and ticket hygiene. * Clear comms: Slack groups, status emails, task alerts, Jira/Trello reporting. Leadership snapshot Senior Manager at Microsoft; 11+ years software dev; 10+ years startup; B.S. CS (UMass). I focus on ROI, reliability, and shipping the smallest thing that delivers value, then scaling it with data. Ready to Build Your Vision? At Code Upscale, we don’t just develop software, we empower businesses with solutions tailored to their goals. Whether it’s rescuing a struggling project or creating a product from scratch, we’re here to help. Contact us today for a consultation and discover how we can make your project a success.

🤖 I build production AI systems - not API demos. I'm Dmitry, an AI Engineer with 10+ years of full-stack background. I help SaaS, crypto, and digital product companies ship AI features that work with real users - at scale, within token budgets, with proper fallbacks. The difference matters. Anyone can call the OpenAI API in a tutorial. The hard part is making AI features that don't break in production: conversation memory that persists, prompts that survive edge cases, streaming that handles network drops, and costs that don't spiral. That's what I do. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 What clients hire me for ✅ Custom ChatGPT / GPT-4o / Claude integrations into existing apps ✅ RAG systems with vector search over business documents ✅ AI chatbots & assistants with persistent context (web + mobile) ✅ AI workflow automation (n8n + LLM for ops) ✅ Token cost optimization & prompt engineering ✅ Taking AI-built MVPs (Lovable, Cursor, Bolt) to production-grade ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📂 Recent production AI work 🔹 HOMI - Learning platform with ChatGPT-powered lesson generator Built GPT-4 integration into live LMS app with paying users. Custom prompts, streaming responses, conversation memory, ChatGPT-driven sample conversations, fallback handling. Live for 2+ years. $26K+ delivered across 4 contracts - same client kept coming back. 🔹 TapSwap - Gamified learning center for crypto exchange Built end-to-end LMS with 70 educational articles, 820 quiz questions, real-time leaderboard, reward redemption system. Angular + Firebase + custom gamification logic. 🔹 Style 220 - AR mobile app for VIMAR (Italian electrical products) Augmented reality "try-on" for switches and sockets in interior settings. iOS + Android, integrated with online store and order placement workflow. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ My technical stack AI: OpenAI (GPT-4o, GPT-4, DALL-E, Whisper), Claude API, LangChain Backend: Node.js, NestJS, Express, Firebase Cloud Functions Frontend: Angular, Ionic, TypeScript, RxJS, Tailwind CSS Mobile: Hybrid apps (Ionic + Capacitor) for iOS & Android Databases: Firestore, MongoDB, PostgreSQL Cloud: Firebase, GCP, AWS, Vercel, Cloudflare Automation: n8n, MakeCom, webhook orchestration ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🏢 Backed by WhyNet Agency I work with a senior team of 4 engineers + 1 PM under WhyNet - 8 years on Upwork, 100% Job Success, $500K+ delivered, 84 completed projects. This means: senior code review on every project, dedicated project manager keeping communication on track, additional engineering capacity when scope grows beyond what one developer should handle. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💼 How I work → Async-first communication. No 5-call discovery loops before contract. → Structured PDF proposal within 24-48h after we discuss your project. → Weekly demos so you see real progress, not status reports. → Production-grade code with proper architecture, error handling, testing. → Direct and honest. If something won't work, I'll tell you before we start. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 I work best with ✓ SaaS founders adding AI features to existing products ✓ Crypto / Web3 teams needing chatbots, RAG, or AI tooling ✓ EdTech companies building AI-assisted learning experiences ✓ Companies taking AI-generated MVPs to real production ✓ Teams replacing manual operations with n8n + LLM workflows ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✨ Ready to start? Send your project description - you get a structured proposal in 24-48h. Not a generic "let's hop on a call" template. - Dmitry · WhyNet CTO

Hi, I'm Kilian — a full-stack Web3 and AI developer based in Prague, Czech Republic with a proven track record of shipping products and winning hackathons. I've shipped 11+ projects across Web3, SaaS, desktop apps, and games — working with technologies like NextJS, TypeScript, Solidity, Rust, Tauri, and Svelte across multiple blockchains including Ronin, Polkadot, and Base. Hackathon Achievements (6 hackathons, 8 awards): - ETHGlobal Cannes — Best Consumer App on Ronin, 1st Place - Polkadot Web0 Berlin — Main Track Winner + Ink Alliance Bounty + UX Bounty (3 prizes) - ETHWarsaw — Best Mini App on Base, 1st Place - ETHGlobal Buenos Aires — Best Consumer/AI dApp on Ronin, 2nd Place - Sub0 Symbiosis — XX Network Bounty, 1st Place ($3,000) - Polkadot Cloud Hackathon — Community Roots Meetup Prize Notable Projects: - Ronkeverse — Built NFT casino games, landing pages, leaderboard systems, and backend infrastructure on Ronin - Allstake — Sole developer of a cross-chain Web3 platform with NFT marketplaces, staking, auctions, and raffles - Minefield Navigator — First developer hire for a SaaS platform helping e-commerce sellers expand into Europe - The Agency — An autonomous multi-agent AI system built on Claude Code My core stack: NextJS, TypeScript, Solidity, Tailwind CSS, and smart contract development. I also work with Rust, Tauri, Svelte, PhaserJS, and various blockchain ecosystems. I'm passionate about building innovative decentralized applications and bringing creative ideas to life. Let's connect and build something great together.