𝐓𝐨𝐩 4% 𝐏𝐲𝐭𝐡𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐚𝐜𝐜𝐨𝐫𝐝𝐢𝐧𝐠 𝐭𝐨 𝐂𝐨𝐝𝐞𝐫𝐬𝐑𝐚𝐧𝐤 delivering full-stack web and mobile app development with a focus on AI automation, API integration, and data-driven engineering. Building and developing scalable web applications, platforms, and software tools using Python, Django, FastAPI, Flask, React, Angular, and OpenAI API, creating intelligent, high-performance digital products. Expert in connecting front-end and back-end technologies to ensure seamless user experience and maintainable architecture. ⚡ Highlights 🏆 8+ years of experience | 46+ successful projects 🤖 Expertise in AI development, ChatGPT integration, and machine learning 🧠 Proven record in SaaS, FinTech, Healthcare, and Education platforms 💡 Notable Projects 🧠 Sembli AI — AI assistant for meeting transcription and summaries using Python, React, Flask, and OpenAI API. 📊 Simba — AI-powered Marketing Analytics Platform. ChatGPT-based assistant built with Python, Flask, React, Pandas, Tailwind CSS, and S3. 🪙 Google Ad Grants Tool — AI automation for keyword structuring using OpenAI API, Python, React, and web scraping crawlers. 🧩 Tech Expertise Languages: Python, JavaScript, TypeScript, PHP, HTML, CSS, SQL Frameworks: Django, Django REST Framework, Flask, FastAPI, React, React Native, Angular, Node.js, Next.js AI / ML / Data Science: Artificial Intelligence, Artifical Intelligence, Artificial Inteligence, Machine Learning, Deep Learning, ChatGPT, GPT-3, OpenAI API, Data Analysis, Pandas, NumPy, neural networks, embeddings, Python scripts, AI chatbot development, AI automation Data Scraping & ETL: Scrapy, Selenium, BeautifulSoup, Splash, Data Scraping, ETL pipelines, Excel, data engineering, visualization dashboards Backend & API Development: RESTful APIs, API Integration, GraphQL, OAuth, WebRTC, Socket, RPC, Zapier, Stripe API, PayPal API, payment gateways Frontend: Responsive design, React Components, Tailwind CSS, UI/UX, front-end optimization Cloud & DevOps: AWS, Google Cloud (GCP), Firebase, Docker, Kubernetes, Heroku, CI/CD, Git Databases: PostgreSQL, MySQL, MongoDB, Redis, SQLite Testing: Pytest, Selenium, Cypress, Puppeteer Experienced in full-stack / fullstack / full stack / front-end / frontend / front end / back-end / backend / back end software engineering and application development across web platforms, mobile systems, and AI-driven apps. Additional experience includes AWS Developer work, code review, Excel data automation, and MPPT-based smart control systems. Also skilled as an Artificial Intelligence Engineer with expertise in full-stack architecture and AI integrations. 🌍 Industries 📍 SaaS & B2B Platforms 📍 FinTech & Analytics 📍 Healthcare & Telehealth 📍 Education, E-learning & LMS 📍 Non-profit & Social Good 📍 Marketing, SEO & CRM 📍 Media, Music & Social Platforms 🧱 Project Types ✅ MVP, SaaS MVP, startup prototype, and clickable Figma prototype ✅ AI & ML application development ✅ Web & mobile app creation ✅ REST & GraphQL API integration ✅ Workflow automation and data scraping solutions ✅ Payment gateway (Stripe, PayPal, EOS) ✅ Business intelligence dashboards ✅ CMS & WordPress website development 🔧 Approach The focus is on building scalable, intelligent web solutions that automate workflows, analyze data, and deliver seamless digital experiences. Every product whether a web app, mobile application, or AI-powered platform is created with clean code, maintainability, and innovation in mind. Projects are engineered to combine Artificial Intelligence, data science, and modern web technologies to bring clients’ ideas to life from prototype to enterprise system. 🤝 Collaboration Open to working with: 🏆 Startups (MVP & SaaS prototyping) 🏆 SMBs & Enterprises (process automation, web apps) 🏆 Non-profits (AI & data-driven impact tools) Ready to create your next AI-powered product? Let’s build and develop your next intelligent digital product turning ideas into reality through smart engineering and AI innovation.

I am a Node.js developer with over 15 years of Full-Stack development experience. I've built 220+ web projects. I have 10+ years in Node.js development. Besides, I specialize in SaaS, Dashboards, Healthcare, Marketplaces, MarTech, FinTech, Real Estate, mobile apps, and enterprise software. 🏆 112k+ billed Full-Stack Development 💎 $4m+ earned in Full Stack Development 🥇 Senior full stack developer in React.js Node.js AWS Next.js Nest.js JavaScript Developer 📢 Our client, Eventbrite company, boasting $580M in revenue, said about working with us: "𝗧𝗵𝗲 𝗖𝗹𝗼𝗰𝗸𝘄𝗶𝘀𝗲 𝘁𝗲𝗮𝗺 𝘄𝗮𝘀 𝗲𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝘁. 𝗪𝗲 𝗮𝗿𝗲 𝘁𝗵𝗿𝗶𝗹𝗹𝗲𝗱 𝘄𝗶𝘁𝗵 𝘁𝗵𝗲 𝗳𝗶𝗻𝗮𝗹 𝗽𝗿𝗼𝗱𝘂𝗰𝘁". As a skilled Node.js Developer, I’m proficient in AWS, Serverless, and Microservices, leveraging NestJS and ReactJS to craft scalable systems, and I specialize in building reliable solutions as a Node.js Developer using Vue.js Node.js, NestJS, and React.js. With Nest.js, I build strong server-side apps that have a smart structure and fast API routing. As a Node.js developer, I rely on TypeScript and Nest.js’s detailed docs to write code that’s easy to read and maintain. I also plug in extra Nest.js modules to simplify linking up with databases and outside services, making development quicker and more organized. I'm a skilled Node.js backend JavaScript developer with a focus on Node.js, crafting scalable and efficient server-side solutions. I harness MongoDB alongside Node.js to deliver versatile NoSQL database systems and possess deep knowledge of SQL for overseeing relational databases, ensuring data remains consistent and reliable. ➤ 𝗖𝗹𝗼𝗰𝗸𝘄𝗶𝘀𝗲 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗧𝗲𝗮𝗺 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 💯 100% Top Rated Plus - 🎯 Top 3% of companies 📢 50% of our clients work with us for over 3 years 💎 84% of our clients strongly recommend our Node.js expertise 🥇 Awarded 'Best Upwork Agency in Dnipro' by Upwork 4 years running 🏆 Named 'Top Ukraine Development Company' by Clutch 3 years in a row 📱💻 310+ successfully completed projects over 10 years with a 4.9🏆 3rd-party rating 👉 𝗪𝗵𝘆 𝗬𝗼𝘂 𝗦𝗵𝗼𝘂𝗹𝗱 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 𝗔𝘀 𝗬𝗼𝘂𝗿 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 ☑️ Latest Technologies: As a Node.js Developer, I harness Node.js, NodeJS, React, Vue.js, MongoDB, and Angular to build modern, scalable web applications. My expertise in NodeJS ensures your business stays competitive. ☑️ End-to-End Product Development: With comprehensive skills in Node.js for back-end and front-end technologies, I deliver fully integrated solutions as a Node.js Developer. Using NodeJS, I ensure cohesive user experiences and robust performance for faster project delivery. ☑️ Expertise Across Multiple Industries: As a Node.js Developer, I’ve completed projects in MarTech, Real Estate, Logistics, Healthcare, Travel and Hospitality, and FinTech using Node.js. My adaptability with NodeJS tailors strategies to your market. 𝗡𝗼𝘁𝗮𝗯𝗹𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 ✔ Customized AI chatbot SaaS built with Node.js and OpenAI ✔ Multi-tenant fleet management software powered by NodeJS React Developer ✔ Logistic using Node.js ✔ Fintech solutions with a strong UX focus, developed as a Node.js JavaScript Developer 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗗𝗼 𝗙𝗼𝗿 𝗬𝗼𝘂 𝗔𝘀 𝗮 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 ✔ Develop web apps and websites from scratch using Node.js ✔ Handle client-side and server-side development with NodeJS Backend Developer ✔ AI Chatbot Development | AI Chatbot Developer ✔ Design application architecture tailored to your needs using Node.js ✔ Integrate third-party services (payment systems, Google services, social networks) with NodeJS Full Stack Developer ✔ Optimize high-load apps for speed, scalability, reliability, and security as a Node.js Developer ✔ Write comprehensive unit tests with Node.js for optimal user experiences As a passionate full stack developer Node.js Developer, I embrace new challenges and technologies. If your project requires unfamiliar tools, I’ll master them with Node.JS to deliver results. Have an idea needing skilled implementation? 𝗟𝗲𝘁’𝘀 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝗵𝗼𝘄 𝗺𝘆 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗰𝗮𝗻 𝗯𝗿𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝘃𝗶𝘀𝗶𝗼𝗻 𝘁𝗼 𝗹𝗶𝗳𝗲! 👌

⚡ Top Rated Plus React Developer | 13+ Years of Experience | 𝐀𝐈-𝐃𝐫𝐢𝐯𝐞𝐧 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 & Full Stack Engineer ⚡ 𝐌𝐨𝐝𝐞𝐫𝐧 𝐀𝐈 𝐒𝐭𝐚𝐜𝐤: 𝐂𝐮𝐫𝐬𝐨𝐫, 𝐋𝐨𝐯𝐚𝐛𝐥𝐞, 𝐂𝐥𝐚𝐮𝐝𝐞 𝐂𝐨𝐝𝐞, 𝐆𝐢𝐭𝐇𝐮𝐛 𝐂𝐨𝐩𝐢𝐥𝐨𝐭, 𝐆𝐏𝐓-𝟒/𝐆𝐏𝐓-𝟒𝐨, 𝐂𝐥𝐚𝐮𝐝𝐞 𝐒𝐨𝐧𝐧𝐞𝐭/𝐎𝐩𝐮𝐬 ⚡ 𝐀𝐈-𝐀𝐬𝐬𝐢𝐬𝐭𝐞𝐝 Debugging, Refactoring, UI Optimization & Frontend Automation 🙋‍♂️ Click Hire or Invite Full Stack React Developer | React Native Developer | 𝐀𝐈 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐄𝐱𝐩𝐞𝐫𝐭 💻 WHAT YOU GET Full Stack Node.js React Developer - 13+ years of engineering scalable SaaS platforms, dashboards, and heavy cloud-connected architectures. React Developer with experience in Next.js - fast SSR/SSG implementation, SEO-optimized web setups, and advanced React Animation workflows. React Native Developer - high-performance Hybrid App Development for iOS, Android, and Smartphone ecosystems. 📊 ACHIEVEMENTS IN NUMBERS (BUSINESS IMPACT) 13+ years, 25,000+ hours, 100+ digital products delivered as a Senior React Developer, ReactJS Developer, and Front-End Developer. Full Stack Developer React Node for an Enterprise SaaS & React Dashboard: Boosted data rendering and page load speed by 210% using advanced caching, Next.js, and state management (Redux). Reduced server infrastructure costs by 40% by optimizing Node.js API backend architecture and MongoDB query aggregation. React Developer Firebase Specialist for an AI-powered MVP: Accelerated time-to-market by 6 weeks utilizing AI App Development workflows and serverless Firebase integrations. Increased user activation rates by 35% by implementing pixel-perfect Web Design and interactive micro-interactions with smooth React Animation. React Native & Hybrid App Development for a FinTech Smartphone App: Designed and launched a cross-platform iOS & Android application from a single codebase, saving the client 45% in budget. Boosted mobile conversion rates by 25% using deep Responsive Design practices for all Smartphone form factors. 🎯 WHERE I DELIVER (EXPERTISE) As a React Developer & Front-End Developer: I build fluid, scalable user interfaces from scratch using JavaScript, TypeScript, HTML5, and CSS / Bootstrap, ensuring a premium feel. As a Next.js & React Dashboard Architect: I implement secure admin panels, real-time analytics hubs, complex data visualizations, and modern server-side architectures. As a Full Stack Node.js React Expert: End-to-end product engineering from building custom backend APIs with Node.js and Python, to structuring stable database layers via MongoDB and SQL. As a React Native Developer: High-fidelity Hybrid App Development, native device feature integration (biometrics, camera, background tasks) for iOS and Android Smartphone devices. As a React Designer: Bridging the gap between UI/UX and code, ensuring that layouts respect the developer-ready guidelines and maintain a conversion-focused approach. 🛠 HOW I BUILD (TECH SKILLS) Core Frontend: React, React.js, Next.js, JavaScript, TypeScript, HTML5, CSS, Bootstrap, Tailwind CSS. State & Data Architecture: Redux, Redux Toolkit, Zustand, React Query, Apollo GraphQL. Backend & API Systems: Node.js, Python, MongoDB, Firebase, REST API, GraphQL. Mobile & Hybrid Platforms: React Native, Hybrid App Development, Smartphone apps, iOS, Android integrations. Advanced Mechanics: React Animation (Framer Motion), React Dashboard UI, Responsive Design, Web Design, Web Performance Engineering. 🤖 AI-DRIVEN DEVELOPMENT WORKFLOW As an AI-Driven Frontend & Full Stack Engineer, I actively combine 13+ years of core engineering logic with cutting-edge AI-native tools (Cursor, Claude Code, GitHub Copilot, OpenAI GPT-4o, Claude Sonnet) to: Accelerate Delivery: Speed up repetitive front-end development by 30-40%, getting your MVP to launch faster. Enhance Code Quality: Automated AI-assisted code reviews, bulletproof refactoring, and AI-enhanced CI/CD pipelines. AI App Development: Smooth integration of third-party AI models (LLMs, vectors, embeddings) directly into your React or mobile interface. ⚡ SERVICES I OFFER Full-scale React MVP Development & Next.js SaaS setups Full Stack React & Node.js application scaling React Native mobile app interfaces & Hybrid App Development Highly interactive React Dashboard & Admin Panel systems Native API integrations & multi-tenant cloud architectures Looking for a world-class Full Stack Node.js React Developer | React Native Developer | Next.js Specialist who understands how to transform engineering code into real business growth? Let’s connect! Send me a message detailing your product goals, and let's craft a solid plan for your sprint. 🚀

🎯 I build things that actually work when real users show up. 🎯 12 years in coding, 9 years on Bubble io, 100+ projects shipped — SaaS platforms, AI-powered web apps, role-based systems, ecommerce builds, MVP launches, and everything in between. I know the platform well enough to know what it handles natively, when to bring in an API, and where most developers cut corners. On the AI side I integrate OpenAI directly into Bubble apps — chatbots, automated workflows, RAG pipelines that pull accurate answers from your own data, and AI agents that actually do something useful. I've also built complex automation stacks with n8n, Airtable, Zoho, and Twilio for lead capture, CRM routing, and workflow automation. I work in clear milestones, communicate without the fluff, and can usually get a working prototype in front of you fast — so you see progress before you commit to the full build. If you're looking for a Bubble developer who's done this hundreds of times and won't waste your time — let's talk. SEO: 🎯 I design and build AI-powered Bubble web applications, automation systems, and scalable bubble apps that help businesses launch faster and operate more efficiently. Expert bubble io developer with 9+ years of experience creating bubble io saas build platforms, bubble io marketplace solutions, internal tools, and bubble mvp projects. I specialize in combining no-code speed with real engineering thinking to deliver production-ready bubble no code systems using Bubble, AI models, and scalable backend logic. If you need an experienced bubble expert — you're in the right place. ✅ I have developed 100+ applications, from early-stage bubble prototype projects to complex bubble io web applications supporting real users, workflows, and business operations. 💡 What I build ⚡ End-to-end custom bubble app development (UI, backend logic, database, workflows) 🚀 Bubble mvp & rapid bubble prototypes for startups 📦 Bubble io saas build, bubble io marketplace, bubble io crm build, bubble io social network 🎨 Responsive bubble website creation with stunning UIs 🤖 Bubble ai features — GPT, Claude, Gemini, bubble ChatGPT integrations 🔗 Bubble api integrations (Stripe, Twilio, Meta, custom systems) ⚙️ Bubble plugins & automation via n8n, Zapier, Make 📈 Scalable bubble io development architectures optimized for growth ⚡ AI-driven development style My process is AI-enhanced — I use Lovable and modern AI tools to accelerate bubble io development and deliver bubble no code features faster. As a no-code developer and AI engineer, I integrate OpenAI GPT and Anthropic Claude directly into bubble apps for automation, smart workflows, and bubble ai-powered experiences. 🧠 🎓 Technical foundation 📌 Degree in Computer Science 📌 Master's in Software Engineering 📌 Strong background in JavaScript, Java, PHP, Angular, MySQL — including magento developer-level backend thinking This allows me as an experienced bubble io developer to handle complex logic, architecture decisions, and advanced bubble api integrations beyond standard no-code limitations. 🎯 How I deliver value ✔️ Build bubble io apps that are clean, structured, and scalable ✔️ Turn ideas into working bubble mvp projects quickly ✔️ Combine bubble ai + bubble no code for faster product execution ✔️ Performance tuning bubble and bubble io best practices on every project ✔️ Communicate clearly and work in a product-focused way 🌍 Experience working with international startups across the US, UK, and Europe on bubble io saas build, bubble ai tools, bubble io marketplace, and automation platforms. 💬 I help teams move from idea → bubble prototype → scalable bubble io web application using AI-first development and modern no-code engineering. 🏆 Bubble io Developer | Senior Bubble io Engineer | Bubble Expert | No-Code Developer | AI Engineer | AI Chatbot Developer | AI Automation Engineer | Full Stack Developer | Mobile App Developer | Bubble MVP Specialist | Magento Developer | No code developer

🥇 EXPERT-VETTED 🥇 With a decade of experience as a PHP Developer, Laravel Developer, WordPress Developer, and Full Stack Developer, I have successfully delivered 100+ projects with outstanding client feedback. I help businesses build scalable web applications, custom SaaS platforms, and high-performing WordPress solutions while staying ahead of emerging technologies. I take pride in 📈 developing scalable and high-performance Laravel applications, specializing in maintainable, secure code and seamless integrations. This dedication, verified by my long-standing freelance status, places me in the 🥇 top 1% of expert-vetted developers with more than ten thousand logged hours. Quantifiable Achievements: ⚡ Performance As a Laravel Developer and PHP Developer, database query and caching optimizations cut Laravel app load times by 50%. Using Redis, OPcache, and Eloquent query enhancements, doubled PHP web application speeds. Optimized Laravel API efficiency, resulting in a 60% decrease in API response times through rate-limiting and query enhancement. E-commerce platform optimization on Laravel led to checkout abandonment dropping by 35% and revenue climbing by 20%. 🛡️ Code Quality Reduced technical debt by 40% through codebase refactoring, boosting maintainability as Web Developer and Laravel Developer. Achieved 90% unit test coverage with PHPUnit and Pest, minimizing production errors. Automated CI/CD pipelines and testing reduced change failure rates to below 15%. ☁️ Infrastructure Serverless solutions and scalable cloud setups cut Laravel hosting expenses by 30%. Introduced failover and database replication, reducing server downtime by 60%. Via CI/CD, Laravel Forge, and Envoyer, increased deployments by 30% as Full Stack Developer and Laravel Developer. Core Competencies: 💻 Full Stack Development: Building custom Laravel apps, SaaS platforms, and backend systems using Laravel’s robust toolset as Laravel Developer, PHP Developer, and Full Stack Developer. 🔗 APIs: Design of RESTful APIs supporting scalable integrations with CRMs and payment gateways. 🎨 Frontend: Responsive interfaces via VueJS and ReactJS, focusing on progressive and single-page applications as Vue Developer. 🌐 Custom Platforms: Development covers CRM, management tools, healthcare platforms, and dashboards. Technical Proficiency: Laravel | PHP | REST API | SaaS | Multi-Tenancy | Laravel Livewire | Vue Developer | WordPress Developer 💾 MySQL/PostgreSQL/NoSQL 📜 Ajax, JavaScript (Vue.js, ReactJS), TypeScript, jQuery 📐 HTML, CSS, Bootstrap 🔍 Redis, Elasticsearch Specialised Offerings: 🤖 Automation & API Integration 🚀 Custom Laravel/React Solutions 💳 Payment Integration (Stripe) 🤖 ChatGPT & AI Integration 🏎️ High-performance Optimisation 🛍️ Shopify Customisation & Development 🚚 Delivery/Logistics Apps Industries Served: 🏢 SaaS & Multi-Tenant Solutions 🚚 Fleet & Logistics 🩺 Healthcare 💰 FinTech 🛒 Ecommerce From Laravel-powered backends to VueJS-powered frontends, I cover comprehensive development services. As a WordPress Developer, Vue Developer, Laravel Developer, and Web Developer, my solutions are built for scalability and durability. 🤝 Contact me for a consultation. Let’s discuss your requirements and set a solid development strategy. Updated: 16.06.2026

🔌 Powering 3.5M+ connected devices worldwide. My team delivers end-to-end IoT and AI-powered solutions — from firmware to cloud — for Smart Home, Automotive, Energy, and Healthcare industries. 📊 WHY CLIENTS CHOOSE US: • 3.5M+ IoT devices connected in production (Geeni smart home ecosystem) • 10+ years building IoT products, from PoC to mass production • 599+ hours on active firmware contract (Zephyr RTOS, Nordic, BLE) • AI-powered development: agentic pipelines, intelligent automation, ML integration for IoT • HIPAA-certified team for medical IoT projects • Top Rated Plus, 100% Job Success Score 🔧 WHAT WE BUILD: → Firmware Development: Zephyr RTOS, FreeRTOS, ESP32, STM32, NRF, ARM Cortex. SPI, UART, I2C, Modbus, GPIO → Wireless Connectivity: BLE 5.3, Matter, Thread, Zigbee, LoRa, MQTT, LTE-M, NB-IoT, WiFi → IoT Cloud Platforms: AWS IoT Core, Azure IoT Hub, Google Cloud IoT, Firebase, InfluxDB → AI & ML for IoT: predictive maintenance models, anomaly detection, sensor data pipelines, edge AI, agentic workflows → Mobile IoT Apps: React Native, Flutter, Swift, Kotlin — companion apps for connected devices → Security & Compliance: TLS, OAuth2, JWT, Secure Boot, OTA updates, HIPAA compliance 🤖 AI ENGINEERING: We integrate AI across the full IoT stack — from edge inference on embedded devices to cloud-based ML pipelines. Our team builds agentic AI systems, intelligent automation workflows, and enterprise-grade AI pipelines that go beyond simple chatbots into production-ready infrastructure. 🏗 INDUSTRIES WE SERVE: • Smart Home — built app ecosystem for 3M+ devices (smart bulbs, cameras, sensors, switches) • Automotive — OBD-II fleet management, connected car platforms, predictive maintenance • Energy — Smart Grid management, EV charging, HVAC telematics with cellular IoT • Healthcare IoT — ECG monitoring wearables, Remote Patient Monitoring (RPM), HIPAA-compliant platforms 👥 TEAM: I lead a dedicated team of 20+ engineers: embedded/firmware, AI/ML, mobile (iOS + Android), backend, QA, DevOps, and project management. We work as your extended engineering team — same timezone overlap, daily standups, transparent communication. 💬 MESSAGE ME with your IoT or AI project details — I'll respond with relevant case studies and a preliminary architecture within 24 hours.

Hey there! I’m Oleksandr, a Senior Full Stack Developer focused on building SaaS platforms, marketplaces, and business applications with React, Next.js, and Node.js. Most of my work is centered around products with complex workflows, payments, dashboards, role-based systems, and scalable backend architecture. I work closely with startups and growing teams to take products from early planning stages to stable production systems used by real customers. I’m comfortable handling both frontend and backend development, improving existing codebases, and building new features with long-term scalability in mind. Some of the platforms I’ve worked on include property management systems, booking marketplaces, operations dashboards, eCommerce platforms, and subscription-based products. 🚀 What I usually work on ✅ SaaS platforms and internal business systems ✅ Marketplace products with multi-role workflows ✅ Admin dashboards and operations tools ✅ Payments, subscriptions, and billing systems ✅ Booking and scheduling platforms ✅ API integrations and third-party services ✅ React Native companion apps ✅ Performance optimization and scaling ⚙️ Tech Stack Frontend: React, Next.js, TypeScript, Redux Backend: Node.js, Express.js, REST APIs Database: PostgreSQL, MongoDB Mobile: React Native, Firebase Infrastructure: Docker, AWS, CI/CD I care about writing maintainable code, keeping communication clear, and building products that are stable long-term, not just quick MVPs. I’m also comfortable joining existing teams, working inside mature codebases, and helping improve architecture and development workflows when needed. If you’re building a SaaS product, marketplace, or internal platform and need a developer who can take ownership of features from planning to production, feel free to reach out.

I build high-performance data extraction systems, web scraping infrastructure, and automation pipelines that transform raw data into structured, reliable datasets ready for reporting, analytics, and business decisions. My focus is on delivering production-grade data systems - not just scripts, but scalable solutions that run on a daily basis, handle edge cases, and integrate seamlessly into your workflows. I work with startups, agencies, and data-driven businesses that need reliable data collection, automation, and structured outputs at scale. 🔹 Data Extraction & Web Scraping I develop robust web scraping systems capable of handling complex, large-scale data extraction tasks: • Web scraping from dynamic websites (JavaScript, pagination, auth) • Data extraction from directories, marketplaces, SaaS platforms • Scraping at scale with anti-bot handling & optimization • Structured data parsing and normalization • Long-running scraping infrastructure My solutions are built to be stable, maintainable, and scalable, even with frequently changing websites. 🔹 API Integration & Data Automation I build API-driven automation workflows that connect multiple systems into one clean data flow: • REST API integration (JSON / XML) • API automation and data synchronization • Multi-source data aggregation • Scheduled data collection pipelines • Error handling, retries, logging 🔹 Data Pipelines & ETL Systems I design complete ETL pipelines (Extract → Transform → Load): • Data cleaning and transformation • Merging multiple data sources • Structuring datasets for analytics • Automated pipelines (daily / hourly execution) • Scalable data processing workflows 🔹 Automation Systems & Bots I build custom automation systems and bots that eliminate manual work: • Data collection and monitoring bots 🤖 • Web automation & browser bots • API-driven automation workflows • Reporting automation pipelines • Task scheduling and orchestration 🔹 Data Delivery & Outputs Your data - clean, structured, and ready to use: • Google Sheets automation 📊 • CSV / Excel exports • Databases (PostgreSQL, MySQL, SQLite) • Custom API endpoints • Reporting-ready datasets 🔹 AI & LLM Integration I integrate language models into automation workflows - not chatbots, but production pipelines that use LLMs for real work: • OpenAI API integration into data pipelines • RAG systems for document retrieval and Q&A over your own data • LLM-based classification, extraction, and enrichment • Intelligent processing layered on top of scraping/ETL 🔹 Working with US & EU clients - flexible data hosting I work with clients worldwide. For European clients who need it, we can host data within the EU 🇪🇺(Germany) and handle it in line with GDPR. 🛠 Core Technologies Python Scrapy, Selenium, Playwright, BeautifulSoup Pandas, NumPy REST APIs, JSON, XML PostgreSQL, MySQL, SQLite Automation & scheduling systems Git / GitHub 💡 How I Work I don’t just write code - I help design reliable data systems. Clients involve me in: • Architecture decisions • Data pipeline design • Automation strategy • Long-term scalability planning ✅ What You Get ✔️ Clean, structured dataset ready for reporting ✔️ Stable, automated pipeline (daily execution) ✔️ Scalable and maintainable system ✔️ Clear documentation & version-controlled code ✔️ Optional monitoring, logging & alerts 🔑 Keywords (Upwork SEO) Web Scraping, Data Extraction, Python Developer, Data Mining, Automation, API Integration, API Automation, ETL, Data Pipeline, Data Engineering, Scrapy, Selenium, Playwright, BeautifulSoup, Data Processing, Data Cleaning, Google Sheets API, CSV Automation, Database Integration, Web Automation, Bots, Data Collection 💬 If you need reliable data pipelines or web scraping systems - let’s talk.

Senior Python engineer building AI automation and backends that hold up in production — n8n, LLM agents, Django & FastAPI. 15+ years and 50+ live apps behind me · 100% Job Success · Top Rated · built to ship on time and scale past v1. - Python + Django MVPs from idea to launch in 2–4 weeks - n8n automation that scales past the prototype - AI agents that reason over your private data I prefer to understand the problem before writing code — so you don't pay to rebuild it when requirements shift. ━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━━ 1️⃣ AI Agents & RAG Claude / OpenAI agents over private docs, CRMs, and APIs. Tool-using agents, multi-step reasoning, and eval harnesses so you can trust the output. ↳ Claude · OpenAI · LangChain · LangGraph · Pydantic AI · MCP 2️⃣ n8n & Make Automation Production deployments, custom nodes, AI-enhanced workflows, and multi-system orchestration. ↳ 50+ workflows shipped — Telegram bots, Gmail/sales pipelines, CRM sync, IoT ingestion, scheduled jobs 3️⃣ API & CRM Integrations Airtable, Notion, HubSpot, Gmail, Stripe, Twilio, and custom REST/GraphQL. ↳ Webhook plumbing, data sync, internal CRMs, idempotent pipelines that don't double-fire 4️⃣ Python + Next.js Apps FastAPI / Django backends · Postgres / Supabase · Next.js frontends. ↳ Idea → shipped MVP in 2–4 weeks, with the architecture to grow into v2 ━━━━━━━━━━━━━━━━━━━━━━━ ✅ WHY CLIENTS WORK WITH ME ━━━━━━━━━━━━━━━━━━━━━━━ ◆ Architecture-first — we settle on the right approach before writing code, so requirements changes don't mean starting over. ◆ Proven track record — 15+ years, 50+ live apps, 100% Job Success, Top Rated. ◆ Reliable communication — fast replies, predictable delivery, clear status updates, no ghosting. ◆ Maintainable systems — code the next developer (or future-you) can extend without a rewrite. ━━━━━━━━━━━━━━━━━━━━━━━ 🧰 STACK ━━━━━━━━━━━━━━━━━━━━━━━ Languages — Python, TypeScript, JavaScript, SQL AI / LLMs — Claude, OpenAI, Gemini, LangChain, LangGraph, Pydantic AI, MCP, RAG, embeddings, vector DBs Backend — FastAPI, Django, Node.js, PostgreSQL, Redis, Supabase Frontend — Next.js, React, Tailwind, shadcn/ui Automation — n8n, Make, Zapier, Airtable, Notion, HubSpot Infra — Docker, GitHub Actions, AWS, Vercel ━━━━━━━━━━━━━━━━━━━━━━━ 📂 RECENT WORK ━━━━━━━━━━━━━━━━━━━━━━━ - AI agent over a private knowledge base — custom tool use + eval harness (Claude + LangChain + pgvector) - Sales pipeline automation — Gmail → AI summarization → Notion CRM with rolling per-contact context (n8n + Anthropic) - Tuya IoT energy ingestion — paginated API, signed requests, rate-limit handling (n8n + Postgres) - Proposal analytics system — custom funnel and dead-rate analysis across 900+ proposals (Python + Postgres) ━━━━━━━━━━━━━━━━━━━━━━━ 🎯 BEST FIT ━━━━━━━━━━━━━━━━━━━━━━━ Scoped projects (1–8 weeks) · part-time retainers (10–30 hrs/week) · AI MVP builds · or rescuing an automation that's outgrown its shape. Send me the problem and your constraints, and I'll come back with a concrete approach. I work best from specifics — let's build something that lasts.

👋 I'm a Full Stack Developer with 10+ years of experience as a Java and PHP software engineer. Over the past 9 years, I've also focused on frontend frameworks, working extensively with Spring, Laravel Yii Vue and React Prior to that, I gained valuable experience with CMS systems like Opencart and WordPress. 🚀 I've had the opportunity to collaborate with both small and large international teams (10+ members) and have developed expertise in project management tools such as Jira, Trello, and VCS. Additionally, I'm proficient in Linux systems and CI/CD processes. Throughout my career, I've worked on high-load systems, built server-side high-capacity applications, and developed complex multi-platform user interfaces.👍 💪 My technical Full Stack Developer skill set includes: ➜ Java Kotlin and PHP : 10+ years of experience with PHP ( Laravel Yii Symfony Zend ) and Java (Core/EE Vaadin Spring ) ➜ Frontend Frameworks: Experience with Vue.js React Nuxt.js Next.js Vuetify and Cordova specializing in creating responsive and usable interfaces. ➜ JavaScript and TypeScript: Strong skills in JavaScript and TypeScript to create dynamic and efficient applications. ➜ Backend Development: Experience with Node.js Express.js and AdonisJS to create scalable server-side solutions. ➜ Databases: Knowledge of MySQL PostgreSQL Redis MongoDB and others, optimizing database performance. ➜ API development and integration: Extensive experience in creating and integrating RESTful and GraphQL APIs, including third-party services such as Stripe and Twilio, etc. ➜ AI Integration: Hands-on experience integrating AI-based features. ➜ DevOps and tools: Proficient in Git, Docker, Jenkins, and Jira, ensuring CI/CD and project management runs smoothly. 📌 When you choose to work with me ( Experienced Full-Stack Developer ), you’re partnering with a developer who not only understands your goals but is also dedicated to delivering outstanding solutions. I place a strong emphasis on customer satisfaction, and my commitment to engineering excellence ensures that I create value at every stage of the project.🚀 🏆 Our experience in Full-Stack development : ✔️ 10+ years of experience in web and mobile Full Stack development ✔️ 250+ projects for startups, SaaS platforms E-commerce + Marketplace, Booking Platforms, MVPs, AI chatbots / AI solutions ✔️ 22,574+ hours worked on Upwork ✔️ 42+ countries we operate in providing top-notch web development solutions ✔️ AI & automation ready - experience with AI chatbots, OpenAI integrations, and content automation ✔️ From idea to launch - UI/UX design, frontend & backend development, QA, and post-launch support ✔️ Flexible and client-focused - personalized approach, clear communication, and full dedication to results 📌Full-Stack Development AI & Chatbot Development Expertise ( Full-Stack Developer ) 🔸 Extensive experience in building AI-powered solutions, including custom GPT-based chatbots, document analysis tools, and intelligent automation systems 🔸 Integration with OpenAI API (GPT-3.5/4) for chatbot creation, semantic search, text summarization, language translation, and prompt-driven workflows 🔸 LangChain & Prompt Engineering – building multi-step, context-aware interactions for advanced conversational agents 🔸 Real-world use cases: Legal & medical document parsing, customer support bots, smart assistants for booking/e-commerce platforms 🔸 Secure & scalable architecture – including role-based access control, user session management, and protected endpoints for AI services 🔸 Hybrid solutions – AI integrated into full-stack applications (React / Vue + Node.js / NestJS) with real-time data flow and third-party APIs (Twilio, Slack, Stripe, CRM systems) 🔸 Cloud-ready & optimized – deployed via AWS, Vercel, Supabase, with performance monitoring and cost-effective API usage strategies 🔸 100% rapid prototyping to production – from PoC to polished tools with clean UI/UX and user-centric flow 🔸 Continuous collaboration with product teams to refine AI logic and ensure high relevance and response quality 🔸 AI Tools I Use- Botpress / Lovable / Cursor Bolt.new / Deepgram / n8n / Make / Zapier 📌 Full-Stack Web & SaaS / E-commerce Development Expertise ( Full-Stack Developer ) 🔹 10+ years of hands-on experience in building scalable web & mobile applications 🔹 250+ completed projects - from MVP to production-ready SaaS platforms 🔹 Full product cycle: from idea validation and prototyping to launch and post-release support 🔹 Modern stack: Vue \ Nuxt, React \ Next.js Node.js JavaScript TypeScript, NestJS, Node js PostgreSQL, MongoDB, AWS, Supabase & more 🔹 AI Integration: OpenAI, LangChain, chatbot development, prompt engineering, GPT-based tools 🔹 Marketplace, E-commerce, Booking Platforms - tailored logic, secure payments, real-time updates 🔹 API Integrations: Stripe Slack Twilio OpenAI CRM systems, social media API 🔹 Efficient & secure architectures -clean code modular structure role-based access