I use Claude Code to deliver 10X RESULTS in SHORT TIME I build PRODUCTION-READY PRODUCTS and ship them FAST using Claude Code — delivering AGENTIC WORKFLOWS and LLM-POWERED SYSTEMS IN DAYS, NOT WEEKS 👉 𝗪𝗛𝗬 𝗬𝗢𝗨 𝗦𝗛𝗢𝗨𝗟𝗗 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛 𝗠𝗘 ☑️ 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗔𝗜 & 𝗟𝗟𝗠 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴: Specialized in building autonomous AI agents, multi-agent systems, RAG pipelines, LangChain workflows, and LLM-powered applications that solve real business problems in production. ☑️ 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: I connect AI to your existing systems — CRMs, SaaS platforms, databases, and APIs — building automation pipelines that cut costs, reduce manual work, and scale with your business. ☑️ 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Experienced across Ethereum, Solana, and Web3 — delivering smart contracts, DeFi platforms, and dApps that are secure, auditable, and built to last. ☑️ 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗮𝘁 𝗦𝗰𝗮𝗹𝗲: I architect and ship end-to-end AI-powered products — from backend LLM pipelines to polished frontends — with clean code, proper testing, and production-grade infrastructure. 👉 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 𝗜 𝗢𝗙𝗙𝗘𝗥 𝗔𝗜 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 • Agentic AI & Multi-Agent System Development • RAG Pipeline & Vector Database Architecture • LLM Application Development (OpenAI, Claude, Gemini, open-source) • AI Chatbot & Virtual Assistant Development • AI Integration into SaaS Platforms & Business Workflows • Automation Engineering (n8n, LangGraph, CrewAI) 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 • Custom Software & Web Application Development • Mobile App Development • API Development & Orchestration • Telegram & WhatsApp Bot Development • DevOps, QA & Database Design 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 • Smart Contract Development (Solidity, Rust) • DeFi & dApp Development • NFT & Tokenization Platforms • Launchpad & Cryptocurrency Development • Wallet Integration & Web3 Infrastructure 👉 𝗙𝗥𝗢𝗡𝗧-𝗘𝗡𝗗 • 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: React.js, Next.js, Gatsby.js, Vue.js, Angular • 𝗨𝗜\𝗨𝗫 𝗧𝗼𝗼𝗹𝘀: HTML, CSS, Bootstrap, Tailwind CSS, Material-UI • 𝗦𝘁𝗮𝘁𝗲 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: Redux, Context API, Vuex 👉 𝗕𝗔𝗖𝗞-𝗘𝗡𝗗 • 𝗣𝘆𝘁𝗵𝗼𝗻 𝗘𝗰𝗼𝘀𝘆𝘀𝘁𝗲𝗺: Python, FastAPI, Django, Flask • 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗘𝗰𝗼𝘀𝘆𝘀𝘁𝗲𝗺: Node.js, Express, Nest.js • 𝗔𝗜 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: LangChain, LangGraph, LlamaIndex, CrewAI, AutoGen • 𝗩𝗲𝗰𝘁𝗼𝗿 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: Pinecone, Weaviate, ChromaDB, FAISS, pgvector • 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: MongoDB, PostgreSQL, MySQL 👉 𝗗𝗘𝗩𝗢𝗣𝗦 & 𝗖𝗟𝗢𝗨𝗗 • 𝐂𝐈/𝐂𝐃 𝐓𝐨𝐨𝐥𝐬: Jenkins, GitHub Actions, GitLab CI • 𝗖𝗹𝗼𝘂𝗱 𝗮𝗻𝗱 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁: AWS, Firebase, Azure, GCP, Docker, Kubernetes

🌟 𝗘𝗫𝗣𝗘𝗥𝗧 𝗙𝗨𝗟𝗟 𝗦𝗧𝗔𝗖𝗞 & 𝗔𝗜 𝗘𝗡𝗚𝗜𝗡𝗘𝗘𝗥 🌟 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 | 𝗔𝗜 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 | 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 | 𝗪𝗲𝗯 & 𝗔𝗣𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 I am a Full Stack and AI Engineer with 12+ years of experience. 18,800+ delivered hours 69+ completed projects 5.0 star client record 100% Job Success Score. I have delivered $670K+ in full stack projects covering SaaS platforms, ecommerce systems, automation workflows, AI products, admin dashboards, APIs, CRM systems, and production web applications. My core expertise spans AI Agent Development, AI App Development, and end-to-end AI Development combined with Full Stack Development, Full Stack Development, and scalable Backend Development. I build real-world Artificial Intelligence systems including AI bot, AI Chatbot, and Chatbot Development solutions using Machine Learning, Deep Learning, and Natural Language Processing. My work focuses on AI Integration, API Integration, and business-ready automation that drives Lead Generation and Sales. For MVPs and SaaS builds, I aim to ship usable production ready versions in days and weeks, not months. With the right scope, I can help ship a working SaaS V1 in 14 days instead of a long 6 week cycle. 🧠 𝗔𝗜 𝗔𝗚𝗘𝗡𝗧𝗦, 𝗔𝗜 𝗖𝗛𝗔𝗧𝗕𝗢𝗧𝗦 & 𝗔𝗜 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 AI Agent Development is a major pillar of my work. I design autonomous AI Agent Development systems, AI bot workflows, and AI Chatbot platforms powered by Artificial Intelligence, Machine Learning, Deep Learning, and Natural Language Processing. My AI Development stack heavily uses LangChain, OpenAI API, and advanced LLM Prompt Engineering to deliver reliable AI Chatbot and Chatbot Development systems. These AI App Development solutions support Lead Generation, Sales automation, and Marketing Automation. 🔗 𝗔𝗜 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗜𝗢𝗡, 𝗔𝗣𝗜 & 𝗔𝗨𝗧𝗢𝗠𝗔𝗧𝗜𝗢𝗡 I specialize in AI Integration and API Integration across modern platforms. I design secure API, API Development, and API Integration layers that connect AI systems to real business workflows. I build automation using n8n, Zapier, and Scripting & Automation to orchestrate AI Agent Development, AI Chatbot flows, Marketing Automation, Lead Generation, and Sales pipelines. API and API Integration are core to every system I deliver. 💻 𝗙𝗨𝗟𝗟 𝗦𝗧𝗔𝗖𝗞, 𝗙𝗥𝗢𝗡𝗧𝗘𝗡𝗗 & 𝗕𝗔𝗖𝗞𝗘𝗡𝗗 I deliver Full Stack Development and Full Stack Development using Python, JavaScript, TypeScript, Node.js, React, Next.js, FastAPI, and HTML5. My Backend Development and Backend Development work focuses on scalability, performance. On the FRONTEND and Frontend Development side, I work with Vue.js, Angular, React, Next.js, Nuxt.js, JavaScript, TypeScript, HTML, HTML5, CSS, Bootstrap, jQuery, and Tailwind to deliver modern Web Design and responsive Web Application experiences. ⚙️ 𝗕𝗔𝗖𝗞𝗘𝗡𝗗 𝗙𝗥𝗔𝗠𝗘𝗪𝗢𝗥𝗞𝗦 & 𝗗𝗔𝗧𝗔𝗕𝗔𝗦𝗘𝗦 My backend expertise includes Laravel, Symfony, CodeIgniter, Ruby on Rails, Nest.js, Express.js, PHP, Ruby, Node.js, and FastAPI for Web Development and Mobile App Development. I design data-driven systems using MySQL, MySQL Programming, PostgreSQL, and MongoDB, ensuring reliability for Web Application, Ecommerce Website Development, and AI App Development platforms. 📱 𝗪𝗘𝗕, 𝗠𝗢𝗕𝗜𝗟𝗘 & 𝗘𝗖𝗢𝗠𝗠𝗘𝗥𝗖𝗘 I build scalable Web Development and Web Application solutions, backend-driven Mobile App Development systems, and high-performance Ecommerce Website Development platforms with secure API Integration. 🚀 𝗗𝗘𝗩𝗢𝗣𝗦 & 𝗗𝗘𝗣𝗟𝗢𝗬𝗠𝗘𝗡𝗧 I apply DevOps and DevOps Engineering best practices using Git, Docker, Heroku, and Amazon Web Services to ensure reliable CI/CD, scalable infrastructure, and production stability. I also deliver WordPress solutions, including custom development, API Integration, and headless Web Development architectures. 🌟 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘 I have following skills: ✅ Proven expertise in AI Agent Development, AI App Development, and AI Development ✅ Strong background in Artificial Intelligence, Machine Learning, Deep Learning, and NLP ✅ End-to-end Full Stack Development and Full Stack Development ownership ✅ Advanced API Development, API Integration, and automation ✅ Reliable DevOps Engineering and cloud deployments ✅ Business-focused systems for Lead Generation, Sales, and Marketing Automation 𝗚𝘂𝗶𝗱𝗮𝗻𝗰𝗲 𝗜 𝗽𝗿𝗼𝘃𝗶𝗱𝗲: Whether you are planning a new Web Application, exploring AI Integration, or need advice on Full Stack Development strategy, I help you make the right technology decisions with confidence. WHAT CLIENTS SAY ⭐ "Excellent support and knowledge to achieve all the work." ⭐ "Quality and service is top level. 👌 He by far exceeded my expectations. I would only want him for my next project." ⭐ "It was an excellent experience working with Mohsin. Highly knowledgeable in OCR and preprocessing."

🎖 Top Rated | 50+ clients | 10+ years building production backend & AI systems You've started building with AI — and the cracks are showing. Hallucinations you can't explain, agents that go off-script, a RAG pipeline that retrieves the wrong context half the time. A demo that impressed everyone and then fell apart on real data. That's exactly where I come in. I build LLM-powered systems that survive production: AI agents, RAG pipelines, and automation built on the data infrastructure they depend on. I work deep in the LangChain/LangGraph ecosystem with Anthropic (Claude API), OpenAI, and open-source models, shipping real products and internal tools for clients in fintech, GovTech, real estate, and edtech. Recent work: • Contract-bidding SaaS for US government procurement — AI agents monitor procurement portals, score opportunities against millions of records, and draft bid responses, cutting manual research time by 80% • Academic integrity platform using LLMs and ML to analyze writing patterns across 50,000+ monthly submissions • Real estate intelligence platform — 60+ concurrent scrapers feeding AI parsing and enrichment pipelines into a multi-region PostgreSQL system Where I spend most of my time: • Designing agent workflows with LangGraph, Make/n8n, and custom orchestration • Building RAG systems that are actually reliable — chunking strategy, retrieval tuning, eval pipelines • Wiring LLMs into FastAPI/Django backends with proper async handling, streaming, and error recovery • Deploying on AWS with Docker/Kubernetes, keeping costs predictable and latency sane at scale The difference: my foundation is 10+ years of backend engineering - Python, FastAPI, Django, PostgreSQL, SQLAlchemy, Celery, Redis, web scraping at scale. I don't just prompt-engineer. Most AI projects fail at the data layer, not the model - I build both. I'm selective about projects. I work best when there's a real problem to solve and a client who wants to understand what they're building, not just receive a black box. If that sounds like you, send me a message with a couple of lines about what you're building.

Software Full Stack Developer with over 6 years of experience as a Full Stack engineer. I build MVPs, Backends, Full Stack apps, Data pipelines, AI integrations, Chatbots, CI/CD pipelines and infrastructure, custom CRM & ERPs, and other kinds of business software as a Full Stack Developer. As a Full Stack Developer, I have helped build different types of projects: 📌 QR codes generation SAAS, over 14 types of QRs (Full Stack delivery). 📌 FinTech debt collection SAAS. 📌 AI prediction for logistics. 📌 Restaurant QR code Menus and Management with POS integration (Full Stack build). 📌 FinTech credit scoring (Full Stack work). 📌 E-tendering with escrow (Full Stack development). 📌 Gen AI adoption for Business (Full Stack development & AI integrations). Tech Stack I use as a Full Stack Developer: 🚀 Frontend (Full Stack): JavaScript/TypeScript | Next.js, Angular. 🚀 Backend (Full Stack): Python | Django, DRF, FastAPI, PostgreSQL, MySQL, NoSQL, MongoDB. 🚀 Infrastructure: AWS (EC2, S3, RDS, Aurora, Lambda, EKS, ECR), GCP, DigitalOcean, Docker, Docker Compose, Kubernetes. 🚀 CI/CD: GitHub actions, GitLab workflows, Buildkite. (Full Stack coverage: Backend & Frontend + CI/CD) ✅ Hire me as your Full Stack Developer if you want to talk Tech in Business language. 📌 You want to set up a new project? As a Full Stack Developer, I will prepare the roadmap and propose the best Architecture and technology stack! 📌 You want to refactor your code? As a Full Stack Developer, I will execute a safe transition and make sure nothing is left behind! 📌 You have an ongoing project? As a Full Stack Developer, I will quickly fit in and support the team and Business goals! 📌 You are looking for one place to build your project? As a Full Stack Developer, I will take care of the Full Stack build end to end! 📌 You have Backend / Frontend covered? That's fine, I don't just work as a Full Stack Developer on the entire stack, but can also work on separate components of your project as part of your Full Stack team! 💪 More about my Full Stack Developer skills that will help us achieve the best result: ✅ Numpy/Pandas, Apache Spark, Apache Airflow ✅ Test Driven Development & Domain Driven Design (Full Stack approach) ✅ Django/Django Rest Framework (DRF), FastAPI, Flask, Celery, SQLAlchemy (Full Stack Backend) ✅ AWS, Docker, Kubernetes (Full Stack infrastructure) ✅ NoSQL, MongoDB, Redis, Elasticsearch (Full Stack data layer) ✅ MySQL, PostgreSQL, SQLite, Microsoft SQL, Alembic ✅ Events based systems ✅ AI Integrations ✅ API integrations, REST & RESTful API, Database, WEB development, API development, API integration Let's do it together as your Full Stack Developer!

Web Scraping Expert | Data Mining | Automation | Database Integration Are you looking for an expert to handle your web scraping and data mining needs? Look no further! With extensive experience in extracting and processing data swiftly and professionally, I ensure top - notch quality in all my projects. Services Offered: 1. Web Scraping: - Social Media - eCommerce - Real Estate - Business Directories - Email/Contact Extraction - Lead Generation - Cheap Flights - Job Boards - Trading - Automobile - Drop - shipping Product - Recipes Info - Drugs/Disease Details - Yellow Pages - Yelp 2. Data Extraction and Processing: - Text - HTML - CSV - JSON - XML - Excel - Images 3. Automation Tasks: - Filling Forms - Generating Accounts - Handling Multiple Profiles 4. Database Integration/Administration: - MySQL - MongoDB - PostgreSQL - SQLAlchemy 5. Server/Cloud Support and Deployment: - AWS - Linux - Windows - Scrapy Cloud/ZYTE Tools and Technologies: Famous libraries/packages of Python 2 (and 3+): - Scrapy (Fastest Framework for Scraping) - BeautifulSoup - Pandas - Jupyter Notebook - Requests - LXML - Selenium Webdriver - Playwright - ChromeDriver - Rotating Proxies - reCAPTCHA/hCaptcha Handling - HTML, CSS, JavaScript Other Tools: - Git - S3 Bucket - Bitbucket - Multilogin - AdsPower - GoLogin Why Work With Me? By leveraging advanced tools and methods, I can help you gather the accurate data you need to drive your business decisions. Let’s discuss how I can contribute to your project’s success. Contact Me Feel free to reach out to discuss your project requirements or any challenges you’re looking to solve. Let’s get started!

⭐️Top Rated Plus⭐️🖥️Website Development🖥️⭐️Custom Web Application⭐️📱Hybrid Mobile App📱⚛️ Native Mobile Apps ⚛️🔍AI ChatBot Development🔍⚛️ERP, CRM, PMS, HRMS Development🌐🐘Python Development🐘🌐Laravel Development🌐🚀 Node.JS Development🚀⚛️React.JS Frontend⚛️🅰️Next.JS Frontend🅰️🚀UI/UX Prototype/Mockup🚀🌐Logo & Branding🌐🖥️Figma UI/UX Design🖥️📱React Native📱AI Agent Development 🌐📡3rd Party APIs Integration📡🔍 MySQL, MariaDB, MongoDB 🔍 💳Payment Gateway Integration 💳📡Open AI ChatGPT & Others📡🌐Maintenance & Support🌐🌐Hosting Server Setup & Configuration🌐 ⭐️ My expertise in rapid prototyping, proof of concept development, and launching minimum valuable products can help you minimize costs and accelerate your time-to-market. ⭐️ Laravel, Node.JS, React.JS, Next.JS and Python are my forte when it comes to any custom website/web app design & development. ⭐️I'm proficient in Laravel, Node.JS, React.JS, Next.JS, React Native, Swift, Kotlin and Python etc. making me adept at crafting robust Back ends, Front end, Mobile Apps, Bots for any websites, web applications or Mobile apps. ⭐️ My skills extend to JavaScript, Tailwind, React.JS, Next.JS etc. for creating dynamic and engaging Front End User Interfaces and User Experiences. ⭐️ I have hands-on experience in integrating databases, including MySQL, MongoDB, and SQLite/SQL, ensuring data-driven functionality. ⭐️ I will discuss in details on needs, purpose and goals for the project. The more you share about your business and goals for a project, better my understanding and provide ultimate results. ⭐️ I always prioritize quality throughout the development lifecycle, incorporating rigorous QA and testing processes to deliver robust and reliable applications. 🏆 Accredited 'Top Rated' on Upwork 🏆 Top 3% of Performers on Upwork 🏆 100% Job Success Rate on Upwork ⭐ Seamless & Prompt Communication 🏆 Over $100K+ Earnings on Upwork 🏆 14+ Years working on Upwork 𝕎𝕙𝕒𝕥 𝕆𝕗𝕗𝕖𝕣 : ► 𝘿𝙞𝙨𝙘𝙪𝙨𝙨𝙞𝙤𝙣: I will discuss in details on needs, purpose and goals for the project. The more you share about your business and goals for a project, better my understanding and provide results. ► 𝙏𝙧𝙞𝙚𝙙-𝙖𝙣𝙙-𝙩𝙧𝙪𝙚 𝙞𝙙𝙚𝙖𝙨 𝙖𝙣𝙙 𝙥𝙧𝙤𝙘𝙚𝙙𝙪𝙧𝙚𝙨: I bring a wealth of proven concepts, methods, and techniques to enhance productivity and efficiency. This ensures faster turnaround and reduces re-work. ► 𝙌/𝘼 & 𝙏𝙚𝙨𝙩𝙞𝙣𝙜: I prioritize quality throughout the development lifecycle, incorporating rigorous QA and testing processes to deliver robust and reliable applications. 𝕎𝕙𝕪 ℍ𝕚𝕣𝕖 ? ► 𝙏𝙧𝙖𝙣𝙨𝙛𝙤𝙧𝙢 𝙮𝙤𝙪𝙧 𝙞𝙙𝙚𝙖 𝙞𝙣𝙩𝙤 𝙧𝙚𝙖𝙡𝙞𝙩𝙮: I excel in business analysis, selecting the right technology stack, and implementing proper development processes to bring your idea to life. ►𝙎𝙖𝙫𝙚 𝙩𝙞𝙢𝙚 𝙖𝙣𝙙 𝙢𝙤𝙣𝙚𝙮: My expertise in rapid prototyping, proof of concept development, and launching minimum valuable products can help you minimize costs and accelerate your time-to-market. ► 𝙈𝙖𝙧𝙠𝙚𝙩 𝙮𝙤𝙪𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩: With the right team and a well-defined software development cycle, I can assist you in effectively marketing your product to real customers. ►𝙍𝙚𝙙𝙪𝙘𝙚 𝙧𝙞𝙨𝙠𝙨 𝙖𝙣𝙙 𝙘𝙤𝙨𝙩𝙨: I ensure precise and technically feasible requirements, minimizing development risks and costs. ►𝘾𝙧𝙚𝙖𝙩𝙚 𝙧𝙤𝙗𝙪𝙨𝙩 𝙨𝙤𝙡𝙪𝙩𝙞𝙤𝙣𝙨: I can set up a robust environment, establish efficient and scalable infrastructure. T𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐬𝐭𝐚𝐜𝐤: 𝐆𝐫𝐚𝐩𝐡𝐢𝐜𝐬: Photoshop, Illustrator, Figma, XD 𝐅𝐫𝐨𝐧𝐭 𝐞𝐧𝐝: React.JS, Next.JS, JavaScript, TypeScript, Tailwind etc. 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩: Flutter, React Native, Swift & Kotlin 𝐁𝐚𝐜𝐤 𝐞𝐧𝐝: Node.JS, PHP, Laravel, CodeIgniter, Python 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞: MongoDB, MySQL, MariaDB Automation: Python, AI Bots, Fast API Myself, Rahul Deb Patra based at Kolkata, India, working on EST, IST & GMT timezones mainly. I'm a Sr. Full Stack Developer cum Project Manager having vast working experience of 15+ years with Web - Mobile - Automation Platforms, Web - Mobile UI/UX Designs, Responsive Web Designs, Web - Mobile Custom Development, Custom Web Development using JS Framework, Digital Marketing etc and also passed 3 years regular master's degree MCA from a reputed college & university in 2011 and since pass out doing the job but improving as well. I have already completed various kind of projects successfully & have a portfolio as well, showcased with live projects. Please take a look at our Portfolio to understand, if I'm not wrong. I love to work and passionate with my job. That's all to say for myself !!

🚀 Full-Stack AI Developer who helps founders and teams move past AI prototypes and ship production-ready AI agents, RAG assistants and chatbots inside real AI SaaS and MVP products. Top Rated, 100% Job Success, $200K+ earned across 86 projects. ⭐ PROVEN RESULTS One AI SaaS product I built now serves 10,000+ users. Lebenswerk.ai, a cross-platform AI life story app (Android, iOS, back end, Azure): shipped end to end, 5.0 stars, client called me "highly skilled across the full stack." MVP for a pay-per-message product, delivered as a true partner, 5.0 stars: "thinks outside the box like an actual partner." $200K+ earned building AI SaaS, MVPs and AI agents in Healthcare, Real Estate, Fintech and Marketplace. 🤖 WHAT I BUILD AI agents and agentic systems, AI chatbots and RAG assistants, plus automation and workflows that run in production, not in a demo. I wire AI into the product (WhatsApp, CRM, internal tools) and wrap it in a clean AI SaaS or MVP that holds up under real load. Recent work: an AI SaaS chatbot with AI agent workflows, and a MERN SaaS AI chatbot app. ⚒️ MY STACK Front end: React, Next.js, TypeScript, JavaScript, HTML5, plus Vue, Angular and PHP when needed. Back end: Node.js, Python, FastAPI, REST APIs, PostgreSQL, AWS and Azure. Mobile with React Native (Android, iOS). AI: AI agents, RAG pipelines, LLMs, OpenAI and Anthropic Claude API, LangChain, chatbots, Generative AI, NLP and Machine Learning. ✅ HOW WE START Let's start with a short call or a small first milestone, so you can see the fit before committing to the full build. Tell me what you are building and I'll be honest about the best way to ship it.

7+ Years of Experience | Top Rated Plus Most businesses don't struggle because of a lack of ideas—they struggle because their systems can't keep up. Slow development cycles, brittle architectures, disconnected tools, and the inability to utilize AI effectively often result in lost opportunities, operational inefficiencies, and increased costs. I help businesses build scalable backend systems and AI-powered applications that are designed for long-term growth. Over the past 7+ years, I have worked with startups, SaaS companies, agencies, and enterprise teams to design, develop, and maintain production-grade applications using Python and Django. As AI adoption accelerated, I expanded my expertise into Generative AI and LLM-powered systems, helping companies integrate intelligent capabilities into existing products and build AI-native applications from the ground up. I bring a unique combination of strong software engineering fundamentals and deep understanding of modern AI technologies. I can help you with: ================= • Building robust SaaS applications using Django and Django REST Framework • Designing scalable APIs using FastAPI and modern backend architectures • Developing secure, maintainable, and high-performance Python applications • Architecting multi-tenant SaaS platforms and enterprise systems • Database design, optimization, and performance tuning • Authentication, authorization, RBAC, JWT, OAuth, and SSO implementations • Background processing using Celery, Redis, and asynchronous task execution • Third-party integrations including payment gateways, CRMs, ERPs, and external services • Cloud deployment, CI/CD pipelines, monitoring, and infrastructure automation In addition to backend engineering, I specialize in integrating AI capabilities into real-world products. My AI expertise includes: ===================== • Building LLM-powered applications using OpenAI, Claude, Gemini, Llama, DeepSeek, Mistral, and Hugging Face • Designing Retrieval-Augmented Generation (RAG) systems with vector databases and semantic search • Developing AI copilots and domain-specific assistants • Building multi-agent systems using LangGraph, CrewAI, OpenAI Agents SDK, AutoGen, and PydanticAI • Implementing tool calling, structured outputs, and agent orchestration workflows • Developing document intelligence solutions involving OCR, extraction, classification, and validation • Creating conversational AI solutions for customer support, internal operations, and workflow automation • Integrating AI into existing SaaS platforms without disrupting current business processes Technology Stack =========== Backend & APIs Python, Django, Django REST Framework, FastAPI, Flask, Node.js AI & LLMs OpenAI, Claude, Gemini, Llama, DeepSeek, Mistral, Hugging Face, LangChain, LangGraph, CrewAI, OpenAI Agents SDK, AutoGen, PydanticAI, MCP RAG & Vector Databases Pinecone, Qdrant, Weaviate, Chroma, pgvector, Embeddings, Hybrid Search, Reranking Databases & Messaging PostgreSQL, MySQL, MongoDB, Redis, RabbitMQ Cloud & DevOps AWS, Docker, Kubernetes, GitHub Actions, CI/CD, Monitoring, Observability I focus on building solutions that are secure, scalable, maintainable, and production-ready. Whether it's a high-performance Django backend, an AI-powered SaaS platform, or an intelligent system powered by LLMs, my priority is delivering technology that creates measurable business value rather than experimental prototypes. If you're looking for an engineer who combines deep Python expertise with practical experience shipping AI systems into production, I'd be happy to help bring your vision to life.

I build web scrapers that don't get blocked and don't break. 🛡️ If you've watched your bot get banned within minutes of hitting a site behind Cloudflare, DataDome, or Akamai — or inherited a brittle Selenium script that dies the moment the site changes — that's the problem I solve. I build data extraction systems designed to run for months, not days. 🔧 WHAT I BUILD High-volume scraping systems for: • E-commerce pricing & product data • Real estate listings • Business directories & lead generation • Contact extraction 🎯 THE HARD TARGETS This is where most scrapers fail and mine don't: • JavaScript-heavy SPAs, dynamic content, and infinite scroll • Login-gated pages • Serious anti-bot protection — Cloudflare, DataDome, Akamai, PerimeterX, CAPTCHA solving Where it's faster and more stable, I skip the headless browser entirely and reverse-engineer the site's internal API. For ongoing collection, I build scheduled crawlers with proxy rotation, session management, and browser fingerprint handling baked in. 💡 WHY CLIENTS HIRE ME Most scrapers on Upwork work once — on the developer's machine, on a good day. Mine ship with: • Retries, error handling, and failure alerts • Monitoring and scheduling, deployed on AWS or Docker — no babysitting • Clean, structured output: JSON, CSV, straight into PostgreSQL, or via a FastAPI endpoint — not a folder of messy HTML You'll also always know where the project stands. I communicate in plain English, flag risks early, and deliver fast. ⚙️ TECH STACK Python • JavaScript/TypeScript • Playwright • Selenium • Puppeteer • Scrapy • BeautifulSoup • FastAPI • Celery • Redis • Docker • AWS (EC2, Lambda, S3) • GitHub Actions Need the output AI-ready? I deliver structured data formatted for LLM and RAG ingestion. 📩 SEND ME A SITE Even one that's blocked every scraper you've thrown at it. Send the URL and a sentence about what you need, and I'll tell you honestly whether it's feasible, how I'd approach it, and what it would take. keywords: python, scrapy, selenium, requests, beautifulsoup, lxml, web scraping, web crawling, automation, bots, scrapers, spiders, cloudflare, captcha, puppeteer, playwright, tutoring, real estate, e-commerce, lead gen, zillow, trulia, realtor, redfin, streeteasy, linkedin, airbnb, auction, tripadvisor, craigslist, sales navigator, ebay, amazon, google listings, pandas, discord, google maps, indeed, glassdoor, walmart, bestbuy, target, etsy, facebook, instagram, twitter, tiktok, builtwith, walmart, watch, captcha, incapsula, cloudflare, akamai, travel, yelp, yellowpages, booking, reviews, finance, crypto, reddit, hotel, motel, zyte, leads, cars, automotive, doctor, google search, API, rest API, pcpartpicker, truepeoplesearch, restaurants, insurance, g2, retailer, zapier, google sheets, fashion, behance, serp, excel, ec2, workspace, senior, expert, bot, spreadsheet, chatGPT, data mining,automobiles,overstock,wayfair,flipkart,rakuten,jd,aliexpress,newegg,homedepot,lowes,expedia,orbitz,hotwire,kayak,skyscanner,delta,americanairlines,doordash,apartments,rent,cars,autotrader,edmunds,tesla,ford,mercedesbenz,bmwusa,twitter,pinterest,quora,reddit,,crunchbase,angel,patreon,medium,soundcloud,crawler,shopify,product,membership,directory,clay,n8n,AI,supabase,apollo,airflow

Need a Claude/LLM integration, a quant trading system, or a financial data pipeline that survives contact with real data? I build Python backends that ship on time, ship with tests, and run in production — not scripts that break next week. Recent work: → Real-time market pattern detection for a US trading client — 125+ stock symbols, ClickHouse tick ingestion, live RSI and VWAP signal alerts via Pushover, pair trading backtests at Sharpe 2.38 and 66.7% win rate. Milestone delivered on time, signals confirmed in live production. → SEC EDGAR 10-K parser for Business Development Companies — multi-source Schedule of Investments extraction, 103 companies, $1,324,753K total reconciled to the audited Total Investments line, 58/58 tests passing, profile-driven architecture, Docker. What I build: → Claude/LLM integrations — Tool Use, prompt caching (51.8% hit rate in production), structured output, SSE streaming, FastAPI endpoints. Production-grade scope enforcement and cost control. → Quant & trading systems — Signal generation, multi-timeframe funnels (ADX, EMA, Bollinger, volume, ATR-based sizing), backtesting, exchange API integration (Binance, MT5), ClickHouse and SQLite tick storage, Telegram and Discord alerting. → Financial data engineering — SEC EDGAR filings, multi-source ETL across financial APIs (EODHD, Financial Modeling Prep), Pandas + PostgreSQL pipelines, idempotent ingestion with deduplication and audit logging. → ML & classification pipelines — fastText, scikit-learn, custom feature engineering, confidence calibration, FastAPI inference services with automated retrain workflows. → Backend services & bots — FastAPI with async REST, n8n workflow integration (cron + REST dispatch + status polling), Telegram and Discord bots, scheduled tasks, persistent state, error recovery. How I work: every project Dockerized, deployed on DigitalOcean (or your cloud), version-controlled, tested, documented. I respond within hours, ask scoping questions before quoting, and ship on time. If something breaks after delivery, I fix it. Bilingual EN/中文 native, Taiwan-based. Available 30+ hours per week. Comfortable with US morning hours.