Hi, I’m a software engineer with over 9 years of experience building scalable, production-ready systems. Whether working independently or with startups and teams, I focus on delivering clean, reliable, and maintainable software. I can help you: • Build or fix React UIs without breaking functionality • Design fast, clean APIs (Django / FastAPI) • Turn messy codebases into maintainable systems • Integrate AI, automation, and third-party services reliably Why clients choose me: • I think in systems, not just features • Clean architecture, scalable code, solid documentation • Clear communication, no guesswork, no surprises I’ve built SaaS platforms, automation tools, and high-performance web apps. If you need someone who can deliver clean, reliable results, let’s talk.

I build AI-powered web applications, SaaS platforms, LLM tools, RAG systems, AI chatbots, dashboards, backend APIs, and full-stack products using Python, FastAPI, Django, React, Vue, TypeScript, PHP and cloud platforms. I’m a senior full-stack developer with 15+ years of experience, 90+ completed Upwork projects, $500K+ earned, 100% Job Success, and Top Rated Plus status. My recent Upwork work includes: - AI and microservices development for an enterprise software platform - GenAI chatbot development for employee benefits workflows - AI agent framework development - AI-driven code documentation and application mapping - NLP and OpenAI/GPT-powered full-stack applications - Python/Django backend development for fintech and logistics platforms - Long-term backend development for a production SaaS platform I can help you with: 1) AI application development - I build practical AI features inside real products, including AI chatbots, copilots, document Q&A, RAG workflows, AI agents, LLM-based automation, and OpenAI/Claude integrations. 2) Full-stack SaaS development - I can develop complete SaaS applications with login, user roles, dashboards, admin panels, backend APIs, database design, integrations, payment flows, and deployment. 3) Backend development - I work heavily with Python, FastAPI, Django, Flask, Node.js, PHP/Laravel, PostgreSQL, MySQL, MongoDB, Redis, REST APIs, third-party APIs, and cloud deployment. 4) Frontend development - I build clean, responsive, and user-friendly web interfaces using React, Next.js, Vue.js, TypeScript, JavaScript, Tailwind, and modern frontend practices. 5) Existing product development and improvement - If you already have a product, I can help add new features, fix backend/frontend issues, improve performance, integrate AI, clean up APIs, and support ongoing development. Tech stack: Python, FastAPI, Django, Flask, PHP, Laravel, React, Next.js, Vue.js, TypeScript, JavaScript, PostgreSQL, MySQL, MongoDB, Redis, OpenAI, Claude, LangChain, LlamaIndex, Pinecone, Qdrant, Docker, AWS, Azure, GCP, GitHub Actions, CI/CD. I’m a good fit if you need a reliable senior developer who can understand the product, write clean code, communicate clearly, and take ownership of development from idea to production. Typical projects I work on: - AI SaaS platforms - AI chatbots and copilots - RAG and document Q&A systems - AI agents and workflow automation - Full-stack web applications - SaaS MVP development - Backend API development - Python/Django/FastAPI applications - React/Vue dashboards - Fintech, logistics, healthcare, and business workflow platforms If you need someone who can build, improve, or maintain your AI or SaaS product, I can help you move it forward with clean and reliable development.

I build AI-powered SaaS platforms, automation systems, and full stack web apps that ship fast and scale reliably. With 10+ years of experience across Python, Node.js, React, and LangChain , I help startups launch and businesses grow without sacrificing architecture or quality. I build faster using modern AI-powered dev tools . delivering production-ready apps in significantly less time without compromising on code quality or architecture. Cursor · Lovable · Bolt.new · v0 by Vercel · Claude (Anthropic) GitHub Copilot · Windsurf · Replit Agent I focus on building scalable systems with strong architecture, clean performance, and AI-driven automation that delivers long-term business value. CORE SPECIALIZATIONS : ✅ AI & SaaS Systems AI-powered SaaS platforms using OpenAI (GPT-4/4o), Assistants API, and LLM-based workflows for automation, content generation, and intelligent product features. ✅ Automation & Data Systems Automation pipelines, web scraping systems, and data processing workflows using Python, Node.js, and async task queues for scalable business operations. ✅ Chatbots, AI Agents & Digital Twins Conversational AI systems and multi-agent architectures using OpenAI, Claude, and LangChain — from customer-facing chatbots and RAG-powered knowledge assistants to autonomous AI agents that plan, reason, and execute multi-step workflows. Digital twin implementations for simulating real-world systems, processes, and entities with live data synchronization and predictive modeling. ✅ Full Stack Web Development Modern web applications using React, Next.js, MERN stack, and Python-based backends with scalable API architecture and clean system design. ✅ Mobile Applications React Native apps with real-time features, API integration, push notifications, and AI-driven functionality for iOS and Android. ✅ Real-Time & Media Systems WebSockets, WebRTC, FFmpeg-based video processing, and real-time streaming applications for scalable communication and media platforms. ✅ Enterprise Systems Custom dashboards, CRMs, ERPs, marketplaces, and API integrations designed with scalable architecture and modular backend systems. ✅ Extensions & API Architecture Chrome extensions with automation features, REST & GraphQL APIs, microservices, and event-driven architecture for modern distributed systems. AI & AUTOMATION: AI-powered systems using OpenAI (GPT-4/4o, Assistants API, Vision, Whisper, TTS) for intelligent applications, automation workflows, and data-driven features. LangChain, LlamaIndex, AI Agents, OpenClaw , RAG pipelines, and prompt engineering for building context-aware AI systems. Vector databases like Pinecone, Weaviate, and ChromaDB for semantic search and knowledge-based AI applications. Web scraping & automation pipelines using Playwright, Puppeteer, Scrapy, BeautifulSoup, and Selenium for data extraction and process automation. Background processing & data workflows using Celery, Redis queues, and async task systems. Browser automation and headless workflows for large-scale data operations and business automation systems. FRONT-END: React.js, Next.js 14 (App Router, SSR, SSG, ISR), TypeScript, and modern JavaScript (ES6+) UI development using Tailwind CSS, Material UI, ShadCN, and Framer Motion for scalable SaaS interfaces. State & data management using Redux Toolkit, Zustand, React Query, SWR, and Context API. Real-time frontends using WebSockets, GraphQL clients, and PWA architecture. BACK-END: Python (FastAPI, Django, DRF, Flask) for scalable APIs and backend systems. Node.js (NestJS, Express, Fastify) for microservices, real-time APIs, and scalable backend architecture. Authentication systems using JWT, OAuth2, Auth0, Clerk, Supabase Auth, and Passport.js. API architecture including REST, GraphQL, gRPC, and WebSockets with microservices and event-driven systems. Background jobs, cron scheduling, event-driven workflows, and webhook-based integrations. REAL-TIME & MEDIA : WebRTC-based applications using LiveKit, Agora for real-time communication systems. Video processing pipelines using FFmpeg (transcoding, HLS/DASH streaming, media processing). Communication systems using Twilio (SMS, voice, video), Socket .io, and Server-Sent Events. DATABASES & INFRASTRUCTURE: Relational & NoSQL databases: PostgreSQL, MySQL, MongoDB, Redis, Supabase, Firebase, Elasticsearch. WHAT YOU GET: ✅ Production-ready, AI-optimized code ✅ Scalable architecture built for long-term growth ✅ Agile delivery , clear milestones & regular updates ✅ AI-first mindset: every system built to be intelligent & automation-ready ✅ Long-term support & maintenance, not just a one-time handoff Whether you're a startup building an AI-powered MVP or an established business automating workflows, scraping data at scale, or expanding to mobile , I deliver clean, intelligent, production-ready solutions built to grow with you. Send a message or invite me to your job , let's build something great.

𝗔𝗜 & 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗦𝗺𝗮𝗿𝘁, 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗗𝗶𝗴𝗶𝘁𝗮𝗹 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 I help startups, founders, and businesses turn ideas into powerful digital products — from AI-driven applications and automation systems to full-stack web platforms that scale. With strong expertise in Python, JavaScript, React, FastAPI, and modern AI technologies, I build solutions that are fast, reliable, and designed for real-world impact. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝗿𝗶𝗻𝗴 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁: ❇️ AI Voice & Chatbot Development As a specialised AI developer, I build full voice pipelines: Deepgram/Whisper → GPT-4/Claude → ElevenLabs. Expert in chatbot development and conversational business logic for WhatsApp, Telegram, and Web. I work as a dedicated chatbot developer integrating systems with ManyChat, Botpress, and OpenAI API. Modern chatbot development setups to act as a 24/7 sales engine and support lead. ❇️ AI Agent Architecture & Autonomous Workflows I am an AI developer who excels in AI Agent architecture using LangGraph and CrewAI. Multi-AI Agent systems for lead generation, deal tracking, and complex CRM automation. Autonomous AI Agent workflows connected to Slack, Shopify, and enterprise backends. Every AI Agent I build is designed to scale and optimise business processes without increasing headcount. ⚙️ LLM Engineering & Advanced RAG As a senior LLM Engineer, I solve the "hallucination problem" for modern enterprises. Advanced LLM pipelines designed with a focus on Vector Databases (Pinecone, Weaviate, Milvus). Custom fine-tuning, prompt engineering, and production-ready LLM infrastructure. 🛠️ FULL-STACK TECH STACK & DATA SCIENCE As an AI Developer: Python, FastAPI, Docker, AWS, Asyncio. As a Python Developer: LangChain, LlamaIndex, LangGraph, PyTorch. As a Web Developer: Frontend frameworks, responsive platforms, and API integration. As a Data Scientist: Advanced data processing, analytics pipelines, and model evaluation. TECH STACK ───────────────────────────────────── 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: Next.js, React, TypeScript, Tailwind, Redux, React Query, Vite, Angular, Three.js, WebGL, responsive UI 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Python (FastAPI, Django, Flask), Node.js, Express, NestJS, Java (Spring Boot), Go, WebSockets, REST, GraphQL, gRPC 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, MongoDB, Redis, Supabase, Firebase, DynamoDB, BigQuery, MySQL Cloud & DevOps: AWS (EC2, Lambda, S3, RDS, ECS), GCP, Docker, Kubernetes, GitHub Actions, Terraform, Vercel, Netlify, Nginx, VPS automation, monitoring (Sentry, Datadog) 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Stripe, PayPal, Twilio, SendGrid, Auth0, OAuth/SSO, GoHighLevel, HubSpot, Salesforce, WhatsApp Business API, webhooks 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Pytest, Jest, Playwright, Cypress 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗺𝗲: • Clean, maintainable code • Fast communication & reliable delivery • Long-term project mindset • Business-focused technical solutions • Available full-time (40–50 hrs/week) Whether you need an AI product, a custom SaaS platform, automation workflows, or a full-stack application, I’m ready to help you build it efficiently. 𝗦𝗲𝗻𝗱 𝗮𝗻 𝗶𝗻𝘃𝗶𝘁𝗲 𝗼𝗿 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 — 𝗹𝗲𝘁’𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗶𝗺𝗽𝗮𝗰𝘁𝗳𝘂𝗹.

I’m Waqar, a senior full-stack engineer who lives and breathes Node.js, Python, and React. Over 12 years I’ve shipped 70+ production apps and logged 3.8k Upwork hours, helping startups and enterprises launch fast, scalable products. Backend APIs & Microservices — Express/NestJS (Node) and FastAPI/Flask (Python) with PostgreSQL, MongoDB, Redis. Frontend — Modern React.js & Next.js UIs that load fast and feel smooth on every device. AI Integrations — GPT-4 chatbots, LLM workflows, and ML pipelines that add real intelligence. Cloud & DevOps — Docker, CI/CD, AWS & GCP—zero-downtime deployments, cost-optimized. I value clean architecture, thorough testing, and proactive communication across time zones. If you need a developer who can own the entire stack, infuse AI capabilities, and deliver on time—let’s talk.

Is your team wasting time on repetitive work, or you know that automation and AI are missing in your business? I design systems that eliminate manual work across your business so your team can focus on higher-impact, revenue-generating work. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 ▶︎ 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 Production-ready automations in 𝗻𝟴𝗻, 𝗠𝗮𝗸𝗲.𝗰𝗼𝗺, zapier and more, connecting CRMs, email, databases, payments, and internal tools. Clean logic, error-proofing, and built for scale. ▶︎ 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗔𝗜 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 Custom 𝗔𝗜 𝗮𝗴𝗲𝗻𝘁𝘀, chatbots, document processors, and lead qualification/generation flows using GPT-5, Claude Opus/Sonnet, Gemini 3, LLaMA 4, DeepSeek-R1, and others. ▶︎ 𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 & 𝗦𝗰𝗿𝗶𝗽𝘁𝗶𝗻𝗴 From REST APIs to webhooks and OAuth, I connect platforms that don’t natively talk to each other, with Python/Node.js where needed. ▶︎ 𝗖𝗥𝗠 & 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝗛𝘂𝗯𝗦𝗽𝗼𝘁 • 𝗦𝗮𝗹𝗲𝘀𝗳𝗼𝗿𝗰𝗲 • 𝗚𝗼𝗛𝗶𝗴𝗵𝗟𝗲𝘃𝗲𝗹 • 𝗣𝗶𝗽𝗲𝗱𝗿𝗶𝘃𝗲 • 𝗡𝗼𝘁𝗶𝗼𝗻 • 𝗔𝗶𝗿𝘁𝗮𝗯𝗹𝗲 • 𝗦𝘂𝗽𝗮𝗯𝗮𝘀𝗲 Clean data syncing, automated pipelines, dashboards, and reporting flows. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▶︎ 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: n8n • Make • Python 𝗔𝗜: GPT-5.1 • Claude Opus/Sonnet 4.5 • Gemini 3 Pro • LLaMA 4 • DeepSeek-R1 • Grok 𝗩𝗶𝘀𝗶𝗼𝗻/𝗠𝗲𝗱𝗶𝗮: Veo • GPT-Image • Sora • RunwayML • NeoBanana 𝗩𝗼𝗶𝗰𝗲: Vapi • Synthflow • Retell 𝗖𝗥𝗠: HubSpot • Salesforce • GHL • Pipedrive 𝗗𝗮𝘁𝗮: Supabase • PostgreSQL • pgvector • Airtable • Notion 𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀: Stripe • QuickBooks • Plaid • Square 𝗗𝗲𝘃: Python • Node.js • REST APIs • Webhooks • Twilio 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀: LangChain, LangGraph, MCP, RAG, Clawbot 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴: Playwright • Browser Use • Apify • FireCrawl ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▶︎ Why Clients Choose Me 🟢 High-level consulting, not just execution I help you understand the problem, choose the right architecture, and avoid expensive mistakes. 🟢 Strong engineering foundation I build systems that are maintainable, modular, and scalable, not fragile automations. 🟢 Ability to work across the stack From backend engineering to AI workflows and enterprise integrations. 🟢 Clear communication & reliability Fast responses, predictable delivery, and a problem-solving mindset. ▶︎ Let’s Build Something Scalable If you need a partner who can architect, develop, and deliver AI-powered automations, backend systems, or advanced data workflows, I’d be happy to discuss your project.

I’m a reliable Full Stack Developer with 8+ years of hands-on experience building high-performing web apps, SaaS platforms, and cross-platform solutions for businesses across the US, UK, and Europe. I’ve completed 7000+ hours here on Upwork, delivering consistent, high-quality results and long-term client relationships. I work full-time during US business hours (9AM–7PM EST/CST) and handle projects end-to-end - from concept to deployment and scaling. - Frontend: React, Next.js, Vue.js, Tailwind, Bootstrap - Backend: Node.js, Django, Flask, FastAPI, TypeScript, Python - Databases: PostgreSQL, MongoDB, MySQL, Supabase - DevOps & Cloud: Docker, GitHub Actions, AWS, GCP, Azure - AI & Automation: OpenAI, Langchain, custom GPT bots, AI chat assistants, Zapier, Rasa - Cross-Platform Apps: React Native, Flutter, Ionic - APIs & Integrations: REST, GraphQL, Firebase, Stripe, Twilio, SendGrid Recent Focus Areas: • Building AI-powered tools and GPT-integrated chatbots • Developing end-to-end SaaS platforms with real-time features • Delivering solutions in CRM, healthcare, real estate, edtech, and on-demand apps • Automating business processes using LLMs and APIs ✅ 9000+ Upwork hours - consistent, proven track record ✅ Clean, scalable, production-ready code ✅ Transparent communication & dependable delivery ✅ Fast turnarounds without compromising quality If you’re looking for someone who’s proactive, detail-oriented, and easy to work with, I’d love to help bring your next project to life.

I provide Python (Django, Flask, FastAPI), ML, AI, MERN and NodeJS based web and software development for startups, enterprises and individuals. I can help if you are looking for a reliable developer or technical partner to make your business work. For the last 6+ years, I have been providing the following services: ✅ Python/MERN development ✅ Backend Development & Real-Time Communication ✅ Web app development ✅ API development and integration ✅ POC and MVP development ✅ Cloud development Working worldwide I’ve mainly worked on following industries: 🔸 Software / AI SaaS 🔸 Healthcare 🔸 eCommerce or Retail 🔸 Fintech 🔸 Manufacturing 🔸 Real Estate 🔸 E-sport My main tech skills: ☑️ Python / NodeJS ☑️ Payment Integration (Stripe, Paypal, Authorize.net etc) ☑️ ML, AI, Deep learning ☑️ Django / Django REST ☑️ Flask / FastAPI / ExpressJS ☑️ ReactJS / NextJS / Tailwind / Bootstrap ☑️ PostgreSQL / MySQL / MongoDB ☑️ Celery / Redis ☑️ Docker / Serverless ☑️ Cloud (AWS, GCP, DigitalOcean, Heroku) Let's embark on this journey together and achieve great things. Let's meet and work together.

⭐⭐⭐⭐⭐""Great scraper, works perfectly, Mousaab responds fast and it very skilled. thanks”" Save Time and Focus on Growth 🚀 Let me handle your data Scraping and automation needs while you focus on scaling your business! As an experienced web scraper and Python Developer, I’ve scraped 750K+ records of data and worked with 100+ clients across freelancing platforms, delivering clean, accurate datasets that fuel smarter business decisions. 🔱 My Expertise Includes 🔱: - ▶️ Web Scraping & Data Extraction - ▶️Ai integration - ▶️ Data Mining & Analysis - ▶️Leads Scraping & Generation Tools I Use ⚒️: - 🟥 Python (including Selenium, Requests, Pandas, API) - 🟥 Microsoft Excel / Google Sheets 💡Highlighted Data Scraping Projects:💡 - ✅Searchfunder.com: web scraping 40K+ profiles, including Name, Type, Company, Location, and Description. - ✅Newegg.com: web scraping E-commerce data for smartwatches, such as Name, Price, Shipping Cost, Rating, and URLs. - ✅LinkedIn.com: data scraping 35K+ companies based on employee count. - ✅IMDb.com: web scraping detailed TV show 10K+ records (Title, Rating, Release Date, Genre, Duration, Country, Description, Poster, and Link) for a recommendation platform. - ✅Google Maps Scraper: Created a user-friendly tool to web scrape business data (Name, Type, Location, Images, Ratings, Description, Email, Phone) based on user-specified prompts. - ✅Reddit Scraper: Built an API-integrated tool to scrape posts, comments, and replies from specified subreddits. - ✅Google Leads Scraper: Designed a data collection tool that extract agent emails via Google searches and export results to CSV. - ✅Facebook Hashtag Scraper: Developed a tool to scrape posts associated with specific hashtags. As a web scraper, I save entrepreneurs valuable time and deliver high-quality data tailored to their unique needs. My tools are reliable, scalable, and built for precision. Message me today for a free consultation or a sample and Let’s collaborate and turn your vision into reality! 🤹‍♂️ Web Scraping | Data Extraction | Python Web Scraper | Web Crawler | Scraping Bot | Scrape Website | Data Mining | Automated Data Collection | Extract Website Data | Scrape Product Data Scrape LinkedIn | Scrape Google Maps | Scrape Real Estate Listings | Scrape Product Reviews | eCommerce Scraping | Scrape Amazon | Lead Generation | Price Monitoring | News Article Scraper | Job Listings Scraper

As a Senior Full-Stack and AI Engineer with 14+ years of experience, I specialize in designing and building scalable web applications, cloud platforms, AI-powered automation systems, and high-performance APIs. I have extensive experience developing enterprise SaaS platforms, CRM/ERP systems, fintech applications, and AI-driven automation solutions using modern technologies such as Python, Node.js, Golang, Java, .NET, Ruby on Rails, React.js, and Next.js. I also work extensively with AI and automation frameworks, building intelligent workflows and LLM-powered applications using tools like LangChain, LangGraph, HuggingFace models, and n8n automation pipelines. Core Technical Expertise AI & Automation LLM integrations (OpenAI, Claude, HuggingFace) LangChain & LangGraph AI workflows Automation pipelines using n8n AI-powered SaaS platforms and content automation systems AI chatbots and intelligent agents Backend Development Python (FastAPI, Flask, Django) Node.js (REST APIs & microservices) Golang microservices Java (Spring Boot) .NET / ASP.NET Core Ruby on Rails Frontend Development React.js and Next.js TypeScript and modern JavaScript frameworks Angular Responsive UI development using Tailwind and Bootstrap Mobile Development React Native cross-platform mobile applications Blockchain Development Solidity smart contracts Ethereum and Web3.js integrations NFT and decentralized applications Cloud & DevOps AWS, Azure, and Google Cloud Docker, CI/CD pipelines Scalable microservices architecture Why Clients Hire Me ✔ 14+ years of professional development experience ✔ Expertise across AI, cloud, full-stack, and blockchain technologies ✔ Proven track record building enterprise SaaS platforms and scalable systems ✔ Strong focus on clean architecture, performance, and maintainable code ✔ Clear communication and reliable project delivery If you are looking for a senior engineer who can build scalable applications, AI-powered solutions, or modern SaaS platforms, I would be happy to discuss your project. Let's connect and bring your idea to life. Thanks, Hitesh Kanwar