"Your SaaS platform is 99% done." Real-time data doesn't work. API integrations fail under load. AI functionality was added but never connected to real data. Works for 10 users. Breaks at 1,000. The full-stack developer is gone. The pre-deployment audit says: start over. My Clients never tell this story. ⭐ Top Rated Plus ⭐ 100% Job Success ⭐ 92% client retention ⭐ 8 years in the game ⭐ 3M+ unique users in production ⭐ 200K+ monthly active users ⭐ 37+ AI-powered solutions I'm a full-stack developer specializing in SaaS platform development, Node.js, Python, and API integration. I build healthcare platforms, AI assistants, AI automation platforms, fintech systems, B2B SaaS applications, and enterprise integrations. Multi-tenant SaaS platforms, backend APIs, cloud infrastructure, and AI integrations using OpenAI API, Claude API, LangChain, and RAG architectures. Every SaaS platform I deliver is production-ready - scalable from day one, not rebuilt in six months. Here's how I prevent each of those: 🔴 "99% done" I define done as production-ready. A SaaS platform isn't finished until it's load-tested, edge cases are handled, and your team can maintain it. No surprises after handover. 📡 Real-time data I architect the real-time data layer from the start, not as an afterthought. WebSockets, event-driven systems, live dashboards that actually update when your data does. 🔌 API integrations I build every API integration with error handling, retry logic, rate limiting, and monitoring built in. When a third-party updates their endpoints, your SaaS platform keeps running. 🤖 AI functionality I connect AI to your actual business data, not a feature floating above your product. RAG systems, OpenAI API, Claude API, LangChain - embedded in the data layer where it creates real value. 📈 Scalability Every SaaS platform I build is designed for 10x your current load from day one. Multi-tenant architecture, database optimization, cloud infrastructure that grows without a rebuild. 👤 The full-stack developer disappears 92% of my clients return for the next project. Full documentation, knowledge transfer, and ongoing support are part of how I work. ✅ Pre-deployment — I deliver code that passes any audit. Architecture reviews, performance testing, and security checks are part of the build, not a last-minute discovery. What I build: 🏗️ SaaS Platforms Multi-tenant architecture, subscription management, role-based access control, B2B SaaS applications 🔌 API & Backend Development Node.js, NestJS, Python, FastAPI, REST API, GraphQL, microservices, API integration with third-party services 🤖 AI Integration RAG systems, AI agents, OpenAI API, Claude API, LangChain, LLM integration, AI-powered automation ☁️ Cloud Infrastructure AWS, Docker, Kubernetes, serverless, cost-effective high-performance architecture 📊 Data-Driven Dashboards Real-time analytics, financial reporting, BI migration, data visualization, Customer 360 🔄 Automation & Workflows WhatsApp Commerce platforms, n8n, Zapier, custom automation pipelines 🛡️ Enterprise Integrations CRM/ERP, Salesforce, HubSpot, healthcare platforms, fintech systems, Stripe ⚙️ Tech Stack: NestJS, FastAPI, React, Next.js, TypeScript · AWS, PostgreSQL, MongoDB, Redis What's the product? Tell me the outcome and I'll architect the path to get there. full-stack developer · full stack development · SaaS platform · SaaS developer · SaaS platform development · B2B SaaS · multi-tenant SaaS · multi-tenant architecture · AI SaaS · Node.js developer · Node.js backend · NestJS developer · Python developer · Python backend · FastAPI developer · React developer · Next.js developer · TypeScript developer · backend developer · backend development · API development · REST API · GraphQL API · API integration · webhook integration · payment integration · web application · web application development · scalable web application · SaaS application · SaaS MVP · cloud infrastructure · AWS · Docker · Kubernetes · serverless · microservices · AI integration · AI-powered SaaS · OpenAI API · Claude API · Anthropic · LangChain · RAG · AI agents · LLM integration · AI chatbot · automation · workflow automation · n8n · Zapier · data platform · real-time dashboard · data visualization · PostgreSQL · MongoDB · Redis · CRM integration · ERP integration · HubSpot · Salesforce · healthcare platform · fintech · IoT platform · long-term partnership · ongoing development · enterprise web development · full-stack engineer · software engineer · payment gateway · subscription management · role-based access control · multi-tenant · Claude Code · full-stack AI engineer · SaaS development company · backend development services

⚡ Your product needs AI that works in production, not a demo. I integrate LLMs, RAG systems, and AI pipelines into existing backends using Python, Django & FastAPI. Top Rated Plus | 100% JSS. If your team has built something solid and now needs AI to make it smarter, that is exactly the problem I solve. I am an AI Integration Engineer specializing in connecting large language models, retrieval-augmented generation systems, and computer vision pipelines into real, working products. Not experiments. Not prototypes. Systems that run in production, handle real users, and do not break. ━━━━━━━━━━━━━━━━━━━━━━ 🛠️ WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━ → LLM integrations using OpenAI, Gemini, and open-source models → RAG pipelines for document processing, knowledge retrieval & AI-driven search → AI chatbots and conversational systems for SaaS and healthcare products → Computer Vision systems for image classification, object detection & OCR → Backend APIs using FastAPI and Django with AI features embedded → AWS-based document processing pipelines (Textract, S3, Lambda) ━━━━━━━━━━━━━━━━━━━━━━ 🏆 PROOF FROM REAL WORK ━━━━━━━━━━━━━━━━━━━━━━ ✦ Built an LLM-powered chatbot for a healthcare app integrating OpenAI and Google Dialogflow on an AWS backend, running in production for real patients. ✦ Developed a Gemini 2.5 Pro video analysis pipeline for a fitness app, debugging the full chain from Supabase storage through Vertex AI to structured JSON output. ✦ Built a computer vision system from scratch to detect and process highlighted text using OpenCV and AWS Textract, handling edge cases the client had not anticipated. ✦ Maintaining a long-running Django system with custom AI model integrations, ongoing for over a year with a 5-star rating. ━━━━━━━━━━━━━━━━━━━━━━ ⚙️ HOW I WORK ━━━━━━━━━━━━━━━━━━━━━━ I do not disappear after delivery. My contracts run long because I communicate clearly, flag problems early, and treat your product like it matters — because it does. My clients consistently describe me as solution-oriented, reliable, and fast. ━━━━━━━━━━━━━━━━━━━━━━ 💻 TECH STACK ━━━━━━━━━━━━━━━━━━━━━━ Python · Django · FastAPI · LangChain · OpenAI API · Gemini · RAG · LLM · Computer Vision · OpenCV · AWS Textract · Amazon S3 · PyTorch · TensorFlow · NLP · Docker ━━━━━━━━━━━━━━━━━━━━━━ 🎯 WHO I WORK WITH ━━━━━━━━━━━━━━━━━━━━━━ Product teams and technical founders who have an existing system and need AI integrated properly. If you know what you want to build but need someone who can execute it cleanly, send me a message describing the integration and I will respond within a few hours with a clear direction.

𝗘𝘅𝗽𝗲𝗿𝘁 𝗶𝗻 𝗠𝗮𝗷𝗼𝗿 𝗦𝗼𝗰𝗶𝗮𝗹 𝗠𝗲𝗱𝗶𝗮 𝗔𝗣𝗜𝘀 e.g. 𝗙𝗮𝗰𝗲𝗯𝗼𝗼𝗸, 𝗠𝗲𝘁𝗮, 𝗜𝗻𝘀𝘁𝗮𝗴𝗿𝗮𝗺, 𝗚𝗼𝗼𝗴𝗹𝗲, 𝗧𝘄𝗶𝘁𝘁𝗲𝗿/𝗫, 𝗧𝗶𝗸𝗧𝗼𝗸, 𝗣𝗶𝗻𝘁𝗲𝗿𝗲𝘀𝘁. Senior Full Stack Developer with 8+ years building scalable, secure, and high-performance AI-integrated MVPs and SaaS solutions. I specialize in 𝗣𝗛𝗣, 𝗟𝗮𝗿𝗮𝘃𝗲𝗹, 𝗔𝗣𝗶 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀, and 𝗔𝗜 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻𝘀. 🏆 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 ✅ 100+ 5-Star Reviews | 2100+ Upwork Hours ✅ Trusted by 100+ Businesses | 10+ Years Experience 💎 100% Client Satisfaction 🔥 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿 💻 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • Laravel, Livewire, PHP, Jetstream, Inertia.js, Vue.js, Node.js, Express.js • FlutterFlow, Custom PHP CMS, WordPress Development 🔗 𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 & 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻𝘀 • Social Media APIs: Facebook, Instagram, Threads, Messenger, WhatsApp, YouTube, Twitter/X, LinkedIn, Pinterest, Reddit, Google Ads, Shopify, WooCommerce • AI Automations: OpenAI, ChatGPT, AI Model Integration • Marketing Automation: n8n, Make, Zapier • Payments: Stripe, PayPal, Lemon Squeezy, Polar • Email & SMS APIs: Twilio, SendGrid, Postmark, Mailgun, Mandrill, Mailchimp, ActiveCampaign ☁️ 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗖𝗹𝗼𝘂𝗱 • Docker, CI/CD (CircleCI, GitHub Actions, GitLab, Bitbucket) • AWS, DigitalOcean, Google Cloud, Nginx, Apache • Linux Server Administration • Laravel Forge 🗄️ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 & 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 • MySQL, PostgreSQL, MongoDB, Redis • Webhook, Server Events, Cron Jobs 🎨 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 & 𝗨𝗜/𝗨𝗫 • Livewire, Vue.js, React.js, Tailwind CSS, Bootstrap, jQuery • Modern, responsive, and pixel-perfect interfaces 🛒 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 • Shopify, WooCommerce, Payment Gateway Integrations 🌟 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 • Meta App Reviews / API Permission Approvals • Business Verification & Tech Provider Setup • Messenger & Instagram Chatbot Development • Facebook/Instagram Comment & Posting Automation • Data Scraping, Email/SMS Automation • SaaS Development & Scaling 💡 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 • Strong problem-solving & clean, scalable code • Proven track record: 100+ projects completed successfully • Transparent communication & fast delivery • Strategic partner, not just another developer 📩 Let’s talk about how I can help transform your web app into a reliable, automated, and scalable solution. 🔎 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 / 𝗦𝗸𝗶𝗹𝗹𝘀: Full Stack Development, Laravel Developer, Vue.js, Livewire, Node.js, Express.js, SaaS Developer, API Integrations, Social Media APIs, Facebook API, Meta API, Google API, Pinterest API, Instagram API, FFmpeg, AI Automations, Marketing Automation, DevOps, Docker, AWS, RESTful API, Facebook Graph API, Payment Gateway Integration, E-commerce, Web Scraping, Data Scraping, WordPress Plugin Development, Custom PHP, GitHub, GitLab, Bitbucket, CircleCI.

I build production AI agents and automation systems: multi-agent workflows (LangGraph), RAG, and voice AI that cut manual ops work by 60–95% for B2B teams. Top Rated Plus | 100% Job Success | $100K+ earned on Upwork | 2,600+ hours | CTO @ Techtics AI (ML engineers + PhDs behind every build) WHAT I BUILD 1. Multi-agent business automation (LangGraph, n8n, MCP): supervisor agents orchestrating specialized agents end to end. Example: procurement automation for an industrial equipment supplier, taking a raw email → RFQ → quote → purchase order → payment with 95% less processing time, on $100K–$500K orders. 2. RAG and knowledge assistants: semantic search, vector databases (Pinecone, ChromaDB), chatbots that answer from your own data. One system serves 3M+ users and cut inference costs 43x. 3. Voice AI agents: real-time, multilingual phone agents (LiveKit, Whisper) handling inbound and outbound calls. 80–90% of phone orders automated for a restaurant chain. 4. AI integration into existing operations: invoice → QuickBooks AP automation, AI recruitment pipelines (60% faster hiring), construction drawing/PDF data extraction, B2B lead-gen agents with researched, personalized outreach. 5. Full-stack product builds: Python/FastAPI, React/Next.js, PostgreSQL, AWS/Azure/GCP, from MVP to production SaaS. HOW WE WORK Discovery call, then a written scope priced on deliverables and outcomes, not billable hours. Daily async updates, Loom walkthroughs, weekly live demos. Full handover with team training and one month of post-launch support. STACK Agents: LangGraph, LangChain, n8n, MCP, multi-agent systems. LLMs: OpenAI, Claude, Llama. Backend: Python, FastAPI, Django, REST APIs. Frontend: React, Next.js. Data/RAG: Pinecone, ChromaDB, PostgreSQL, semantic search. Voice: LiveKit, Whisper, STT/TTS. Cloud: AWS, Azure, GCP. Industries served: industrial equipment and B2B supply, healthcare, fintech and accounting, e-commerce, construction, food service. Send me one sentence about the workflow you want automated and I'll reply with a concrete approach and a fixed quote within 24 hours.

🟢 100+ successful projects | Top Rated Plus | 10+ years of experience 🟢 I help businesses collect reliable data, automate workflows, integrate APIs, and build AI-powered systems that reduce manual work and turn messy processes into clean, scalable, production-ready solutions. I’m Sergii, Senior Automation & AI Engineer at DataOx. For 10+ years, we’ve helped startups, small businesses, and growing teams build custom data extraction systems, workflow automation tools, API integrations, backend platforms, data pipelines, and practical AI automation solutions. What I can help you with: • Web scraping & data extraction Custom scraping systems for websites, marketplaces, directories, eCommerce platforms, real estate platforms, job boards, online portals, social networks, and other public or structured data sources. • Data processing & data pipelines Cleaning, structuring, normalizing, transforming, and preparing data for reporting, analytics, dashboards, CRMs, databases, Google Sheets, Airtable, internal tools, or AI systems. • Workflow automation & browser automation Automation systems that replace repetitive manual work, connect tools, handle business logic, run scheduled processes, and reduce operational workload over time. • API integration & backend systems REST API integrations, third-party API connections, custom API development, backend logic, database workflows, admin panels, internal platforms, and scalable business systems. • AI automation & AI-powered tools AI agents, ChatGPT / OpenAI API integration, Claude, Gemini, AI-driven workflows, document processing, natural language interfaces, AI-generated reports, classification, extraction, and decision-making support systems. • Existing system improvement Bug fixing, refactoring, stabilization, performance improvements, error handling, documentation, feature enhancements, and long-term support for existing automation, scraping, backend, or AI systems. Typical projects we build: • Web scraping and data extraction platforms • Price monitoring and competitor monitoring tools • Lead generation and contact data collection systems • Workflow automation and process automation tools • API integrations between CRMs, databases, SaaS tools, and internal systems • AI-powered assistants, AI agents, and business automation tools • Document parsing, classification, and reporting systems • Data pipelines, ETL processes, and structured datasets • Dashboards, admin panels, and backend web applications • Google Sheets, Airtable, Telegram bot, and email automation workflows Why clients work with us: • Strong experience with similar projects • Clear understanding of technical requirements and business goals • Reliable communication and structured project delivery • Clean, maintainable, and scalable architecture • Strong problem-solving approach • Ability to handle changing requirements and real-world edge cases • Production-ready solutions with error handling and clear documentation • Long-term support after the first version is delivered Tech stack and tools: Python, Java, FastAPI, Django, Spring Boot, PostgreSQL, MySQL, MongoDB, REST APIs, Selenium, Playwright, Scrapy, BeautifulSoup, Pandas, ETL pipelines, cloud services, OpenAI API, ChatGPT, Claude, Gemini, Google Sheets API, Airtable API, CRM APIs, payment APIs, and custom backend systems. I work best with clients who need more than just a quick script. If you need an experienced developer or technical partner who can understand the goal, clarify the scope, build a reliable solution, and support it over time, I can help. Send me a message with your project details, data sources, tools, API requirements, or current workflow, and I’ll help you define the best technical approach.

I help businesses eliminate manual work with AI automation — n8n workflows, AI agents, and API integrations that run reliably in production. Top Rated, 100% Job Success. What's the most repetitive task in your business right now? Whatever your answer is — there's a very good chance I've already automated it for someone else. And built it to keep running long after I'm gone: error handling, real-data testing, full documentation. See for yourself ⬇️ ⚙️ WHAT I AUTOMATE ━━━━━━━━━━━━━━━ ▸ AI workflow automation & AI agents — n8n, custom Python automation, multi-step business logic ▸ AI integration — connect Claude, OpenAI, and LLM APIs into your existing tools and processes ▸ AI chatbot development — customer support, internal knowledge bots, RAG, website chatbots ▸ Data extraction & document automation — AI-powered PDF parsing, OCR, data entry automation ▸ Lead generation automation — AI SDR, lead enrichment, web scraping, CRM automation ▸ Social media automation — AI content generation, AI image generation, approval workflows ▸ Amazon automation — Seller Central / FBA inventory management, returns analysis, PPC ▸ API integration & custom integrations — webhooks, authentication, third-party API development 🛠 TOOLS & TECH STACK ━━━━━━━━━━━━━━━ n8n • Python • AI Agents • OpenAI API • GPT • Claude API • Claude Code • MCP • LLM • Prompt Engineering • Airtable • GoHighLevel • Supabase • PostgreSQL • REST API • Webhooks • Apify • Selenium • Google Sheets • Apps Script • ClickUp • Slack • Amazon SP-API • Amazon Ads API • Gmail • Google Drive • Veo • Seedance • Meta Graph API • LinkedIn API • Vercel • Railway • Google Cloud OAuth • pgvector • Caspio • METRC • JSON • Automation Testing • Error Handling 🏆 WHY CLIENTS HIRE ME ━━━━━━━━━━━━━━━ ✅ Top Rated on Upwork ✅ 100% Job Success Score ✅ 5.0 client feedback ✅ Upwork Skill Certification in Generative AI ✅ Fast communication, detail-oriented, business-focused 📋 MY PROCESS ━━━━━━━━━━━━━━━ 1️⃣ Understand the real business process — not just the tech 2️⃣ Map the workflow, data flow, and edge cases 3️⃣ Build clean automation with proper error handling and logging 4️⃣ Test with real production data 5️⃣ Document everything so your team can maintain it — full handover included 💬 Whether you need an AI automation expert, an n8n developer, a chatbot builder, or someone to automate a repetitive business process end to end — send me a short description of the process and the tools involved

I am a Top Rated Python and .NET Developer with 16,000+ hours on Upwork and extensive experience helping companies build reliable REST APIs, integrate AI services, and ship production-ready backend systems on AWS and Azure. If you need a Python or .NET developer who can handle AI integration (OpenAI, AWS Bedrock, Azure OpenAI, Gemini, or any LLM API), cloud automation, and REST API development without hand-holding or vague timelines, that is exactly what I deliver. What I can help you with: • Python backend services: FastAPI, Flask, REST API development • .NET and C# Web APIs using ASP.NET Core • AI integration: OpenAI, AWS Bedrock, Azure OpenAI, LLM APIs, and RAG pipelines • AWS: Lambda, S3, SQS, API Gateway, EC2, and serverless automation • Azure: Azure Functions, Azure OpenAI, cloud services, and background jobs • API integration and third-party system automation workflows • SQL Server, PostgreSQL, Redis: performance tuning and reliability • React-based admin panels when full-stack ownership is needed Clients usually hire me to: • Modernize legacy systems without breaking production • Diagnose and fix unstable APIs or backend issues • Build new backend features with clean architecture and solid validation • Add AI capabilities into existing applications in a practical, maintainable way • Improve deployment confidence, observability, and handover quality How I work: • Clear communication and fast response, so you always know where things stand • Practical planning with concrete next steps before writing a single line of code • Production-focused engineering with logging, error handling, testing, and maintainable code • Reliable delivery without unnecessary complexity If you have an existing codebase, I can quickly review the setup, identify the highest-priority issues, and propose the best path forward. If you are starting something new, I can help design and build it in a way that is clean, scalable, and easy to maintain long term. 16,000+ hours. 129 jobs. Let's build something that works.

Real automation eliminates entire roles of manual work. It connects your CRM to your outreach, your lead capture to your follow-up, your reporting to your decisions. It runs while you sleep and compounds over time. That is what I build. I design and deploy AI-powered automation systems for growth-focused businesses using n8n, Make, and Claude AI agents as the core stack. My clients stop losing leads between tools, stop paying people to do what systems should handle, and stop treating AI like a toy instead of infrastructure. What I actually build: - AI agents that qualify leads, book calls, and follow up across WhatsApp, SMS, and email without a human touching the workflow. - Voice automation using Vapi, Retell AI, and ElevenLabs for inbound and outbound call handling at scale. - CRM automation across HubSpot, GoHighLevel, Pipedrive, and Airtable synced end-to-end so no lead leaks. - RAG-powered knowledge base agents trained on your business that handle support, qualification, and internal ops. - Cold outreach automation using Apollo io, JustCall, and multi-channel sequences that run 3,000+ daily touches without adding headcount. - Document and finance workflows connecting Stripe, QuickBooks, and Xero with automated billing and reporting. I also work with Supabase, Notion, Google Sheets, Zapier, Python, and JavaScript for custom API integrations when no-code tools hit their ceiling. "Before I build anything, I map it." Most automation projects fail because someone skipped the architecture phase and went straight to building. I start every engagement with a workflow audit: what is currently manual, where does data break between tools, what would a 10x version of your operations look like. Only then do we build. If you are spending real money on tools that do not talk to each other, that is the problem I solve. Message me with your biggest operational bottleneck. I will tell you within 24 hours whether automation fixes it and what that would look like.

I build AI products that work after launch — not just in a demo. If you need an AI agent, document Q&A system, internal knowledge assistant, or LLM feature that can handle real users, real data, and production traffic, I build it end to end. Most AI projects fail after handoff — the demo works, production doesn't. I design systems to hold up under real traffic, real data, and real edge cases, then stay involved until they do. Projects I build most often: • AI agents that research leads, analyze documents, and complete multi-step internal workflows • RAG systems for company knowledge bases, SOP search, policy lookup, and document Q&A • LLM-powered SaaS features like chat assistants, copilots, summarization flows, and structured data extraction • Full-stack delivery with Next.js, Python or Node.js, APIs, Docker, and cloud deployment Tools include : LangChain, LlamaIndex, OpenAI, Claude, Pinecone, Weaviate, FastAPI, React.js, Node.js, Laravel, Next.js, and AWS. I've completed 236 Upwork contracts with $100K+ earned, 7,300+ logged hours, and a 100% Job Success Score. Clients bring me in when they need AI features built properly and kept stable after launch. How I usually deliver AI projects: 1. Define the exact workflow, success criteria, and failure cases before choosing models or frameworks 2. Build the retrieval, prompting, orchestration, and backend logic around the real data source 3. Test against edge cases, bad inputs, latency, and cost before launch 4. Deploy, monitor, and refine after real users start interacting with it. I build the full product around the AI workflow when needed — usually a Next.js frontend, Python or Node.js backend, API integrations, and cloud deployment. That means you get a working feature or product, not just model output in a notebook. My core work is AI product delivery. Full-stack engineering is how I get it into production. If you're planning an AI feature, internal knowledge assistant, document Q&A workflow, or multi-step agent system, send me the goal and the data source you're working with. I'll tell you the right build approach, likely risks, and a realistic scope before we start. Thanks, Talwinder Tags : AI agent developer RAG developer LLM app developer LangChain developer OpenAI developer GPT-4 developer chatbot developer AI chatbot knowledge base AI document Q&A system retrieval augmented generation LlamaIndex developer CrewAI developer multi-agent system AI automation developer Next.js AI developer Python AI developer FastAPI AI developer SaaS AI integration internal knowledge assistant Lovable Replit Claude

I shipped AI into production where it counts. DecoverAI raised $2M in seed funding after launch. Speakology is now used by Yale, Tulane, and 600+ schools. 100% Job Success. 8+ years. I respond within hours. I build full-stack products end to end. Python / FastAPI / Django on the back, React / Next.js on the front, AI and LLM integration native to the product using OpenAI, LangChain, and RAG. Not a bolt-on. Not a prototype. Production-grade, AWS-deployed, and built to stay. If you are building a SaaS product, an AI-powered web app, or need a full-stack engineer who takes full ownership from idea to deployment, that is exactly what I do. WHAT I BUILD: Full Stack Web Applications - React / Next.js / TypeScript frontend: dashboards, SaaS UIs, customer portals - Python FastAPI / Django backend: REST APIs, GraphQL, microservices - Multi-tenant SaaS platforms and MVPs built to scale - AWS: Lambda, EC2, S3, RDS, API Gateway AI and LLM Integration - RAG pipelines over documents, PDFs, knowledge bases, enterprise data - AI agents using LangChain: multi-step workflows, tool use, memory, decision logic - OpenAI API integration: chat, semantic search, classification, automation - Vector databases: Pinecone, pgvector, ChromaDB PROVEN PRODUCTION WORK: - DecoverAI: Python + React + RAG deployed in US law firms. Company raised $2M seed. - Speakology: React / Next.js + OpenAI voice. Yale, Tulane, 600+ schools, 12K students. - Water Advisor AI: AWS Lambda + Python. CCR parsing, lead scoring, email automation. - 8 more production apps in fintech, healthcare, e-commerce, and education. TECH STACK: Python / FastAPI / Django / Node.js / React / Next.js / TypeScript PostgreSQL / MongoDB / Redis / AWS / Docker / LangChain / OpenAI API / RAG Tell me what you are building. I respond within hours.