Mayank G.

AI & Full Stack Developer, AI Automation | Next.js, Python | LLM & RAG

Need a production-ready AI system — RAG pipeline, LLM integration, or intelligent automation? I build full-stack AI applications with Python and Next.js that go live, not just demos. 6+ years, $50K+ earned on Upwork, Top Rated Plus. I sit at the intersection of AI engineering and full-stack development — which means I don't just wire up an API call and call it an AI product. I design the data pipeline, the retrieval layer, the LLM orchestration, and the frontend interface as a single cohesive system. Most clients come to me after a previous developer delivered a fragile prototype. I deliver production systems. My core stack: Python, FastAPI, LangChain, RAG, LLM fine-tuning, Next.js, React, Node.js, PostgreSQL, MongoDB, AWS, Azure. Here is what I build: Full-Stack Apps — Next.js + React frontends connected to AI-powered backends AI Agents — WhatsApp bots, voice agents, inbound/outbound call agents, customer support automation RAG Systems — document Q&A, PDF + SQL retrieval, enterprise knowledge bases LLM Integrations — OpenAI, Anthropic, fine-tuning, prompt engineering, model evaluation Backend APIs — FastAPI, REST, GraphQL, scalable Python microservices AI Data Pipelines — ETL, scraping, clustering, vector search, resume parsing Automations — n8n, Zapier-style workflows, social media automation Proofs Top Rated Plus on Upwork (top 3% of talent) 100% Job Success Score Zapier Certified Expert | Make, n8n, Airtable integrations Built an internal RAG chatbot at CION Investments — reduced document lookup time by ~60% Built a voice booking platform at Yoderlay — cut booking time by ~40% Delivered AI solutions across fintech, HR tech, hospitality, e-commerce, and recruitment Send me a message describing your project. I respond within a few hours and can usually share a technical approach or a relevant portfolio example the same day. EXPERTISE: AI Automation | No-Code Development | Airtable | Zapier | Make | n8n | AI Agents | ChatGPT Integration | LLM Implementation | Workflow Automation | API Integration | Database Design | Digital Workers | Business Process Automation