I am an experienced Full-Stack Developer with 10+ years of hands-on experience building and delivering end-to-end, scalable web and mobile applications for startups and Fortune 500+ companies. I specialize in developing high-performance systems with strong foundations in scalability, security, and user experience. I am a highly skilled MERN Stack (MongoDB, Express.js, React.js, Node.js) developer with deep expertise in designing, developing, and deploying robust web applications. In addition to traditional full-stack development, I have strong experience building AI-powered and LLM-driven applications, integrating Large Language Models (LLMs) into production systems to enable intelligent automation, conversational interfaces, and data-driven decision-making. I have hands-on experience working with LLM APIs (OpenAI, Anthropic, Gemini) and implementing prompt engineering, structured outputs, function calling, embeddings, and vector search to build real-world AI solutions. I design and deploy Retrieval-Augmented Generation (RAG) pipelines using vector databases to deliver accurate, context-aware responses over private datasets. I also work with LLM orchestration frameworks to manage multi-step reasoning, tool usage, and memory. Key Skills MERN Stack (MongoDB, Express.js, React.js, Node.js) JavaScript (ES6+), TypeScript HTML5, CSS3, Sass RESTful & GraphQL APIs SQL & NoSQL Database Design Large Language Models (LLMs) Prompt Engineering & Prompt Optimization Retrieval-Augmented Generation (RAG) Embeddings & Semantic Search Vector Databases (Pinecone, FAISS, Weaviate, Chroma) LLM Function Calling & Tool Use AI Agents & Workflow Automation Model Evaluation, Guardrails & Cost Optimization Agile Methodologies (Scrum, Kanban) Version Control (Git, GitHub) Cloud Platforms (AWS, Google Cloud, Azure) Services Offered Full-Stack Web & Mobile Application Development LLM-powered Application Development AI Chatbots & Intelligent Assistants RAG Systems over Private Data (PDFs, Docs, DBs) AI Automation & Agent-based Workflows API Design & Integration (AI + Backend) Database Design, Optimization & Scaling Cloud Deployment, CI/CD & Infrastructure MVP Development for AI & SaaS Startups Expertise – Web, AI & LLM Applications LLM-based SaaS platforms Chatbots & conversational AI (customer support, sales, internal tools) AI copilots & knowledge assistants E-commerce personalization & recommendations Fintech dashboards with AI insights Real-time analytics & monitoring systems Document ingestion, search & summarization systems Progressive Web Apps (PWAs) What I Can Offer Production-ready LLM architectures Secure, scalable, and cost-efficient AI systems Clean, maintainable code with best practices Clear communication and business-aligned solutions Continuous optimization of model quality & latency