
Combining cutting-edge AI technologies like RAG models, LangChain, and Pinecone with modern web development to build intelligent, production-ready applications that transform businesses.
Building scalable web apps using React.js, Next.js, Node.js & FastAPI
Designing RESTful & GraphQL APIs with robust security and performance
Expert in MongoDB, PostgreSQL, Prisma, and Vector Databases
Developing intelligent assistants using LangChain, OpenAI, and Pinecone
Deploying and scaling apps using AWS, Docker & CI/CD pipelines
Architecting secure, high-performance, and maintainable systems
Available for freelance work & collaboration opportunities
I'm AR Sahak, a Full Stack Developer specializing in AI-powered web applications with expertise in Generative AI integration and intelligent chatbot development. With a degree from Jiangsu University of Science and Technology, China, I currently work at Bayshore Communication in Dhaka, Bangladesh, where I architect cutting-edge AI solutions for modern businesses.
I build production-ready applications using React.js and Next.js on the frontend, paired with Node.js, Express.js, and FastAPI on the backend. My expertise in AI includes developing RAG (Retrieval-Augmented Generation) models with LangChain and Pinecone for vector search, creating intelligent chatbots, and integrating OpenAI's GPT models to deliver context-aware, conversational AI experiences.
From database architecture (MongoDB, PostgreSQL, MySQL) to cloud deployment (AWS, Azure), I deliver end-to-end solutions that combine modern web development with advanced AI capabilities. Whether it's building AI chatbots from scratch, implementing RAG systems for knowledge retrieval, or creating generative AI applications, I transform complex requirements into scalable, high-performance products.
Mastering modern web development with React.js & Next.js, building robust APIs with Node.js & FastAPI, and integrating cutting-edge AI technologies like LangChain, Pinecone, and OpenAI to create intelligent, production-ready applications.
Cutting-Edge Projects Developed and optimized web applications with advanced features, utilizing modern technologies and frameworks to deliver exceptional user experiences and performance.