Kumar A.

I specialize in building robust, production-ready software for startups and growing businesses. Whether you need a SaaS platform, AI integration, or a real-time chat application, I turn ideas into clean, maintainable, and scalable solutions. 💡 I excel at: Real-time applications — SSE, WebSocket, Redis Pub/Sub AI-powered assistants & chatbots — RAG pipelines, LLM integration Microservice architecture — RabbitMQ, PostgreSQL Full product development — From UI design to scalable backend systems 🛠️ Tech Stack: • Python (FastAPI, Flask) • Node.js • React.js / Next.js • PostgreSQL • MongoDB • Redis • Docker • LangChain • LlamaIndex • Pinecone • OAuth (Google, Microsoft) I've delivered AI-enhanced systems at Carbon6 and CloudDefense.AI, contributed to research at Carnegie Mellon University, and built open-source full-stack projects used by real users. 🤝 Clear communication and ownership are key to my work. If you're looking for a developer who’s hands-on, proactive, and committed to quality — let’s build something great together.