Chaitanya Punyapu

Backend Engineer | Python · Django · FastAPI · Microservices · AI/LLM Systems | Enterprise-Scale Async Backends · Hyderabad, Telangana, India

Hi, I'm Chaitanya 👋 Backend Developer with 3 years of experience building scalable SaaS platforms and high-performance backend systems using Python, FastAPI, and Django. I specialize in designing microservices architectures, asynchronous APIs, and production-grade systems that handle real-time workloads efficiently. I have hands-on experience integrating AI/LLM-based solutions into real-world applications, including Retrieval-Augmented Generation (RAG), semantic search, and conversational systems using OpenAI APIs and LLaMA (Groq Cloud). Currently, I’m working on enterprise-scale systems where I’ve built event-driven architectures, optimized API performance by 40%, and designed flexible data models using PostgreSQL (JSONB) to support complex workflows. Previously, I developed and scaled SaaS platforms serving 500+ users, built AI-powered assistants, integrated secure payment systems, and improved system efficiency by 30% through caching and query optimization. Core Skills: Python, FastAPI, Django, REST APIs, LLMs, RAG, PostgreSQL, Redis, Microservices, Async Processing, AWS, GCP, Docker, CI/CD I’m passionate about building scalable backend systems, solving complex engineering problems, and exploring AI-driven applications. Let’s connect and talk about backend engineering, distributed systems, or AI 🚀