class RangaswamyChalla:
def __init__(self):
self.name = "Rangaswamy Challa"
self.role = "AI Developer | Generative AI Engineer"
self.location = "Bangalore,Karnataka,India"
self.education = "Central University of Andhra Pradesh"
@property
def what_i_build(self):
return [
"🤖 RAG Pipelines & AI Chatbots",
"⚡ LLM APIs with FastAPI & Python",
"🧠 Multimodal AI Systems",
"🏗️ Scalable Backend AI Architectures",
"🔍 Vector Search Systems with FAISS",
]
@property
def currently(self):
return {
"building" : "Production-grade Generative AI systems",
"learning" : "Advanced LLM fine-tuning & multimodal AI",
"open_to" : "Freelance projects & Remote opportunities globally",
"reach_me" : "challarangaswami@gmail.com",
}
def __str__(self):
return "I build AI systems that go to production — not just demos."🎯 Available for Freelance Projects Globally
| Service | Tech Stack | Turnaround |
|---|---|---|
| 🤖 RAG Chatbot on your documents | Python, LangChain, FAISS, OpenAI | 3–7 days |
| ⚡ LLM REST API Backend | FastAPI, Python, Docker | 2–5 days |
| 🧠 Custom AI Assistant | GPT-4, LangChain, Streamlit | 5–10 days |
| 🔍 Vector Search System | FAISS, HuggingFace, Python | 2–4 days |
| 🏗️ AI Infrastructure Setup | FastAPI, AWS/GCP, Docker | 5–14 days |
📩 DM me on LinkedIn or email: challarangaswami@gmail.com
RAG SYSTEM ARCHITECTURE
┌─────────────┐ ┌──────────────┐ ┌─────────────────┐
│ Documents │───▶│ Chunking & │───▶│ Vector Store │
│ PDF/TXT/CSV │ │ Embeddings │ │ FAISS/Chroma │
└─────────────┘ └──────────────┘ └────────┬────────┘
│ Similarity
┌─────────────┐ ┌──────────────┐ ┌────────▼────────┐
│ User Query │───▶│ LLM + RAG │◀───│ Top-K Context │
│ via API │ │ LangChain │ │ Retrieved │
└─────────────┘ └──────┬───────┘ └─────────────────┘
│
┌──────▼───────┐
│ Response │
│ via FastAPI │
└──────────────┘
🔭 Building → Production RAG systems for real business use cases
🌱 Learning → LLM fine-tuning, multimodal AI, and agent frameworks
🤝 Open to → Freelance AI projects | Remote jobs | Collaborations
💡 Goal → Help 50 businesses automate with AI in 2025–2026
If you're building an AI product and need a developer who delivers production-ready systems, let's connect!
I specialize in RAG systems, LLM APIs, and Generative AI infrastructure.
⚡ I typically respond within 24 hours
"I don't just build AI demos — I build AI that works in production."