Building
agents
that work.
AI systems engineer designing and shipping autonomous workflows, multi-agent pipelines, and full-stack intelligent tooling — end to end, in production.
“Real problems. Real systems. Real constraints.”
AGENT v1.0.0
LAB 1 ACTIVE
Selected work
All projects →The Lab
Active experiments, ongoing research, and prototype systems in various stages of development.
SL-001
MahaRERA Negotiation Agent
Two-agent Gemini pipeline (Legal Analyzer + Negotiation Strategist) that identifies MahaRERA violations in builder sale agreements and generates tier-escalated legal letters with full workflow tracing.
Progress
85%
SL-004
Local RAG System
Fully local, privacy-first RAG: Streamlit UI + OpenSearch hybrid search (BM25 + kNN with RRF fusion) + Ollama for generation. Markitdown document conversion, header-aware Markdown chunking, and a citation-enforcing prompt — no cloud API calls anywhere.
Progress
70%
2
Active
0
Prototype
2
Building
Lab v1.0.0
Writing
All posts →About
Santanu
Kar.
Engineer · Explorer · Experimenter
Software engineer and AI systems designer. I build autonomous agents, design multi-step orchestration pipelines, and ship full-stack products from concept to deployment.
Santanu Labs is my open experimental studio. Everything here is real: real problems, real systems, real constraints.
Focus
RAG, AI Agents
Stack
Python · ADK · TS
Based
Pune, Maharashtra
Status
● Building
Timeline
Oct 2025
Started exploring the potential of AI in real-world applications
Dec 2025
Deep-dived into LLM fine-tuning and alignment
Mar 2026
Launched Santanu Labs as an open experimental entity
Now
Building the next generation of intelligent products
Let's build
something
extraordinary.
Open to collaborations, consulting, and conversations at the frontier of AI.