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Vinayak Sahu

AI Research Associate at Vidur Research, working on production RAG systems, LLM fine-tuning, and agentic workflows.

LinkedIn · Portfolio · Medium · The Vector Daily


About

  • Role: AI Research Associate @ Vidur Research
  • Education: B.Tech CSE, KIIT University (2023–2027)
  • Location: India
  • Focus: Production RAG systems, LLM fine-tuning, agentic workflows
  • Currently: Building financial intelligence systems with CRAG and RAGAS at scale

Experience

AI Research Associate — Vidur Research (Subsidiary of Dreamskrin) Oct 2025 – Present · Remote · India

  • Implemented a Corrective RAG (CRAG) pipeline with a retrieval evaluator and knowledge refinement layer, cutting hallucinations 30% across 50+ financial instruments
  • Added evidence gating and contradiction detection ahead of generation, reaching 95%+ temporal accuracy with full citation provenance
  • Built an autonomous financial research agent performing multi-step retrieval and source-grounded analysis
  • Integrated the RAGAS evaluation suite, driving 10–20% retrieval quality gains per iteration across 130+ LLM calls per analysis session
  • Reduced inference cost 25% through caching and batching

Projects

Project Description Results
PrepGraph RAG chatbot with hybrid BM25 + FAISS retrieval, semantic cache, and a query router that selects between Llama 8b and 70b based on query complexity ↓40% LLM calls · ↓25% latency · ↓30% inference cost
Command Copilot Fine-tuned Phi-2 (2.7B params) with LoRA to translate plain English into Linux commands, running fully offline via Ollama 85% command accuracy · ↓40% inference time
ChatGPT Memory From Scratch Three-layer conversational memory system (short-term dict, FAISS long-term store, LLM summarization) built without LangChain No external memory framework used
FinVector Research Embeds financial news with FinBERT and clusters the resulting vector space to detect market regime shifts Applied on NIFTY 50 · 768-dim vectors · regime transition matrices
Reel2Retail End-to-end CV + NLP pipeline: YOLOv8 detects clothing in video frames, CLIP embeds them, FAISS matches to a product catalog >75% match confidence threshold
The Vector Daily Automated AI newsletter pipeline — scrapes arXiv, Medium, and HuggingFace, summarizes with an LLM, and ships as HTML daily 100+ articles/day, live in production
SecuFlow SSH intrusion detection with LLM-based threat analysis, Telegram-based human approval, and automatic UFW blocking Real-time blocking with explainable threat reports

Tech Stack

LangChain LangGraph FAISS PyTorch LoRA/QLoRA FastAPI Docker Python


GitHub Activity

github-snake

Writing


Contact

LinkedIn · Portfolio · vinayak1672006@gmail.com

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