Lakshmi Chakradhar Vijayarao

AI Engineer specializing in LLMs, RAG, & Multi-Agent Systems

About Me

AI Engineer specializing in Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), Reinforcement Learning (RL), and multi-agent systems. Experienced in building end-to-end production-grade AI pipelines, including LLM fine-tuning (LoRA/QLoRA), dense retrieval (FAISS/ChromaDB), hybrid RAG architectures, verification agents, GPU-optimized inference, and RL-based query optimization.

Skills & Expertise

Python
Java
JavaScript
C++
SQL
Git
Linux
PyTorch
TensorFlow
Scikit-Learn
Reinforcement Learning
Hugging Face Transformers
LoRA/QLoRA
RAG
LangChain
SentenceTransformers
BM25
PEFT
FAISS
ChromaDB
Hybrid Retrieval
PySpark
Airflow
AWS SageMaker
Docker
MLflow
CI/CD
FastAPI
Streamlit

Featured Projects

MedRAG – Clinical Retrieval-Augmented Assistant

LLMs
RAG
FAISS
FastAPI

Built clinical RAG system using dense + BM25 hybrid retrieval, improving terminology recall +31%. Reduced hallucinations 34% through evidence-grounded generation + multi-agent verification.

FinAgentX – Multi-Agent Financial Analytics System

LLM Agents
Tool Calling
Retrieval
Streamlit

Engineered multi-agent framework for market analysis, risk scoring, and regulatory retrieval. Implemented retrieval-aware routing with compressed FAISS, cutting latency –41%.

SafeRAG – Hallucination Detection & Verification Engine

AI Safety
Verification Agents
Grounding Metrics

Designed multi-stage hallucination detection pipeline with evidence alignment + attribution. Reduced unsupported claims –46% across clinical and financial datasets.

LoRA-ClinicalBERT – Medical LLM Domain Adaptation

LoRA
QLoRA
PEFT
Hugging Face

Fine-tuned LLaMA/Mistral models on PubMed + clinical discharge summaries. Increased ROUGE-L +19% while reducing compute cost 63% using QLoRA.

Certifications

  • Hugging Face Building and Fine-Tuning LLM
  • Microsoft Certified: AI & ML Engineer
  • AWS Certified Cloud Practitioner – AWS Academy

Get In Touch

I'm currently open to new opportunities and collaborations. Feel free to reach out if you have a project in mind, want to discuss AI, or just say hi!