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rajput-t/README.md 
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ML Engineer · AI Systems · Data Engineering

Building systems that think, retrieve, stream, and adapt.

⚡ About

I build end-to-end AI/ML systems — from raw data pipelines to production-ready inference APIs. My work spans classical ML, deep learning, NLP, multimodal models, RAG pipelines, and agentic AI. I care about the full stack: not just model accuracy, but experiment tracking, deployment, and explainability.

Based in Nashik, India · Open to ML/Data roles

🔧 Core Stack

ML & AI PyTorch TensorFlow/Keras scikit-learn HuggingFace Transformers CLIP BERT Mistral 7B Phi-3

MLOps & Infra MLflow FastAPI Docker Apache Kafka SQLite ChromaDB

RAG & Agents LangChain Ollama Google ADK Gemini Streamlit Gradio

Data Pandas NumPy Matplotlib Seaborn Plotly SQL

Cloud & Certs Microsoft Azure Oracle Cloud (OCI) Google Advanced Data Analytics

🚀 Featured Projects

🧠 Multimodal Sentiment Analyzer

BERT + CLIP gated fusion model trained on MVSA-Single. EDA revealed systematic image-label misalignment (53.3% agreement) — model correctly learned to down-weight the image branch. PyTorch BERT CLIP Gated Fusion Gradio · Macro F1: 0.7084

🏦 Finance RAG Assistant

Fully local RAG pipeline — 1,256 pages ingested into 8,568 chunks, retrieved via ChromaDB, answered by Mistral 7B running on-device. Zero API costs, source attribution on every response. LangChain ChromaDB Ollama Mistral 7B Streamlit · Zero inference cost

📈 Loan Default Prediction — MLOps

4 models tracked with MLflow, alias-based champion promotion, served via FastAPI REST endpoint. PR-AUC prioritized over AUC due to 7% class imbalance. MLflow GradientBoosting FastAPI Pydantic · AUC: 0.868 · PR-AUC: 0.397

📡 Real-Time Streaming Analytics

Kafka 4.2 (KRaft, no ZooKeeper) streaming GBM-simulated stock ticks at 5/sec. Z-score anomaly detection with rolling 20-tick window, live Plotly dashboard auto-refreshing every 2s. Apache Kafka Streamlit Plotly SQLite · 5 ticks/sec · 2.5σ threshold

🤖 E-Com Support Agent

Agentic AI assistant built with Google ADK and Gemini 2.5 Flash Lite. Tool-use for product lookup, order tracking, and localized return policies. Eval suite: tool trajectory accuracy 1.0. Google ADK Gemini Tool Use Vertex AI · Trajectory accuracy: 1.0

🔬 Currently Building

🧬 LLM Fine-Tuning · QLoRA · Text-to-SQL

github.com/rajput-t/llm-finetuning-text2sql (in progress)

Fine-tuning Phi-3 Mini (3.8B) on the Spider benchmark (7,000+ Text-to-SQL examples) using QLoRA — 4-bit quantization via bitsandbytes, LoRA adapters via PEFT, training on RTX 2070 Super (8GB VRAM).

Target: 78%+ execution accuracy, outperforming zero-shot baseline and benchmarking against GPT-3.5 zero-shot.

HuggingFace PEFT QLoRA bitsandbytes TRL SFTTrainer Spider

📂 Other Repositories

Repo Description
deep-learning-fundamentals ANN, CNN (CIFAR-10), LSTM — early DL experiments in Keras/TensorFlow
ML_algorithms Linear Regression, Decision Trees, Random Forests, KNN, K-Means, PCA
leetcode DSA problem solving — ongoing
certificates Google · Microsoft Azure · Oracle Cloud · BCG Forage

📊 Currently Learning

LLMOps          ████████░░░░  Fine-tuning → eval pipelines → deployment
Data Engineering ██████░░░░░░  Kafka → Spark → Airflow
System Design   █████░░░░░░░  Scaling ML systems for interviews
CV Fine-tuning  ████░░░░░░░░  Unfreeze CLIP, detection, segmentation

"Build systems, not demos."

Pinned Loading

  1. multimodal-sentiment-analyzer multimodal-sentiment-analyzer Public

    Multimodal sentiment analysis combining BERT (text) and CLIP (image) via gated fusion, trained on MVSA-Single. Includes EDA revealing systematic image-label misalignment, per-modality baselines, an…

    Python

  2. rag-finance-assistant rag-finance-assistant Public

    A fully local RAG pipeline for financial document Q&A — Mistral 7B via Ollama, LangChain, ChromaDB vector store, and all-MiniLM-L6-v2 embeddings. Zero API costs, source attribution on every answer,…

    Python

  3. realtime-streaming-analytics realtime-streaming-analytics Public

    Real-time stock market analytics pipeline — Kafka 4.2 (KRaft mode) streams GBM-simulated tick data for 5 equities, Z-score anomaly detection flags price spikes, and a live Streamlit + Plotly dashbo…

    Python

  4. E-Com_Support_Agent_googleADK E-Com_Support_Agent_googleADK Public

    E-commerce support agent built with Google ADK and Gemini 2.5 Flash Lite — handles product inquiries, order tracking, and localized return policies via structured tool calls, in-memory session mana…

    Python

  5. loan-default-mlops loan-default-mlops Public

    End-to-end MLOps pipeline for loan default prediction — 4 models tracked with MLflow, GradientBoosting champion at AUC 0.868 / PR-AUC 0.397 on 7% imbalanced data, alias-based model registry, and a …

    Jupyter Notebook

  6. credentials_and_courses credentials_and_courses Public

    A collection of professional certifications spanning data analytics, cloud platforms, and data science — including Google, Microsoft Azure, Oracle Cloud, and BCG Forage.