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Subrat-2003/README.md

Hi, I'm Subrat πŸ‘‹

Data Analyst Β· AI/ML Engineer Β· Data Scientist Β· Business analyst

I build data systems that are honest about their limits and useful in production.

LinkedIn GitHub HuggingFace


🧠 What I Build

I work at the intersection of data engineering, machine learning, and business intelligence β€” turning messy, large-scale datasets into systems that stakeholders can actually trust.

  • πŸ—οΈ Data pipelines that handle the dirty work β€” malformed HTML, schema drift, 60GB+ of raw filings
  • πŸ“Š Dashboards and KPI systems built for non-technical consumers, not just engineers
  • πŸ€– ML pipelines where integrity matters more than headline accuracy
  • πŸ”„ Automated retraining workflows that stay accurate without manual intervention

πŸš€ Featured Projects

Architected a Polars-based out-of-core pipeline for 60GB+ SEC EDGAR filings on commodity hardware β†’ Corporate insolvency prediction 12 months ahead

Medallion architecture (Bronze β†’ Silver β†’ Gold) | Polars Lazy Evaluation | FinBERT MD&A sentiment | XGBoost production model

  • 4.5Γ— lift over the 8.4% baseline crash rate
  • XGBoost: 87% recall, 38% precision, F1 0.52 | 1,786 false positives vs LSTM's 24,652
  • Feature Order Lock prevents silent prediction drift at inference time
  • πŸ”΄ Live Demo β€” HuggingFace Spaces

Polars Parquet FinBERT XGBoost SHAP DuckDB Streamlit BeautifulSoup


Stochastic financial runway modeling for gig economy income volatility

Full-stack forecasting platform | Hybrid stacking ensemble | Nightly automated retraining

  • XGBoost (0.6) + Random Forest (0.4) ensemble generating bounded planning ranges from rolling forecast-error variance
  • SHA-256 fingerprinting for immutable data lineage across retraining cycles
  • Sub-200ms query response via Supabase SECURITY DEFINER views
  • πŸ”΄ Live Demo β€” Vercel

FastAPI XGBoost Next.js 14 TypeScript Supabase PostgreSQL GitHub Actions


I reduced model accuracy from 98% to 88% β€” and that was the win.

Found a data leakage flaw (pre-split oversampling β†’ synthetic duplicates bleeding into test set). Rebuilt from scratch.

  • 11 classifiers Γ— 100 randomised partitions β†’ macro F1 0.81, rejected-class F1 0.71 on leakage-proof holdout
  • CatBoost selected for consistency, not peak score
  • Feature importance: Credit History ~24%, Loan Amount ~19%, Applicant Income ~18%

Scikit-Learn CatBoost XGBoost imbalanced-learn Pandas Seaborn


πŸ” Veri-Vigil AI β€” ET GenAI Hackathon 2026

Browser-based content trust analyzer | ET GenAI Hackathon Semi-Finalist

Chrome Extension (Manifest V3) that analyses YouTube video metadata and generates a trust score + explanation using LLaMA 3.1 via Groq API.

FastAPI LLaMA 3.1 Groq Chrome Extension Manifest V3


πŸ› οΈ Tech Stack

Languages & Querying

Python MS SQL Server PostgreSQL

ML & Data Engineering

XGBoost Scikit-Learn Polars Pandas HuggingFace

Visualization & BI

Power BI Tableau Streamlit Excel

Infrastructure & DevOps

FastAPI GitHub Actions Supabase Next.js


πŸ“Š GitHub Stats

Top Languages

GitHub Streak

github-snake

πŸ† Highlights

  • 🎯 OJEE 2023 β€” Top 5% Merit rank (800 / 16,000+ candidates)
  • πŸ₯ˆ ET GenAI Hackathon 2026 β€” Semi-Finalist | Built Veri-Vigil AI in 48 hours
  • πŸ… Trithon 2023 β€” Cash Prize winner for problem-solving and technical collaboration
  • πŸ“„ RAECC-2025 National Conference β€” Presented research on E-Waste upcycling into Biodegradable 3D Printing Filaments
  • πŸŽ“ B.Tech CSE (AI) β€” GIFT Autonomous, Bhubaneswar | Graduating in June 2026

πŸ“¬ Let's Connect

I'm actively looking for Data Analyst, AI/ML Engineer, and Business Intelligence roles β€” available full-time from June 2026, open to relocation.

Email LinkedIn


"The model that admits its flaws is the one you can trust in production."

Pinned Loading

  1. Diwali-Sales-Inventory-Strategist Diwali-Sales-Inventory-Strategist Public

    An Exploratory Data Analysis (EDA) project using Python to uncover consumer purchasing patterns during the Diwali festival, focusing on demographics, geography, and product performance to drive bus…

    Jupyter Notebook

  2. Loan-Approval-Prediction-ML Loan-Approval-Prediction-ML Public

    A Finance ML project focusing on semantic preprocessing and logical data interpretation to predict loan eligibility.

    Jupyter Notebook

  3. Medical-Insurance-Premium-Estimator Medical-Insurance-Premium-Estimator Public

    A machine learning project to predict medical insurance costs based on individual health and demographic factors using Python and XGBoost.

    Jupyter Notebook

  4. Cashflow-Forecasting-and-Risk-Simulation-for-Freelancers Cashflow-Forecasting-and-Risk-Simulation-for-Freelancers Public

    AI-powered cashflow forecasting and stochastic risk simulation engine for freelancers. Built with FastAPI, Next.js, Facebook Prophet, and Monte Carlo simulations.

    TypeScript

  5. Financial-distress-early-warning-system Financial-distress-early-warning-system Public

    Machine learning pipeline and data engineering for financial distress detection using SEC EDGAR filings (Bronze/Silver/Gold).

    Jupyter Notebook

  6. SQL-advent-calendar-solutions SQL-advent-calendar-solutions Public