--- description: Engineering portfolio of Sunil Sharma - Full-stack web applications, machine learning systems, database architectures, and automation tools. --- # Engineering Projects

Proof of Work & Case Studies

Projects RSS

A curated index of production software, machine learning competition pipelines, and developer-first data extraction tooling. Each project contains architecture breakdowns, technical rationales, and source repositories.

Machine Learning Database Architecture Cloud Emulation Web Automation Document Processing
## Featured Project Case Studies
Machine Learning National Finalist
Python / ML Pipeline

GSTN Predictive Binary Classification

National-level hackathon finalist project — interpretable gradient boosted ML pipeline analyzing 900,000+ real-world GST records with strict reproducibility.

Database Architecture Multi-RDBMS
SQL / Automation

Examination Management System DB

Modular, production-ready multi-RDBMS architecture (PostgreSQL, MySQL, SQLite) with Python automation, Dockerized environments, and CI pipeline validation.

Cloud Tooling AWS / S3
Data Generation

S3 Faker Mock Data Generator

High-throughput synthetic data generation suite with native AWS S3 and LocalStack integration for cloud testing pipelines.

Data Automation Parser Engine
Document ETL

Paraxcel Document Toolkit

High-performance document parsing engine for complex Docx-to-Excel extraction, tabular data normalization, and automated reporting.

Web Automation Selenium / BS4
Data Pipeline

Naukri Market Data Scraper

Automated Selenium & BeautifulSoup extraction engine for tech hiring telemetry, salary benchmarking, and role aggregation.

Web Application Interactive UI
Frontend App

Real-Time Test Management Interface

Responsive frontend application for live examination management, test scheduling, student authentication, and scoring.

## Architectural Principles

Interpretable ML Systems

Prioritizing feature explainability (SHAP, permutation importance) and strict data isolation to eliminate target leakage in production models.

Multi-RDBMS Parity

Enforcing strict relational integrity, trigger parity, and automated query validation across PostgreSQL, MySQL, and SQLite.

Zero-Spend Cloud Simulation

Leveraging containerized LocalStack emulation and automated Docker workflows to validate cloud storage logic locally.