mrxsierra | Sunil Sharma https://mrxsierra.github.io/ Engineering portfolio, technical writing, and machine learning articles by Sunil Sharma. en-us Tue, 18 Aug 2026 09:24:26 +0000 Paraxcel Document Toolkit https://mrxsierra.github.io/projects/paraxcel/ https://mrxsierra.github.io/projects/paraxcel/ High-performance DOCX-to-Excel document extraction suite featuring run-level formatting parser, Pydantic validation, and Tkinter desktop GUI. Tue, 18 Aug 2026 09:24:03 +0000 Examination Management System DB https://mrxsierra.github.io/projects/ems-db/ https://mrxsierra.github.io/projects/ems-db/ Production-grade multi-RDBMS academic examination platform with cross-engine parity across PostgreSQL, MySQL, and SQLite, Python automation, and Dockerized test workflows. Tue, 18 Aug 2026 09:24:03 +0000 GSTN Predictive Binary Classification https://mrxsierra.github.io/projects/gstn-pbc/ https://mrxsierra.github.io/projects/gstn-pbc/ National-level hackathon finalist machine learning pipeline analyzing 900,000+ real-world GST records with XGBoost, LightGBM, and SHAP explainability. Tue, 18 Aug 2026 09:24:03 +0000 Naukri Market Data Scraper https://mrxsierra.github.io/projects/naukri-webscraper/ https://mrxsierra.github.io/projects/naukri-webscraper/ Automated job market telemetry and data extraction pipeline using Selenium WebDriver, BeautifulSoup, and Pandas with comprehensive pytest test coverage. Tue, 18 Aug 2026 09:24:03 +0000 S3 Faker Mock Data Generator https://mrxsierra.github.io/projects/s3-faker/ https://mrxsierra.github.io/projects/s3-faker/ High-throughput synthetic dataset generator with native AWS S3 and LocalStack emulator support for zero-cost cloud testing pipelines. Tue, 18 Aug 2026 09:24:03 +0000 Real-Time Test Management Interface https://mrxsierra.github.io/projects/test-site/ https://mrxsierra.github.io/projects/test-site/ Dynamic client-side test management and examination taking interface featuring local storage session persistence, timer synchronization, and responsive UI. Tue, 18 Aug 2026 09:24:03 +0000 Beyond the Schema: A Practical Guide to Querying and Interacting with SQLite, MySQL, & PostgreSQL https://mrxsierra.github.io/blog/2025/05/07/beyond-the-schema-a-practical-guide-to-querying-and-interacting-with-sqlite-mysql-postgresql/ https://mrxsierra.github.io/blog/2025/05/07/beyond-the-schema-a-practical-guide-to-querying-and-interacting-with-sqlite-mysql-postgresql/ A practical guide to querying, CLI administration, Docker container networking, and auto-increment sequence resets across SQLite, MySQL, and PostgreSQL. Wed, 07 May 2025 12:00:00 +0000 Navigating the Nuances: A Developer's Guide to SQL Dialects (SQLite, MySQL, PostgreSQL) https://mrxsierra.github.io/blog/2025/05/07/navigating-the-nuances-a-developers-guide-to-sql-dialects-sqlite-mysql-postgresql/ https://mrxsierra.github.io/blog/2025/05/07/navigating-the-nuances-a-developers-guide-to-sql-dialects-sqlite-mysql-postgresql/ A comparative guide to SQL dialects (SQLite, MySQL, and PostgreSQL) covering schema definition, auto-increment keys, trigger procedures, and type systems. Wed, 07 May 2025 12:00:00 +0000