A decentralized crowdfunding platform that allows users to create, fund, and track campaigns transparently using Ethereum smart contracts. Built with Next.js and Tailwind CSS, leveraging Hardhat for testing and deployment.
An event-driven fan-out architecture using AWS CDK (TypeScript), comprising an SNS topic broadcasting to multiple SQS queues processed by Lambda functions. Includes filter-based routing and CI/CD-friendly deployment setup.
Implements dynamic redaction of PII (like email addresses) during S3 object retrieval using S3 Object Lambda and AWS Lambda, without modifying source objects. Deployed via AWS CDK with Python handler scripts.
A data pipeline and analytical dashboard for flight delay prediction using PySpark. Processed and analyzed large flight datasets to identify delay patterns across airports and airlines using Jupyter + Spark SQL.
A role-based news portal built with PHP and MySQL, supporting article creation, bookmarking, admin panel, and PDF export using mPDF. Features secure login for admins, authors, and general users.
A blockchain-powered voting system built with Solidity and Node.js that ensures secure, transparent, and tamper-proof elections. Simulates voter registration, candidate listing, and secure vote casting via smart contracts.