Mahesh Pawar

1. Redesigned Instructor Dashboard with 10+ modules for an e-learning platform using React.js and Django REST Framework. 2. Built scalable Gradebook module serving 4,000+ students with real-time updates, comparison charts, and optimized search. 3. Resolved N+1 query bottlenecks across forums, labs, and course APIs, reducing DB queries by 90-98% and improving system reliability under concurrent load. 4. Enhanced Lab Quiz engine with negative marking and ODT import/export. 5. Built chunked video upload system supporting 500MB+ files with progress tracking and automatic processing. 6. Implemented async notification system using Celery with real-time progress tracking for bulk email delivery. 7. Deployed and maintained production infrastructure using Docker and Virtual Private Server.