Indian Institute for Studies in Mathematics, is an organization conducting competitive math examination across India with yearly registrations of over 6000 students across India. I was responsible to design and develop a highly complex web application having multiple layers of complexity. Following are the components of the entire eco-system. 1. Company website. 2. E-commerce section for selling e-books and print books. 3. A direct students registration portal. 4. Registration and Management portal for partner schools 5. Registration and Management portal for partner representatives 6. A practice test system for students with Questions and Answers randomization of images based questions and answers. 7. Management portal for the organization to issue Admit cards, manage sales and customer request, schools, representatives, receipts and payments. 8. Administration control over the website as well as the e-commerce portal as well as controlling the dates of registration, issuing of registration cards, issuing the books, enabling and disabling the practice test exam system. 9. The main examination system that was enabled only on the day of examination. It was the most nerve wrecking part as it was used to conduct tests of over 5000 students at the same time. 10. Basic BI system for visualization of various data sets. 11. A computation system to compute and display the number of students attempting the exams, number of attempts, submitted the exam, cleared the exam, were absent for the exam, etc. Technology and Platforms used: 1. Front end: HTML5, CSS, Javascript, jQuery and Bootstrap 2. Back end: MySQL relational database server 3. Programming languages: PHP and Java 4. VPS hosting with Bigrock. 5. Load Balanced EC2 and RDS Instances for the main examination system.