Mock Exam Website Development

I need a clean, fast website where visitors can sit for full-length mock exams aimed at professional certification and recruitment tests. The core idea is simple: users choose an exam, complete it under timed conditions, submit, and immediately see a scored report with correct answers and simple analytics.

Key things I want built:
• Exam catalogue page with search and filter so I can publish new mock tests whenever needed.
• Secure test-taking interface with single-question and all-at-once modes, countdown timer, autosave, and basic anti-cheat measures (no right-click, copy, or refresh abuse).
• Automatic scoring for objective questions and a manual override area for any descriptive items I might add later.
• Results dashboard that stores the user’s history and breaks down performance by section.
• Straightforward admin panel where I can upload questions in bulk (Excel/CSV), set time limits, shuffle order, and decide when explanations become visible.

I’m open on the tech stack as long as it is mainstream, well-documented, and mobile-friendly—think Laravel or Django on the back end and a lightweight front end framework such as React or Vue. Please let me know if you prefer something else; reliability is more important than any specific language.

Acceptance criteria:
1. A demo site running on your server that passes through one complete mock exam cycle—from selecting the test to downloading the scorecard.
2. Source code pushed to a shared repository with clear setup instructions.
3. Brief hand-off session (video or chat) so I can walk through the admin controls myself.

I’d like to get this online quickly, then iterate, so show me past projects of a similar nature and tell me how soon you can deliver a first working version.