I’m creating a focused questionbank app for people preparing for professional certification exams and need a developer who can take it from concept to a usable product. Core question engine • Must handle Multiple-choice, True or False, and Short answer items. • Every question carries three key bits of metadata: the category it belongs to, its difficulty level, and an explanation that appears after the user submits an answer. User flow Candidates should be able to browse or search questions by category, filter by difficulty, attempt them, view instant feedback with explanations, then move on—nothing fancy, just fast and clear. Monitor progress and weakness. Recall failed questions. Timed and untimed quiz sessions. Authoring & admin On the back end I want to add, edit, or bulk-import questions and their metadata easily. A simple web dashboard is fine as long as it keeps the database clean and lets me update content without touching code. Required deliverables 1. Working app (mobile and web) that meets the requirements above. 2. Admin interface for question management. 3. Deployment. Please outline the tech stack you’d like to use and any similar projects you’ve shipped.