EnglishApp — Learning Platform Backend

A RESTful API backend for an English learning platform built with ASP.NET Core 8. Provides structured lesson content with a hierarchical curriculum model (Categories → Lessons → Contents), vocabulary flashcard decks, multiple-choice exercises with automatic grading, and full IELTS-style mock exams with scored results. Features AI-powered IELTS Writing Task 2 evaluation via OpenRouter (DeepSeek model) that scores against the four official IELTS criteria. Authentication supports JWT Bearer tokens, Google and Facebook OAuth 2.0, and OTP-based email verification. Media uploads are handled through Cloudinary.

Backend Developer