AI Code Training Platform

AI Code Training Platform is an interactive demonstration built for a Backend Software Engineer – AI Trainer role at DataAnnotation. It showcases five integrated capabilities: a Challenge Designer for authoring well-structured coding problems (constraints, I/O examples, hidden test cases) with a live preview panel and an 8-problem pre-seeded library spanning Easy to Expert difficulty; a Language Showcase presenting 5 classic algorithms (Binary Search, LRU Cache, Graph BFS, Quicksort, Fibonacci) each implemented in JavaScript, TypeScript, Python, Go, and Java with inline syntax highlighting and time/space complexity badges; a Code Evaluator that ingests a pasted solution, runs it against 5 test cases, surfaces categorized issues (Critical/Warning/Info) with line references, and reports code quality metrics including cyclomatic complexity and naming conventions; a Feedback Studio for reviewing AI-generated code submissions across four scored dimensions (Correctness, Efficiency, Clarity, Robustness) with free-form feedback and submission workflow; and an Analytics Dashboard with KPI cards, Canvas-rendered charts (language distribution, difficulty donut, 12-week quality trend, category bars), activity feed, contributor leaderboard, and per-category data quality breakdown table.