experienced developer to build an AI-powered writing checker for my online English course

Key Features Required:

Text input area where users can paste or write their text

AI-driven grammar, spelling, and vocabulary correction with clear suggestions

Underlining or highlighting of errors with hover tooltips explaining corrections

Ability to accept/reject suggested changes interactively

Explanation of grammar rules and vocabulary improvements

Optionally, estimate the user’s writing level (CEFR or band score)

Clean, intuitive, and responsive UI (web-based)

Integration with OpenAI APIs or other relevant AI services

Scalable and maintainable backend


About Me:
I run an English language course with thousands of students globally. This AI writing checker will be a key feature to help learners improve their writing skills effectively.

Please provide your relevant experience, project timeline, and budget estimates when applying.