AI learning platform
IUK English: AI‑assisted certification
English courses tailored to each person, with spoken AI practice and automatic feedback.
- 3Weeks to production
- 5 daysFor a month's worth of workBilled by the hour
- 100+Active studentsContinuous assessment
- 8Official coursesIELTS, TOEFL, NCLEX, MET
The challenge
Each person needed a course built around their own goal:
A truck driver in the United States facing a traffic inspection without speaking English.
Someone who wants to learn to pray the Mass in English, with the right pronunciation.
A nurse with a date to take the NCLEX exam.
What I built
Live voice conversation
Everyone practices situations from their own world, with immediate feedback.
Pronunciation diagnosis
It analyzes intonation, rhythm and vocabulary against the official rubrics.
Answers with sources
In NCLEX, the assistant answers from review books and cites where each answer comes from.
Guided cases and progress
Step-by-step clinical cases and a dashboard showing each student's improvement.
Controlled cost
I tested and compared voice and AI models and services, and let the system pick the cheapest one that does the job, with a fallback if one fails.
How a student learns on Business English Pro
Swipe to see the full diagram
The result
- A month's worth of work, delivered in 5 days. Since the client pays by the hour, every hour saved is money not spent.
- In production at week 3 and in continuous development since then.
- Running 19 courses with more than 150 students.
- Unlimited practice, and the teaching staff is freed up for tutoring.
Technologies (for your technical team)
- Next.js
- FastAPI
- WebRTC / Audio
- LangGraph
- PostgreSQL
- RAG