Tracks

Structured paths from fundamentals to expert. Start anywhere — every solve counts toward your level.

AI Engineering & LLMs

Most in demand

Implement the internals of modern language models from scratch — attention, sampling, tokenisation, embeddings, retrieval, fine-tuning maths and evaluation. The skills behind every AI engineer job posting.

0/147

Machine Learning

Classic ML, implemented by hand until it is second nature.

0/118

Deep Learning

Backprop, optimisers and layers without the framework magic.

0/116

Data Science & Statistics

Turn messy data into decisions people trust.

0/113

SQL & Analytics

The most requested data skill on the planet.

0/122

Python Foundations

Idiomatic, fast, interview-ready Python.

0/121

Algorithms & Data Structures

Pass the technical interview with confidence.

0/129