I have done multiple award winning projects for various competitions in the field of AI and Machine-Learning.
One was a complex real-time face-recognition system with real-time speech synthesis in 25 languages installed in a wearable device to help people with Alzheimer's remember the names and relations of people around them.
The other was a neural network trained on 540k+ faces and ages to be able to infer the chronological age of a person by looking at their face with state-of-the-art results in one data-set.