I have a lot of hand on experience related to Matlab coding in the following domains:
1. DCOM medical image processing and analysis.
2. CAD tools for medical image analysis.
3. Digital signal processing such as digital filters.
4. Speech and audio processing.
5. Digital image processing such as segmentation, noise reduction, filters.
6. Simulation of any mathematical model or set of equations in Matlab.
7. Physics simulation in Matlab. 
If there is any other work related to coding in Matlab, I will try my best to help you.