I'm a Dr. in Science and Technology of Navigation with maximum vote.
I have more specialization:
1) Integrated system of navigation: ECDIS;GPS, GNSS, GLONAS, LORAN, LORAN C, GMDSS, GIS ELECTRONIC AND CLASSIC NAVIGATION CHARTS.
2) Ship and Boat construction and project
I'm i advance user of MATLAB, ARGIS, AUTOCAD, 3DS.