1. Basic knowledge of Geotechnical Engineering and Soil/Rock mechanics.2. Expert in AutoCAD design and drawing of engineer structures(2D & 3D).3. Knowledge about Geotechnical investigation, drilling methodolgy, borehole logging, rock recovery, calculations, RQD, etc.4. Soil & Rock Geotechnical sections and profiles, ERT profiling, SRT profiling.5. Expert in Microsoft office, use of Ms-Word, Ms-Excel, 2D-3D paint.6. Coordination on site & office.