Drainage Water Treatment Civil Engineering Construction Piping Hydrology Environmental Engineering Wastewater Treatment Plumbing Soil Nailing Water Supply Potable Water Treatment Water Distribution Water Engineering Sewer Distribution                                                                          City & Guilds SriLanka  Institute of Higher National Diploma in Engineering Bachelor's degree Belarusian National Technical University Network Engineer(Pipe Line) OTV Site Engineer China National Aero-Technology Import & Export Corporation Engineering Assistant Tetra Tech Assistant Engineer China Machinery Engineering Corporation