Changa Mettananda, M.Sc., P.Eng. (AB), is a senior geotechnical engineer with more than 20 years of experience in mining and infrastructure projects, including extensive experience in the oil sands. His experience includes design, construction and performance evaluation of tailings and water dams, design of pit walls in soft rock, foundation recommendations, planning and executing geotechnical investigations, slope stability and seepage analyses, deformation modelling, static liquefaction assessment, planning geotechnical instrumentation programs and data assessment, hydraulic and structural design of buried pipes, developing construction drawings and specifications and overseeing construction quality control. Over the years, Changa has fulfilled various project roles, including technical lead, project engineer, field engineer and project manager.