David is a registered Civil Engineer with ECSA and a member of ASCE. He follows ICE, SAICE and Concrete Society online discussion groups. He has extensive, varied, professional work experience, in civil engineering over 15 years. he is very versatile with contract administration, construction supervision, site monitoring, quality assurance and control, auditing and record keeping in the construction of various large structures and general civil works. He has worked for civil engineering consultants, contractors, mining and petrochemical companies, in Southern and Western Africa; on projects in the Transportation (roads and railway), water, dams, structures, etc. in the construction industry, mining and metals industry.