Leslie is a Fellow of the Royal Institution of Chartered Surveyors and a Member of the Chartered Institution of Arbitrators and currently working as a Private Consultant on Cost and Commercial Management, Contract Procurement and Administration, Construction Claims, Arbitration and Expert Witness reports related to major construction projects.
He has worked in most parts of the world and his last employer was Ove Arup and Partners, a major international design engineering consultancy firm, based in London.
He is also a Commissioner of the Disaster Management Commission of the Royal Institute of Chartered Surveyors, UK. The commission has completed a Process Protocol Document two years ago for post construction work soon after a major disaster to use the funding available in the most cost-effective way. The UN, EU, World Bank, IMF and other aid agencies have accepted it for implementation.
He is involved in a Sri Lankan charity “Hela Sarana” (formed in 1996) based in the United Kingdom. It has done several housing projects and other school and hospital buildings in Sri Lanka including 100 houses for tsunami victims in the Southern Region of Sri Lanka. Currently funding a scholarship programme for nearly 400 students in Sri Lanka through sponsorships.
He joined APSL in 2004 and has served as a Vice President, General Secretary (2012 to 2014) and as President from 2015 to 2017.