Gareth McDermott has more than 16 years of experience on major international construction and engineering projects worldwide, including in Ireland, the United Kingdom, mainland Europe, the Middle East, South America, Asia, and Africa. He has worked on projects of varying size and complexity in the building, civil engineering and infrastructure projects, off-shore oil & gas facilities, marine, and process works sectors. 

Mr. McDermott specialises in dispute resolution and forensic investigation of quantum claims. He provides advice and opinion on matters concerning variations, defective works, delay, acceleration, disruption, termination, costs to complete, and final accounts. He has been appointed quantum expert on litigation, adjudication, and mediation proceedings and has been lead assistant to the quantum expert on several major international disputes in arbitration.