Martin is a well-known leader in the UK infrastructure sector and internationally. He has held an international role for UK Govt advising on major infrastructure delivery in Australia, Argentina, Israel and the United States. He has also advised on and developed commercial and procurement strategies for mega infrastructure projects such as Sydney Metro and the extension of Buenos Aires Metro in Argentina amongst many other significant infrastructure programs. Previous roles include Procurement Director of Crossrail Limited (the £18bn Elizabeth Line), at the time the largest infrastructure project in Europe and Director of Commercial at TfL with responsibility for approx. £20bn of capital programmes. Along with the successful procurement of Crossrail, Martin was also responsible for the procurement of the London 2012 Olympics (where he developed the ODA’s Procurement Strategy and was responsible for the acquisition of the Olympic venues). 
Martin has been a standing member of the HS2 Independent Assurance Panel over a period of six years (where he undertook 108 separate reviews on commercial matters for the HS2 Executive Board). As a UK Cabinet Office Accredited IPA High Risk Reviewer he has carried out over 150 separate delivery and commercial assurance reviews. He has undertaken Reviews on projects for National Highways (Lower Thames Crossing, Smart Motorways and Stonehenge Tunnel), Sellafield (new capital delivery model PPP, Infrastructure Strategic Alliance), Magnox (new programme delivery model), DfT (Search and Rescue Generation 2), Nuclear Decommissioning Authority and Palace of Westminster (R&R Programme). 
Martin has recently successfully concluded a five-year appointment as a key International Expert Witness on a major infrastructure dispute worth more than US$5bn.