Mariama Whitmore

Relationship Building, Sierra Leone


Mariama is a Senior Commercial Manager with Transport for London specialising in pre and post contract management and administration. She has over 25 years of extensive operational and administrative experience in public transport operations, infrastructure and logistics, and has worked in both surface and underground transportation.

She is currently the Lead Commercial Manager for the Capacity & Optimisation Portfolio at London Underground, overseeing the procurement and commercial management of a number of programmes including civil works, signal and controls systems for the Jubilee, Northern and Piccadilly lines. As a Senior Procurement Manager at London Underground, Mariama was responsible for the procurement function of one of the company’s investment programmes, focusing on strategic purchasing activities including contract awards for the Victoria Line Mid-Tunnel Ventilation Shafts (cc £25m) and Sub Surface lines power upgrade packages (cc £120m). Mariama has provided planning, logistics and the procurement of materials and spares for the maintenance of trains, signals and associated assets.

Mariama’s human resource experience has been gained through the process of negotiating and recruiting professional service providers under performance management and appraisal frameworks. She is also an accredited workplace mediator for TfL.