Aleyn leads the Carbon Trust's ICT and energy practice for corporate sustainability, and work on Net Zero transition programmes. This includes designing and delivering industry collaboration initiatives and advising companies on decarbonising their value chains. A focal point is bringing together companies, suppliers, solution providers, and financing to innovate and drive change towards net-zero.

Prior to joining the Carbon Trust, Aleyn worked for several years in strategy consulting for Booz & Co (formerly Booz Allen Hamilton) in the UK, as part of the telecoms and supply chain practices, as well as at a tech consultancy in China. Aleyn holds a Bachelor of Arts in Natural Sciences from Cambridge University, and both a dual master's degree from the Massachusetts Institute of Technology.