Roger Wang is General Manager of Global Data Centers at Alibaba Cloud, overseeing strategic planning, technology development, delivery and operations. His work explores the integration of computing infrastructure and energy systems to support more sustainable digital services. He has spearheaded the Token-Watt-Initiative and leads the ANGEL Green Cloud Computing and Green AI programme under the Alibaba–NTU Global Digital Sustainability Lab. Before joining Alibaba Cloud in 2020, he worked at AWS, IBM and Huawei. He has also contributed to international discussions on sustainable computing and digital infrastructure.