Wei, also David, is an experienced digital transformation advisor in ThoughtWorks, has rich experiences in digital strategy, legacy system modernization, and organization development/transformation. Wei has 10+ years of professional experience in semiconductor, telecom, energy, banking, and insurance, with different titles including software engineer, software architect, and enterprise architect. Since 2008, Wei started to get involved in legacy software architecture transformation and large scale system modernization topics. David has helped large scale (20+ million LOC) codebases transformed towards loose-coupling and micro service-liked architecture style.