Calvin Yau

Background

About Calvin Yau

I am a seasoned IT strategist and enterprise architect with over 18 years of experience driving large-scale technology transformation across the telecommunications sector. My journey began in 2007, evolving through senior technical roles by 2010, stepping into managerial leadership by 2014, and advancing to head-level responsibilities since early 2021.Currently co-leading the Enterprise IT Strategy & Architecture function at CelcomDigi, I shape the organization’s enterprise architecture vision, enable business-aligned technology strategies, and drive cross-domain innovation. I lead a team of 17 and work closely with business and technology leadership to co-create architectural solutions that support transformation at scale.My portfolio includes: • Leading Celcom’s enterprise cloud transformation (Microsoft Azure) • Designing IT Reference Architectures aligned to TMForum best practices • Governing a USD 100M+ IT portfolio spanning applications, infrastructure, and data • Co-driving CelcomDigi’s post-merger IT integration as the EA stream leadI actively contribute to product innovation, serving as Technology Lead since Nov 2024, working with Datuk Idham (CEO) and key business units in bi-weekly ideation forums across Consumer, Enterprise, Home & Fiber, and InnoCo domains.What defines my leadership is the trust earned over the years—to drive transformation that is strategic, scalable, and measurable. I lead with a mindset anchored in value, velocity, and vision—bridging business needs with technology excellence.