Ioannis Polyzos is the founder and CTO of Null Box Ltd, where they design and deploy scalable cloud, AI/LLM, and DevOps solutions. With over 15 years of experience designing, building, and scaling distributed systems and cloud architectures, they work across multi-cloud environments and specialize in AWS, Kubernetes, microservices, serverless, and cloud cost optimization. Prior to founding Null Box Ltd, they held roles such as Senior Solutions Architect at Amazon Web Services (2022–2023) and Cloud Architect / Vice President at JPMorgan Chase & Co. (2015–2017), and contributed as Software Development Engineer II at Expedia (2011–2012). They held a PhD in Computer Science from Glasgow Caledonian University, an MSc from Glasgow Caledonian University, and a BSc from the University of Exeter.
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