Cathal is a Senior Software Engineer with 9 years of experience across startups and international big tech, specialising in high-scale backend systems, data architecture, and DevOps automation. He has led system design for data lakehouses, event-driven data pipelines, and compliance platforms, with a focus on scalability and long-term maintainability.

Earlier in his career, he spent two years at Meta (Facebook) in Dublin and London, where he led the migration of a critical search backend serving millions of users. He has since gone on to build DevOps automation systems, data engineering foundations, and Generative AI–powered workflows for engineering teams at fast-growing startups and scaleups.