Lefteris Kokkonas

Lefteris Kokkonas

Head of Engineering Sainsburys
Creative and strategic thinking technology leader, with 18 years of hands-on experience in commercial software engineering (8 years in heavily regulated industries Rail & Energy, Insurance), specialising in setting up diverse technical teams for success. He leads the technology and engineering strategy of Sainsburys Media Agency, that serves as the primary vehicle for monetising one of the UK's richest loyalty datasets. Over the past two years, his team has transformed the retail media landscape by building a first-in-class, unified ecosystem that seamlessly connects brands with shoppers. Their work empowers FMCG suppliers and partner agencies to make smarter, data-driven decisions and drive measurable commercial growth.

Day 2 | 9th September

9:00 AM Case Study: Going Beyond Retail Media: How we are building the retail ecosystem of the future to go beyond media and achieve multi-asset monetisation

  • Discover how retail media transforms into a full retail monetisation ecosystem, integrating loyalty, payments, in-store programmatic, data products, and open-web activation into one interoperable commercial engine 
  • Learn how agentic AI, identity-first infrastructure and composable tech architectures reshape everything from product discovery to personalisation, incrementality, measurement and omnichannel attribution 
  • Understand the structural shifts coming between 2026–2028: cross-retailer attribution, new non-retail RMNs, sustainability pressures, multi-market interoperability and the rise of creative automation at scale  

Check out the incredible speaker line-up to see who will be joining Lefteris.

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