Engineer Explains how to serve 4.3 BILLION requests per day

Description

I sit down with Dylan Morley, Distinguished Engineer at ASOS, to talk about what it takes to build and run one of the world’s biggest fashion e-commerce platforms. From handling 50,000 requests per second to integrating AI-assisted engineering and agentic workflows, Dylan breaks down how ASOS approaches large-scale systems, developer experience, and the future of engineering teams. If you’ve ever wondered how a platform like ASOS scales, how teams are structured, or when to build vs. buy software — this conversation gives a real look behind the curtain. ⏱️ Chapters 00:00 – Who is Dylan Morley? 00:19 – What does “Distinguished Engineer” actually mean? 01:24 – Where ASOS uses code across the business 02:28 – Why every software system needs an owner 03:19 – Build vs. buy: How ASOS decides what to code 05:19 – Running ASOS at scale and preparing for Black Friday 06:25 – How ASOS uses AI and agentic workflows 08:33 – Advice for developers joining large engineering teams 09:21 – Closing thoughts