Early in my career, I worked on highly-productive Agile teams building software for big internet properties. Ten years (or so) later, I worked as principal systems architect for some of the same organizations. Everyone needed "digital transformation" to move away from legacy software (some I helped build). Which meant moving away from working as one feature-driven team to architecting across multiple product and platform teams.

On social media, I regularly see "agile is dead". "Agile didn't keep up with the times." Or other disparagements of agility. My experience has been the opposite. Teams without fundamental mental and social agility can't scale (effectively) as the architecture becomes more inter-relational.

In this talk, we'll explore the key patterns and principles that maintain cohesion, communication and conceptual integrity as software scales to systems of software. And how the skills Agile taught me have scaled to integral skills for architects.