[mackid]

Mark Russinovich gives a good talk most years on the internals of Azure and the systems that run it. [1] is an example. Look for talks from other years as well.

Meta also publishes a number of papers/blogs/OSS projects on their engineering site [2]

James Hamilton of AWS gives a talk most years on their infrastructure. Worth watching multiple years [3].

[1] https://youtu.be/69PrhWQorEM?si=u7vh_Um6SQNoyeFH

[2] https://engineering.fb.com/category/data-center-engineering/

[3] https://youtu.be/AyOAjFNPAbA?si=nFRJVcQI4EiamC-O