AWS, incidentally, spoke a tonne at re:Invent 2019 on how they run their operations. It is interesting contrast against the article because AWS takes a different approach (no dedicated SREs)-- The engineers that build the system run ops, too.

Some references:

[0] Colm MacCarthaigh, How to take control of systems, big & small, https://www.youtube-nocookie.com/embed/O8xLxNje30M (2018)

[1] Eric Brandwine, Aspirational security, https://www.youtube-nocookie.com/embed/ad9180b4Xew

[2] Marc Brooker, Amazon's approach to building resilient services, https://www.youtube-nocookie.com/embed/KLxwhsJuZ44

[3] Peter Ramensky, Amazon's approach to high-availability deployment, https://www.youtube-nocookie.com/embed/bCgD2bX1LI4

[4] Andy Troutman, Amazon's approach to running service-oriented teams, https://www.youtube-nocookie.com/embed/n1d20Yok000

[5] Colm MacCarthaigh, Amazon's approach to security during development, https://www.youtube-nocookie.com/embed/NeR7FhHqDGQ

[6] Becky Weiss, Amazon's approach to failing successfully, https://www.youtube-nocookie.com/embed/yQiRli2ZPxU

[7] Thomas Blood, Amazon's culture of innovation, https://www.youtube-nocookie.com/embed/2ZQKPUD7vKE

[8] Andy Warfield and Seth Markle, Lessons from Amazon S3's culture of durability, https://www.youtube-nocookie.com/embed/DzRyrvUF-C0

[9] Colm MacCarthaigh, Lessons from Amazon's highest available data-planes, https://www.youtube-nocookie.com/embed/2L1S0zfnIzo

[10] Eric Brandwine, The tension between absolutes & ambiguity in security, https://www.youtube-nocookie.com/embed/GXTvlQXVCOs (2018)