Architecture Considerations for platform engineering teams
thenewstack.io
thenewstack.io
If you're not actually building a platform, but instead are just borrowing the name for your Ops team so you can get more funding from your dumb bosses, more power to ya.
"Mature" tech companies often aren't in my experience. Most of them fail to implement the most basic IT standards, unless some law or contract forces them to go through the motions.
"Our data platform is a best in breed Data Warehouse + ETL + BI tool that all are glued together with the built in integrations and a tiny bit of custom work"