Engineering
Why delivery slows down as a product team grows, what an internal developer platform contains, which numbers show whether it works, and how to build one in small steps without overbuilding.
Platforms
Shared schema, schema per tenant or database per tenant. How each isolation model works, where it leaks, and why tenancy has to reach auth, caches, jobs and backups as well as the database.
Engineering
What regulation actually asks of your architecture, and how to choose hosting, services and tools so an audit becomes a routine task instead of a rebuild.