I'm Vrinda — an SDE2 at Salesforce, previously at Amazon and Walmart, with 5 years in backend engineering spent mostly on systems that had to survive real scale and real 2 a.m. pages.
The 2AM Postmortem is where I write about what those systems actually taught me — the tradeoffs, incidents, and decisions nobody warns you about until you're the one holding the pager. Not textbook theory. Real incidents, broken down the way I'd actually explain them to someone sitting next to me at 2 a.m., trying to figure out why everything just fell over.
If you're prepping for system design interviews, working through a gnarly distributed systems problem, or just want to understand how these systems actually break in production — you're in the right place.
I also write longer-form pieces on Medium — incident deep dives and system design breakdowns that sometimes go into more depth than a single issue here allows.
New issues land every week. If something here is useful, or you want to see a specific incident or topic covered, hit reply on any email — I read everything.