Let's talk architecture the way it actually works in production: trad…

Rohan Malhotra

Staff Engineer @ Orbitly | Distributed systems, Go, Postgres | Writing about architecture tradeoffs

26 Sept 2026 System Design Deep Dives

Let's talk architecture the way it actually works in production: tradeoffs, failure modes, migrations, costs. Interview prep is welcome, but grounded in reality. First thread: what's the most interesting design decision you made (or regret) in the last year?

8 reactions3 comments

Comments

AS
Aarav Sharma26 Sept 2026
Moved our payout status updates from polling to an outbox + events. Removed a lot of load and a whole class of race conditions.
RA
Riya Agarwal26 Sept 2026
Regret: building our own job scheduler instead of using an existing one. 2 years of edge cases later...
DJ
Dhruv Joshi26 Sept 2026
Mine is small: adding a cache in front of our pricing API and learning about cache invalidation the hard way 😅

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Let's talk architecture the way it actually works in production: tradeoffs, failure modes, migrations, cost…

Comments

Let's talk architecture the way it actually works in production: tradeoffs, failure modes, migrations, cost…

Comments