System Design Deep Dive - Scale and Customer Focus

I've designed systems at Amazon Pay (30MM MAU, 1500 TPS), Slice (in-house UPI switch, Core Banking), and DE Shaw (400-500M txn/day reconciliation systems).

This session is a structured 1:1 system design review:

• You present your design (interview prep or real-world)

• I challenge it on scale, failure modes, and trade-offs

• We close gaps and I explain how I'd approach it

Best for: SDE-2/3 targeting Senior/Staff, or engineers prepping for

FAANG system design rounds