📰 Dev.to · Joud Awad
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Dev.to · Joud Awad
1d ago
23/30 Days System Design Questions!
Your feed service was reading at 20ms. Then a celebrity with 2M followers posted. Now you're at 4...
Dev.to · Joud Awad
2d ago
22/30 Days System Design Questions
Your payment service just charged a customer. It writes to the DB. Now it needs to tell the...
Dev.to · Joud Awad
3d ago
21/30 Days System Design Questions!
You're shipping an AI chat product. The LLM streams ~40 tokens/sec per user. 50,000 concurrent users...
Dev.to · Joud Awad
4d ago
17/30 Days System Design Questions!
Your Kafka consumer is processing 800 events/sec. The producer just hit 5,000 events/sec and it’s...
Dev.to · Joud Awad
5d ago
20/30 Days System Design Questions!
Your checkout service calls a 3rd-party fraud-check API on every order. That API just started timing...
Dev.to · Joud Awad
6d ago
19/30 Days System Design Questions!
Your checkout endpoint has a 400ms P95. Profiling shows 70% of that is DB reads. You add a read...
Dev.to · Joud Awad
1w ago
1/30 Days System Design Question
our mobile app talks to 3 backend services directly. A 4th one ships next sprint. The mobile team is...
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