System Design Mock (SDE-2 / Senior) with Raushan Singh

A 60-minute high-level design round run the way SDE-2 and Senior panels at product companies run it: an open-ended problem (e.g. a notification system, rate limiter, chat or feed), requirements, capacity estimates, APIs, data model, deep dives and trade-offs.

I've built these systems in production (a 400K+ requests/day notification platform at Oracle, data lineage at PayPal) and cleared system design rounds at Yahoo, Palo Alto Networks and NetApp.

You get a scorecard on structure, depth, trade-offs and communication, plus written feedback within 24 hours. Share your target company and level in the booking questions.