System design is the discipline of translating product requirements into scalable components, interfaces, storage choices, and trade-offs. AI can draft diagrams, but senior engineers still need to choose the right bottleneck, defend consistency choices, and explain what breaks first.
These are the capabilities the app grades and coaches while you work through scenarios.
The same four moves apply across every discipline, but the evidence changes by track.
Frame product requirements, scale, reliability, latency, and durability constraints.
List components, APIs, storage choices, queues, and failure modes.
Optimize for the bottleneck that matters most to the product.
Win by defending the architecture and naming what breaks first.
Design a realtime notification system for 50M users.
Design product analytics ingestion for a fast-growing SaaS company.
Design a collaborative document editor with offline support.
HackProduct sells the career moment first, then routes you into the reps and disciplines that prove the skill.
Build a readiness trail across FLOW moves, disciplines, and live follow-up pressure.
Open directoryShow evidence that you can reason beyond implementation without losing technical credibility.
Open directoryTurn repeated judgment reps into evidence of broader scope and stronger operating level.
Open directoryHackProduct does not guarantee compensation outcomes. It helps you build a stronger evidence trail.
Open directoryContinue exploring System design through HackProduct's public learning directory.
Open directoryContinue exploring System design through HackProduct's public learning directory.
Open directoryContinue exploring System design through HackProduct's public learning directory.
Open directoryBoth. The public directory explains the skill, and the app gives you scenario reps, live follow-ups, and rubric-driven feedback.
Architecture choices only make sense relative to user needs, traffic shape, durability requirements, and business constraints.
Public previews show the map. The app gives you reps, Hatch follow-ups, FLOW feedback, weak-move drills, and saved proof of progress.