System Design interview prep track
Architecture, distributed systems, and depth for senior/staff design rounds. This track sequences every skill a System Design loop tests into one learn, drill, and prove path, then ends in a scored capstone mock inside Round Zero.
- An ordered skill checklist, required and optional
- Each skill drilled with questions, flashcards, and a scored mock
- A capstone mock in the format this role actually uses
Skills this track covers
Work through them in order. Each links to its own interview questions page and a scored practice path.
- 1System DesignScaling, caching, load balancing, and data-partitioning trade-offs.Required
- 2Distributed SystemsCAP theorem, consensus, replication, and consistency models.Required
- 3Data StructuresArrays, hash maps, trees, heaps, and choosing the right one under constraints.Required
- 4AlgorithmsBig-O analysis, sorting, recursion, and patterns like two pointers and BFS/DFS.Required
- 5Concurrency & MultithreadingRace conditions, locks, deadlocks, and thread-safe design.Optional
The capstone mock
Once you prove the required skills, the System Design track ends with a full scored mock interview in the format this role actually uses. It probes your answers, pushes back on vague reasoning, and scores you on a rubric with evidence quoted from what you said, so you walk into the real loop already having done it once.
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Ready to prep for a System Design role?
Sign up free. The System Design track walks you through every skill, then proves it in a scored capstone mock.
- ✓ Ordered skill path, required and optional
- ✓ Drills, flashcards, and scored mocks per skill
- ✓ A capstone mock in this role's real format
Questions & answers
- What does a System Design interview test?
- Architecture, distributed systems, and depth for senior/staff design rounds. This track covers System Design, Distributed Systems, Data Structures, Algorithms, Concurrency & Multithreading, which is what most System Design loops probe before the onsite.
- Is the System Design prep track free?
- Yes, you can start the System Design track free inside Round Zero. Each skill has lessons, drills, flashcards, and a scored mock. Sign up to unlock full drills and your scorecard.
- Which skills should I prioritize for a System Design interview?
- Start with the required skills: System Design, Distributed Systems, Data Structures, Algorithms. Prove each in a scored mock, then round out with the optional skills before your loop.
- How long does the System Design track take?
- It is self-paced. Each skill path is a short learn-drill-prove loop, so you can clear one skill in a focused sitting and finish the System Design track over a few sessions.
- What is the capstone mock?
- After you prove the skills, the System Design track ends with a full scored mock interview in the format this role actually uses, so you rehearse the real thing before the real thing.