Prepare for system-design interviews with a study path you can finish.
Caching, sharding, queues, consistency — Synapse sequences the whole surface into one course, teaches each topic with a lesson, then drills you on the real interview prompts. No 500-page book to abandon by chapter three.
System Design — Interview Track
4–6 weeks · 8 topics- Back-of-envelope estimates
- Caching strategies
- 03Sharding and partitioningUp next
- 04Consistency trade-offs
- 05Design: URL shortener
- 06Design: news feed
2 of 8 topics locked in
You don't run out of material. You run out of sequence.
Every stalled prep starts the same way: a bookmark folder of videos, a famous book, and no order to any of it.
The surface is enormous
Databases, caching, sharding, queues, consistency models, rate limiting, CDNs — reading them out of order means re-reading them forever.
Interviews drill deep, fast
The interviewer picks one of your answers and pushes: “What breaks at 10× traffic?” Broad-but-shallow prep has nothing to say.
Cramming evaporates
You read a system-design book in 2023 and kept three diagrams. Without retrieval practice, that is the ceiling of any book.
From “I'll wing it” to a path with a finish line
One generated course carries you from fundamentals to full designs — sequenced, paced, and wrapped in retrieval practice.
Map the ground
State your target level and timeline. Synapse sequences fundamentals → building blocks → full designs into one course you can actually finish.
Learn each block
Every topic opens with a lesson written for your goal — consistency models, back-of-envelope math, when to cache versus replicate.
Drill real prompts
Work the classics — URL shortener, news feed, rate limiter — in the system-design whiteboard, then check yourself with a quiz.
Make it stick
Spaced-repetition flashcards on trade-offs and the key numbers, so your answers survive until interview day — and the job after it.
Fundamentals first, full designs after
A typical generated track — yours is sequenced from the goal you type, including what you already know.
- Back-of-envelope estimates
- Caching strategies
- Sharding & partitioning
- Consistency & CAP
- Message queues
- Rate limiting
- Load balancing
- Replication & failover
- Design: URL shortener
- Design: news feed
- Design: chat system
- Design: ride matching
Examples from a senior-level track — your course is generated from your own words.
Retention is the strategy
The path is wrapped in the same learning science as everything on Synapse — chunking, retrieval practice, and learning by doing.
Chunk & Focus
Topics are chunked into load-sized pieces, then alternated between focused and diffuse thinking — so they consolidate instead of evaporating.
Retrieve & Interleave
Retrieval practice, interleaving, and elaboration beat re-reading. Every review is an active recall, never a passive replay.
Learn by Doing
Self-directed projects with directness and tight feedback loops. You learn the thing by doing the thing, from week one.
System-design prep, answered
Everything else lives in the app — sign in and ask Synapse itself.
Most learners run 4–8 weeks at 30–60 minutes a day. Because the course is sequenced, you can compress it into two intense weeks or stretch it around a job — the plan follows the time you actually have.
Your interview has a date. Now your prep has a path.
Sign in, state your target, and start the system-design path today — lessons, drills, and spaced review included.
Free plan included · No credit card required