Learning path overview
How Scalable Systems Actually Work
Start with requirements, measure real limits, and add architectural complexity only when the workload calls for it.
Engineering judgment, not diagram memorization
Start with the problem, then choose the shape.
This path is for developers who have built a web application and can follow a request through an API and database. It begins with requirements and limits before considering scaling mechanisms. That order helps you review AI-generated architecture: ask what workload, failure goal, and team capability justify each component.
- For
- Developers who know basic frontend, backend, APIs, and databases and want to reason about growing production systems.
- Prior knowledge
- One web-app project and a basic request flow are enough. The linked preparation below is useful, not a required completion gate.
- You will understand
- Requirements, workload, bottlenecks, scaling, and later tradeoffs around services, caching, data, resilience, and observability.
- Published reading
- 49 minutes estimated across 3 published lessons. Planned lessons are excluded.
Read available lessons individually or in order. Opening a lesson does not record progress; there is no account, completion score, or certificate.
The system-design sequence
Ten decisions in learning order
- System Design Starts With Requirements and ConstraintsRead lesson →
- Latency, Throughput, Capacity, and BottlenecksRead lesson →
- Scaling, Load Balancing, and Stateless ServicesRead lesson →
- Monoliths, Modular Monoliths, and MicroservicesPlanned · not yet published
- Caching, CDNs, and Cache InvalidationPlanned · not yet published
- Database Scaling, Replication, and PartitioningPlanned · not yet published
- Consistency, Availability, and Distributed TradeoffsPlanned · not yet published
- Queues, Events, and Asynchronous ProcessingPlanned · not yet published
- Timeouts, Retries, Idempotency, Rate Limits, and BackpressurePlanned · not yet published
- Observability, High Availability, and Designing for FailurePlanned · not yet published
The other 7 titles describe planned lessons. They do not open empty article pages.
Optional preparation
The system you are designing
- Frontend, Backend, and Database: How They Work Together
- What Happens When You Enter a URL?
- APIs and JSON: How Applications Communicate
- How a Backend Processes a Request
- How Databases Store and Retrieve Data
- Deployment and Cloud Servers: From Source Code to a Running Application
- Reverse Proxies, Logs, and Debugging Production Failures