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Intermediate System Design in 21 days

Load balancing, caching with Redis, database scaling, message queues, CDNs, and rate limiting.

  • Daily plan, 45-60 min a day
  • 7 lessons + 21 exercises
  • AI tutor included
duration21-day sprint
Topics7 total
Exercises21 total
levelIntermediate
  • No prior coding experience required
  • Practice tasks every day
  • Build impressive portfolio project

What you will learn

A powered by mentors Intermediate plan with structured subtopics, quizzes, and practice tasks.

01Core

Load balancing strategies

Compare round-robin, least-connections, and consistent hashing approaches.

02Core

Caching with Redis

Apply cache-aside, write-through, and TTL strategies using Redis.

03Challenge

Database scaling: replication and sharding

Scale reads with replicas and distribute data with horizontal sharding.

04Challenge

Message queues and async processing

Decouple services with Kafka, RabbitMQ, and event-driven patterns.

05Core

CDNs and edge caching

Serve static and dynamic content from the edge for global performance.

06Core

Rate limiting and traffic management

Implement token bucket and sliding window algorithms for rate control.

07Challenge

Capstone: design a URL shortener at scale

Apply all components to design a high-traffic URL shortener end to end.

See the quiz + practice flow

Three answered questions and a filled code task so you know exactly what to expect.

Quiz preview

2/3 correct

1. How long is the System Design plan?

Correct
21-day sprint
5-day sprint
7-day sprint
10-day sprint

2. What level is this System Design plan?

Incorrect
Beginner
Intermediate
Advanced
Expert

3. Which of these appears in the System Design outline?

Correct
Load balancing strategies
System Design workflow playbook
System Design best-practice checklist
System Design case study

Code practice preview

Submitted

Format a lesson title

Build a helper that formats a lesson label with a padded index and title.

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