Loading...
Loading...
Loading...
Learn how to design systems that scale, from caches and databases to load balancers and the classic interview questions.
Free, no-obligation chat · Affordable plans that fit your budget · Start this week
About this course
System design questions ask you to plan a whole product, not write one function. Learners often freeze because the question is open ended: where do I start, what should I draw, and how do I explain trade-offs? The good news is that most designs use the same small set of building blocks.
This course covers those building blocks and how to combine them: requirements and estimation, latency and throughput, monolith and microservice styles, API design, caching, databases and indexing, replication and sharding, load balancing, queues, rate limiting, reliability, and worked designs such as a URL shortener, a paste service and a rate limiter. Each module lists its topics and outcomes.
Study on your own with our free system design lessons, or learn with an affordable 1:1 mentor who runs design sessions with you on a whiteboard and gives honest feedback. Message us on WhatsApp or email, or fill in the short form, for a free, no-obligation chat. We will suggest a plan that fits your budget and flexible timings in your time zone, and you can start this week.
Outcomes
Detailed syllabus
Every module lists its topics and what you will be able to do. Where we have a matching free lesson, it is linked so you can study or revise on your own.
What a design round asks and a repeatable way to answer it.
By the end of this module you can
Quick numbers that justify your design choices.
By the end of this module you can
Ways to organise a backend.
By the end of this module you can
Interfaces that stay safe under load and failure.
By the end of this module you can
Making reads fast and keeping data fresh.
By the end of this module you can
Storing data so it stays fast and safe.
By the end of this module you can
Handling more traffic with more machines.
By the end of this module you can
Moving slow work out of the request.
By the end of this module you can
Covered in 1:1 mentoring sessions
Keeping a service healthy under heavy or abusive traffic.
By the end of this module you can
Keeping systems running and understandable.
By the end of this module you can
Covered in 1:1 mentoring sessions
Worked designs you can explain from start to finish.
By the end of this module you can
Getting ready for a design round.
By the end of this module you can
Ways to learn
A mentor who knows this course plans sessions around your goal, explains each idea with fresh examples and checks your understanding. Personal attention, flexible timings in your time zone and affordable plans that fit your budget.
Talk to our teamShort lessons in plain English with examples you run in your browser, quizzes and practice. Learn at your pace, and add a mentor whenever you want help.
How it works
Four simple steps to start System Design with a mentor. A real person replies to you; there is no booking system.
Message us on WhatsApp or email, or fill in the short form. The first chat is free, with no obligation.
We listen to your goal, level and deadlines, then suggest a plan that fits your budget and timings.
Online 1:1 sessions with a mentor who knows your course, explains clearly and checks your understanding.
Keep going between sessions with practice, and watch your confidence grow week by week.
Learn by doing
Write requirements, estimate traffic, design the API and database, and explain how you would scale reads with a cache.
Implement a small rate limiter in code and write a note on where you would place it in a real system.
Draw clear diagrams for three systems of your choice, each with a short list of assumptions and trade-offs.
Complete a series of timed design rounds with a mentor and a self-review checklist after each one.
Your progress
Milestones from the start, middle and end of the syllabus.
Describe a framework for approaching any design question
Early on
Explain how a load balancer spreads and protects traffic
Halfway
Complete a timed mock design round
By the end
FAQs
Free, no-obligation chat
Tell us what you need. Our support team replies within one working day, by email or WhatsApp, whichever you prefer, and arranges your mentor.
Prefer to talk first?
Message the support team directly. We usually reply the same day.
Our mentors teach and explain. They never complete graded work, tests or assessments for students.
Keep going
Patterns, core questions, communication and mock rounds for coding interviews.
Build secure REST APIs with Spring Boot, JPA, validation, JWT and tests.
SQL from first query to joins, window functions, design and indexes.
Docker, Compose, CI/CD pipelines and deployment, from basics to production.
AWS and Azure fundamentals: compute, storage, networks, security and deployment.
Layered models, IP and subnetting, routing, TCP and UDP, DNS, HTTP and security.
Last reviewed
Message us on WhatsApp or email, or fill in the short form. Our team replies with a plan that fits your goal and budget, and you can start this week.
Talk to us about a mentor