Grokking Microservices for System Design Interviews
Service decomposition, inter service communication, data ownership and the failure modes that appear the moment a system stops being one process. Interviewers ask about the trade offs, not the diagram.
Course
System Design
Design Gurus
2 to 3 weeks
Intermediate
Subscription
What it covers
How to split a system into services without producing a distributed monolith, synchronous versus asynchronous communication, per service data ownership, the saga pattern for transactions that span services, service discovery, and the observability you need once a single request touches eight processes.
The honest part
Good microservices material spends as much time on the costs as the benefits, and this does. Network calls fail, transactions no longer span a single database, and debugging becomes correlation across logs. A candidate who describes those costs unprompted reads as experienced.
How to use it
Map it onto a system you have actually worked on. Ask where you would have drawn the service boundaries and what would have broken. That exercise produces the specific examples the behavioural half of a design round wants.
Best for: backend engineers at companies moving toward services, and design candidates at mid level and above.
Ready to start?
Opens on Design Gurus in a new tab.
Stuck on something specific?
Writing only gets you so far. If you want an answer to your situation rather than the general case, book a session and we will work through it together. Every session is free; a few slots open each week.
Follow along
New writing, resources and project ideas land here first.