1 min lesson
The onsite
Match each case in "The onsite" to the signal and response that fit it.
Step 1 of 2
The JD frames the onsite as “work on a small project, discuss ideas and meet the team.” Expect a hands-on build block, a design discussion that orbits the team's flagship problems and meetings that are quietly real signal.
This is the decisive stage because it simulates the job directly. You won't be graded on a sprawling half-built architecture; you'll be graded on small, correct, well-instrumented increments and how you reason out loud while building them.
Hands-on build, likely gateway/router flavored.
Orient first: read, run, ask one sharp question.
Ship correct increments, not a grand design.
Orbits the gateway, failover and backpressure layers below.
Bring explicit numbers to every answer.
Name the tradeoff you're making, not just the choice.
Real signal, not a formality.
Ask about their actual routing/failover pain.
Show you read the role and the landscape.
Learn more
Full explanation
What the Design Discussion Orbits
Interactive diagram. Tab through its regions; each focused region shows its detail in the panel below.
The inference path the role owns, layered from the user-facing surfaces down. The design discussion lives in the middle three layers.