Notion technical phone screen interview

Round 3 of 7 · 3 questions reported

See the whole loop
Length
60 min
Format
Live coding in CoderPad
They grade
Clean structure and naming, and explaining your reasoning as you go

Questions Notion asks in this round 3

  • Table aggregation with group-by sumCodingAggregate table rows with a group-by sum over a chosen column, as a database table view would. Reported on 1point3acres' Notion bank; reconstructed in our own words.
    Last asked Feb 2026
  • Text editor with undo and redoCodingBuild a small text editor supporting insert, delete, undo and redo with correct cursor behavior after each operation. Reported on 1point3acres' Notion bank; reconstructed in our…
    Possibly retired
  • Collapsible JSON viewer in ReactCodingIn an hour of React, pretty-print a JSON value (objects, arrays, strings, numbers) with indentation, and give every nested object and array a toggle that collapses it to a…
    Possibly retired