BackendDevOps/CloudGeneral
Feature Flags
Also written as Feature Toggles, LaunchDarkly
A technique for turning a feature on or off remotely for some or all users, without deploying new code — letting teams ship code dark, test with a subset of users, or instantly roll back a bad feature.
Think of it like
Like a light switch wired into a wall the electrician already finished, letting anyone flip a room's lights on or off without redoing any wiring.
Junior or senior?
Junior sounds like
Adds feature flags but never removes them.
Senior sounds like
Can describe how their team actually managed flag cleanup before it became a mess.
Ask them
“How did your team keep old feature flags from piling up and never getting removed?”