A systems engineering range
What brings you here?
Crucible drops engineers into a running system that misbehaves under load. Practice on it, or assess the engineers you hire and train.
Fix a running system under load.
- Edit code and config in the browser, no setup.
- Real containers running real services, not mocks.
- A hidden judge tests your fix and scores it.
Assess engineers on a realistic incident, not a quiz.
- Choose who can enter and whether copy and paste work.
- The clock starts at the briefing; candidates can't pause it.
- Read each candidate's report and integrity timeline.
Not sure yet? Each page links to the other at the top.