Each candidate gets a real broken Linux server. Every command, file edit and fix is recorded. Review hours of investigation in five minutes.
with more to comeWriting code is becoming commoditised. The skill that separates a junior from a senior engineer is the ability to investigate broken systems and orchestrate fixes across a real stack. That's the signal Bisect captures.
Forty five minutes per candidate, per interviewer, with inconsistent signal. Senior engineers carry the load and burn out on it.
Async sessions. Review a recorded replay in five minutes, with event markers, a session summary and a weak / acceptable / neutral / strong verdict.
HackerRank-style assessments measure pattern recall in a stateless editor. Modern AI coding assistants solve most of them out of the box. The signal is gone.
A real broken stack. The candidate has to investigate, hypothesise and verify. There's no prior solution to memorise or paste in.
"Tell me about a time you debugged something" rewards storytelling. You learn nothing about how the candidate actually moves through a system.
Watch them do it. Every command, every file open, every fix. The replay is the evidence.
Each candidate runs in their own isolated Linux server with a full production-style stack. Terminal I/O and file changes are captured server-side, so what you see in the replay is what actually happened.
Every keystroke and file change is recorded server-side. Scrub through the session, speed it up, jump straight to the moment the candidate first opened the logs or restarted the service.
Group candidates by role or pipeline stage. Send magic-link invitations in bulk and watch progress move from invited to in-progress to completed without chasing emails.
Pick a challenge by language and seniority. Junior scenarios focus on core methodology — reading logs, isolating a failing service. Senior scenarios chain multiple services together with misleading symptoms.
| capability | detail |
|---|---|
Real environments | Each candidate runs in their own isolated Linux server with a full production-style stack. Real services, real process supervisor, real network stack. |
Async sessions | Candidates work when they are sharp. No live observation, no scheduling overhead, no senior engineer pulled out of their day. |
Scoring rubrics | Per-challenge rubric items keep reviewers consistent across cohorts and roles. Did they read the logs? Did they verify the fix? |
Rotating challenge set | Challenges are parameterised and rotated over time, so prior exposure doesn't shortcut the investigation. |
Bisect is built to be self-serve. No demo calls, no procurement, no infrastructure on your side.
Filter by stack and seniority. Generate a unique link. The candidate gets an email and a clear briefing.
Browser-based terminal, editor and file tree, backed by a sandboxed Linux environment. Every action is captured server-side as it happens.
Skim the timeline, jump to event markers, read the rubric. Make a hire decision with the actual evidence in front of you.
Start with a 14 day trial. Cancel any time, your replays stay accessible.
For small teams running a handful of assessments a month.
For teams hiring at volume across stacks and seniority levels.
Need more than 100 sessions a month? Talk to us.
Run your first assessment in under five minutes. The trial includes one free senior-tier challenge for your team to try first.