Now in beta — GPU, Linux & Kubernetes scenarios live

Like a flight simulator — but for infrastructure incidents.

Technical assessments for SRE, DevOps, and infrastructure engineers. Test real debugging skills with hands-on Linux troubleshooting — not how they whiteboard.

Run a Demo Incident See How It Works
candidate@gpu-node-01 — parium assessment
# Candidate investigating GPU driver failure
root@gpu-node-01:~$ nvidia-smi
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver.
 
root@gpu-node-01:~$ lsmod | grep -E 'nvidia|nouveau'
nouveau 2093056 1
 
root@gpu-node-01:~$ modprobe -r nouveau && modprobe nvidia
Loading nvidia driver...
 
root@gpu-node-01:~$ curl -s localhost:8080/health | jq
{ "status": "healthy", "gpus": 2 }
 
# ✓ Incident resolved in 08:42 — 0 hints used

Up and running in 3 simple steps

Use our ready-made scenarios or let us build custom assessments for your stack.

Step 1
Step 2
Step 3

Tell us what you need

Pick from our ready-made scenarios — GPU debugging, server performance, Kubernetes — or tell us your stack and we'll build custom assessments.

Send to candidates

Share a link. Candidates enter their details and drop straight into a live terminal — no downloads, no accounts, no friction.

Get real insights

See exactly how they debug: time to resolution, commands used, thought process. Make confident hiring decisions backed by data.

Built for serious technical hiring

Everything you need to assess real engineering skills.

Real Terminal Environments

Full Linux containers with production-realistic scenarios. Not a sandbox — a real system to debug.

Time-to-Resolution Tracking

Automatic timing from first command to incident resolution. Compare candidates objectively.

Runbook & Hint System

Real SOPs like your team uses. Track if candidates can follow procedures or need extra guidance.

LLM Detection

Paste event tracking and pattern analysis to flag candidates who might be using AI assistance.

Command History Export

Full session logs with timestamps. Review every step the candidate took to solve the problem.

Multiple Scenarios

GPU drivers, disk space, runaway processes, API configs. Match the assessment to the role.

Scenarios that mirror your production

Each assessment is a carefully crafted incident with realistic logs, configs, and system state. Candidates face the same challenges your team handles in production.

  • Real kernel modules, drivers, and system services
  • Production-accurate log files and error messages
  • Health check endpoints that validate the fix
  • Industry-standard diagnostic tools (dmesg, journalctl, lspci)
Try a Scenario
═══════════════════════════════════════════════
          INCIDENT ALERT - SEV 1
═══════════════════════════════════════════════

INCIDENT ID:  INC-2026-0119-GPU
SEVERITY:     Critical
AFFECTED:     gpu-node-01.neocloud.internal

───────────────────────────────────────────────

GPU compute jobs are failing on gpu-node-01.
The node has 2x NVIDIA A100 80GB GPUs that 
are not being detected by our monitoring.

Impact:  $4.50/hr revenue loss
Queued:  3 customer training jobs

═══════════════════════════════════════════════
              YOUR TASK
═══════════════════════════════════════════════

1. Investigate why nvidia-smi cannot communicate
2. Identify the root cause
3. Restore GPU functionality
4. Verify health check passes

Built for roles that matter

Assessment scenarios designed for specific technical positions.

Site Reliability Engineers

Test incident response, system debugging, and production troubleshooting skills with real-world scenarios.

GPU Driver Failure Disk Space Critical Service Health

DevOps Engineers

Assess configuration management, service debugging, and system administration capabilities.

API Gateway Config Container Issues Log Analysis

Platform Engineers

Evaluate infrastructure knowledge, driver management, and hardware troubleshooting skills.

Kernel Modules Driver Conflicts System Boot

Linux System Administrators

Test core Linux skills, process management, and filesystem troubleshooting abilities.

Runaway Process Disk Management Service Recovery

An assessment engineers actually enjoy.

No unfamiliar IDEs. No artificial puzzles. Just a terminal and a real incident — the environment they work in every day.

  • 20 minutes, not 4-hour take-homes
  • Real terminal, real Linux
  • Actual incident response, not trivia
root@gpu-node-01 — debugging
root@gpu-node-01:~$

Ready to hire engineers you'd trust on call?

See real incident performance — before you hire.

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