For candidates

Finally, an interview that lets you think.

No trick questions. No proctoring. No timer. A real incident, a real SQL console, and an AI teammate, because using AI well IS the job now.

1.0

Your reasoning is the signal →

We evaluate how you think through a problem, not whether you memorized the answer. Real data, real logs, a real investigation.

Incident

Generated

SEV-2 · Nightly revenue rollup double-counts orders

At 02:15 UTC, Finance flagged an unexpected spike in nightly revenue. The rollup job completed successfully, but metrics are inflated. Identify the root cause and propose a fix with validation steps.

Services 8Tables 24Updated 2h ago

DetailsCustomer impactTimelineArtifacts

SQL Console

ConnectedRead replica▶

1SELECT
2  o.order_date,
3  COUNT(*) AS orders,
4  SUM(o.amount) AS revenue
5FROM orders o
6JOIN order_items i ON i.order_id = o.id
7GROUP BY 1 ORDER BY 1 DESC;

✦ AI Teammate

Evaluated

I reviewed the incident details and scanned recent schema and job changes. Here's what stands out.

Before you commit: how did you rule out a backfill re-run? The rollup job changed 26h ago, and the new join path is where I'd validate first.

Ask a follow-up…↗

2.0

AI is expected, not cheating →

Think out loud with the AI teammate. It won't hand you answers. How you reason with it is what shines, and the screen always shows you that the conversation is part of the evidence.

Incident
Architecture
Schema
Data
Console
Logs
Thread

Incident

SEV-2 · Nightly revenue rollup double-counts orders

At 02:15 UTC, Finance flagged an unexpected spike in nightly revenue. The rollup job completed successfully, but metrics are inflated. Identify the root cause and propose a fix with validation steps.

Services 8Tables 24Updated 2h ago

DetailsCustomer impactTimelineArtifacts

Summary

Revenue rollup shows ~2.1x inflation starting yesterday 02:00 UTC.

Impact

· Finance reporting inaccurate
· ~$120K over-reported
· Affecting daily dashboards

SQL Console

ConnectedRead replica▶

1SELECT
2  o.order_date,
3  COUNT(*) AS orders,
4  SUM(o.amount) AS revenue
5FROM orders o
6JOIN order_items i ON i.order_id = o.id
7GROUP BY 1 ORDER BY 1 DESC;

✦ AI Teammate

Evaluated

I reviewed the incident details and scanned recent schema and job changes. Here's what stands out.

· Likely cause
orders is joined to order_items without deduplicating items. Orders with multiple items are counted multiple times.

· Evidence
– Join pattern inflates COUNT(*)
– Rollup job changed 26h ago
– Spike aligns with new join path

· Next step
Deduplicate orders before aggregation. I'll draft a query and validation checks.

Ask a follow-up…↗

3.0

You get the reasoning back →

After you submit, you receive the assessment's reasoning about you: cited moments, strengths, the recommendation. Transparency is the default, both directions.

✦

Your reasoning review

Thanks for your time. Here's how we evaluated your reasoning.

Cited reasoning moments

12:43You join to order_items and question the cardinality.

18:07You validate the change window and locate the new join path.

26:31You deduplicate by order_id before aggregation and run validations.

View full transcript ↗

Strengths we saw

✓ Problem framingStrong

✓ Data investigationStrong

✓ Hypothesis qualityStrong

✓ SQL executionStrong

✓ Validation rigorStrong

✓ CommunicationStrong

Recommendation

Strong hire

Why

You surfaced the root cause, validated thoroughly, and communicated trade-offs clearly.

See full explanation ↗

The dignity line

We evaluate what you consciously produce. Never how you type, look, or sound.

What we never do

✕No proctoring, webcam, or facial analysis
✕No keystroke or paste logging
✕No timers. Speed is never a signal
✕No hidden evaluation. If something is assessed, the screen says so

What you always get

✓Your own account, protected with MFA
✓A visible notice while you work with the AI teammate: the conversation is part of the evidence, and you can see that it is
✓The reasoning about you after every assessment. Not a score, the reasoning
✓Deletion on request: your data, removed completely from TalentOS

How your data is handled, in plain language: Privacy & data practices

How you get in

Your workspace is born when a role calls for you.

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