Hire on evidence, not on résumés.

Adaptive AI interviews and hands-on labs — returning an auditable shortlist your engineering managers can trust.

Rio · your AI interviewer

Meet Rio

The sharpest AI interviews in hiring

Rio runs every first-round interview — and generates each follow-up question from the candidate's last answer.

No scriptsNo leaked question banksNo two interviews alike

Built to be un-cheatable

Three layers between a claim and a hire.

01 · Hands-on labs

Candidates build. They don't recite.

Every candidate gets a live environment and a real brief: route traffic, wire services, survive failures. The score comes from what runs, not from what they say ran.

CDN
DNS
Load balancer
API gateway
Service pods
Database
Run checks passed

02 · Evidence trails

Every score traces back to evidence.

Eight dimensions are scored per interview, and every number links to the moment it was earned. Open any score and read the exact transcript line behind it.

Interview reportCloud & DevOps · Round 1
Incident diagnosis
82/100
Evidence · transcript 14:32
“I'd rule out the load balancer first — its health checks pass, so the 502s originate downstream.”
Runbook execution
74/100

03 · Adaptive depth

Questions that follow the candidate.

Each follow-up is generated from the last answer, one layer deeper every time. Rehearsed candidates run out of script; real ones keep going.

recio.

Your checkout service intermittently returns 502s behind the load balancer. Where do you start?

Candidate

Target-group health checks pass, and the app logs are clean around each spike.

recio.

If both pass, the 502s start below the gateway. What in the pod lifecycle would produce them under load?

From candidate list to shortlist in four steps.

1

Add candidates

Import a CSV or sync your ATS.

PR
Priya RamanPlatform engineer · 6 yrs
Queued
TF
Tomás FerreiraSRE · 4 yrs
Queued
AO
Amara OkaforDevOps engineer · 7 yrs
Queued
2

Adaptive interview

A conversation that digs into what they've actually run.

recio.

Walk me through your last sev-1 — what failed first?

Candidate

A regional cache fleet. We failed reads over before writes…

3

Hands-on lab

A live environment, scored on what gets built.

Lab run · candidate-07live
$provision environmentdone · 1.2s
$route traffic via gatewaydone · 3.8s
$inject failure: kill pod-2recovered · 9.4s
checks passed · 12/12
4

Evidence report

A ranked shortlist with proof behind every score.

Shortlisted · evidence attached
1
Amara Okafor
82
2
Priya Raman
77
3
Tomás Ferreira
71

Built for a world where candidates use AI.

Recio assumes every candidate has AI open in another tab — and verifies anyway.

Liveness check · passed
Liveness

Nothing to install

Browser-based liveness detection runs quietly during the interview. No plugins, no lockdown client.

Claims on résumé12
Verified in interview11
Flagged for review1
Authenticity

Résumés, cross-checked

Claimed experience is verified against how the candidate actually performs before the shortlist is built.

No overlay signature detected
Detection

Posture against overlays

An actively maintained detection posture against AI answer-overlay tools, updated as they evolve.