Interview training for hiring managers

You were trained for your craft. Nobody trained you to interview.

Interviewing was supposed to arrive by osmosis: shadow a loop, copy a scorecard, hope the next hire works out. Candidates rehearse for weeks. Interviewers wing it. Then three months later comes the question every hiring manager knows: “How did I not see that in the interview?”

The signs were usually on the table. You just hadn't practiced spotting them. Interviewer training means manufacturing that regret moment safely, at the price of a mock interview instead of a mis-hire.

Workshops teach theory. ChatGPT plays along. Neither is a gym.

Shadowing is slow, irregular, and the mistakes are real hires. Interview-training workshops give you a framework and no reps. Generic AI roleplay gives you a candidate who cooperates. None of that hides a behavioral pattern from you and then grades whether you caught it.

HiringGym is interviewer skills training as reps. Every candidate secretly runs one of 16 hidden personas (The Embellisher, The Blame Shifter, The Smooth Operator) and actively masks it, the way real candidates do. You interview. You make the call. Then The Tell Report shows what was hiding.

How to get better at interviewing candidates

Reading a list of red flags helps once. Catching them live, while you are managing the clock and being charmed by the same fluency that fools everyone, is a different skill. These are the habits that move it:

1. 01

   Treat the first answer as a draft

   Fluent candidates arrive rehearsed. The useful information is usually in the second and third follow-up, not the polished opener.

2. 02

   Ask for the movie, not the poster

   Scope, numbers, names, and the exact boundary of what they did personally. Vague success stories deflate when you ask for the first commit, the teammate's job, or the date.

3. 03

   Watch what happens when you push

   Challenge a clean answer. Offer a counter-view. Ask what they would have done differently. The mask is what you hear after that, not before.

4. 04

   Grade the interview, not the vibe

   Most interviewers never get scored. Catch rate only moves when you can see what you missed and which questions would have caught it.

The last one is the gap most interviewers never close. HiringGym scores the interview you just ran, with evidence from your own transcript, so you can see the skill move.

A gym, not a course.

1. Step 1

   Pick the opening

   Choose a role and company and sit down across from a candidate built for that interview.

2. Step 2

   Interview a candidate with a secret

   Every candidate secretly runs one of 16 hidden behavioral patterns, and masks it. They're competent, likable, and they will not confess.

3. Step 3

   Make the call

   Debrief like it's real: your assessment, your concerns, Hire or No Hire.

4. Step 4

   Read The Tell Report

   The reveal: what they hid, the signals that were on the table, the questions that would have popped it, and a 6-dimension scorecard quoted from your own transcript.

Sixteen candidates you've already met.

You've interviewed these people. You may have hired some of them. In every session, one sits down across from you, and you won't know which.

The report that answers “what did I miss?”

• • The Tell Report: the persona, unmasked. The trait, the moments it nearly surfaced, and the probing questions that would have caught it.
• • Six scored dimensions, including the headline, Red Flag Detection.
• • Evidence, not vibes: every score cites lines from your own transcript.
• • Your trend: catch rate over time. Watch a skill you could never measure start moving.

Who this is for

Questions