How to verify technical skills before hiring

Verifying technical skills before hiring means asking the candidate to perform the specific task of the role under the same conditions for everyone, instead of relying on the résumé or the certificate. A technical skill is verified by seeing it in action on something similar to what the person will do in the position. Everything else is inferring from paper.

There’s one question the résumé doesn’t answer, no matter how polished it is: can this person do, today, the technical task the role requires? The certificate says they learned it at some point. The list of jobs says where they’ve been. But neither one shows you the person doing the work. And that’s exactly the information you need before hiring.

Why the certificate doesn’t verify the skill

A certificate or a completed course says one valuable but limited thing: the person had access to a body of knowledge at some point. They don’t say whether they can apply it today, in the specific task of your role, under the real conditions of the work. The distance between “they studied it” and “they can do it now” can be enormous, and it’s exactly the distance you want to close before hiring.

The same goes for the experience listed on the résumé: “three years in the position” isn’t the same as “does the task well.” To verify the technical skill, you have to move from the statement to the demonstration.

How to verify a technical skill in a comparable way

1. Identify the real task of the role. Don’t verify “knowledge of X” in the abstract, but the specific task the person will do: solving a certain type of case, completing a certain exercise, applying a certain criterion. The more the test resembles the real work, the more useful the signal.
2. Use a technical test that reproduces that task. One of the 36 technical tests in the catalog, or whichever matches the specific skill, gives you evidence of execution and not of declaration.
3. Apply the same test to everyone. Verification is only useful for comparison if all candidates go through the same thing. Different tests for different people give results that can’t be compared with one another.
4. Leave the technical interview for going deeper. With the skill already verified, the conversation stops being spent on confirming the basics and is used to understand the how and why of the result.

The technical skill isn’t the whole candidate

Verifying the technical skill answers a key question —“can do the task”—, but not all of them. Performance in the role also depends on how the person behaves: how they work in a team, how they handle pressure, how they communicate. That’s why it’s worth complementing the technical verification with the assessment of soft skills and, depending on the role, with a cognitive measure. The combination of intelligence, competencies, and technical skill gives a more complete signal than any of the three on its own.

Verifying technical skills doesn’t make the decision automatic: it gives you comparable, reliable evidence about one part of the candidate. The rest is completed by the other signals and the judgment of the team, which still makes the decision.

In short

Verifying technical skills before hiring means asking the candidate to perform the specific task of the role under the same conditions for everyone, instead of relying on the résumé or the certificate, which say they had access to a body of knowledge but not that they can apply it today. The method consists of identifying the real task of the position, using a technical test that reproduces it, applying it equally to all candidates so you can compare, and reserving the technical interview for going deeper on the result. The technical skill answers “can do the task,” but not all of performance: it’s worth combining it with soft skills and, depending on the role, with a cognitive measure, for a more complete signal. Verification adds comparable evidence; the final decision still belongs to the team. To see the technical tests that verify a role’s skill, explore the library.