Why Psychology Matters When Hiring Tech Talent
By Carla Costantini · September 20, 2026
Hiring a senior engineer isn’t just about reviewing their CV. It’s about understanding what motivates them, whether they’re genuinely interested in the stack, whether the role will keep them engaged, and whether they need a team that will challenge them professionally.
Most recruiting agencies evaluate candidates based on numbers: years of experience, specific skills, and salary expectations. The result is predictable: candidates who perform well technically but leave within a year because there’s no cultural connection or because the role didn’t match their expectations.
At PeopleFirst, we approach candidate evaluation from two dimensions. One is technical, of course. But the other is the human side: who the person is, what drives their career, how they collaborate with a team, and whether they’re at the same professional stage as your company
It takes more time, but that’s what can make the difference between a hire who stays for two years and one who stays for five.
The financial impact is real. Companies in LATAM and the United States invest, on average, between $20,000 and $40,000 in every failed hire, when you factor in recruiting, onboarding, initial compensation, and turnover costs. 30% of tech hires fail due to cultural mismatch, rather than a lack of technical competence.
Psychology in recruitment is one of the variables that can reduce the risk behind hiring decisions that carry a significant financial cost. Especially as senior talent moves more frequently than it did five years ago, cultural fit becomes a competitive differentiator.
Carla Costantini Global Talent Partner at PeopleFirst Talent Partners