What to look for when you are hiring a platform engineer

As engineering organisations mature, platform engineering has become a deliberate investment rather than a tooling decision. The brief attached to it has changed with that.

The three outcomes it is funded against

Internal developer platforms, infrastructure automation and standardised practices exist to reduce complexity while teams build faster.

Organisations fund that work because complexity accumulates as an engineering function scales, and left alone it slows everything down.

The investment gets judged on three things:

  • Developer experience, how much friction sits between an engineer and shipping.
  • Delivery speed, across teams rather than one.
  • Operational reliability, holding steady as the organisation grows.

The tool stack underneath is not on that list.

What to change in the interview

Stop assessing platform candidates primarily on tool familiarity. It tells you almost nothing about whether someone built something other teams relied on, or maintained something for themselves.

Rewrite one question so it asks for a platform or system the candidate built that other engineering teams adopted, and what measurably got faster or more reliable as a result.

If the answer stays at the level of which tools they used, that is a tooling answer.

Press further.

If they can walk you through what got faster, what got more reliable, and for whom, that is the signal the brief is asking for.

The distinction that is easy to miss on a CV

Two engineers can look similar on paper. Only one is the hire most organisations mean.

The first has kept infrastructure running smoothly for their own team. That is good, necessary work.

The second has built a platform other engineering teams adopted and came to depend on.

They built beyond their own remit, made deliberate calls about what to standardise, and carried other teams’ delivery speed and reliability in their design decisions.

Businesses are looking for the second. Scalable platforms, better engineering efficiency, systems that hold up as the organisation grows.

Ready to talk about your next engineering hire? Get in touch.

Liam

Technology & Software Engineering Recruitment

Last updated: August 2026

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