Question 1

Data Engineer vs Platform Engineer - what is the actual difference?

Accepted Answer

Data Engineers focus on design and maintain reliable data pipelines. Platform Engineers focus on build and operate the internal developer platform. The two roles are often confused because they sit next to each other in modern delivery teams, but the day-to-day work, the success metric and the interview rubric are not the same.

Question 2

Which is easier to hire - a data engineer or a platform engineer?

Accepted Answer

Both pools are active on Haystack. First shortlists land within 24 hours of kick-off for either role. Mid-level data engineers anchor around £68k–£92k UK base, platform engineers around £80k–£108k, so total cost over an 18-month horizon is the more useful comparison than headline pay.

Question 3

Can the same person cover both data engineer and platform engineer work?

Accepted Answer

Often partially. Senior generalists carry one as their primary discipline and one as supporting, but expect a 60/40 split rather than 50/50 - the deep work in either role rarely happens in the same week. If the workload sustains, hiring one of each is almost always the better long-term call.

Question 4

What skills should I screen for in a data engineer interview?

Accepted Answer

Anchor the rubric on Python, SQL, Snowflake. We surface every Haystack profile with the specific tooling, levels and shipped-work examples so you can shortlist against a real skills bar, not buzzwords.

Question 5

What skills should I screen for in a platform engineer interview?

Accepted Answer

Anchor the rubric on Kubernetes, Terraform, Backstage. As with the data engineer role, the easiest way to compare candidates is a 90-minute paid take-home that mirrors real work - never a trivia quiz.

Question 6

Do you cover senior and lead-level data engineers and platform engineers?

Accepted Answer

Yes - the full ladder from junior through staff/principal in both. The kick-off call captures the level and shipped-work bar you need, and shortlists are filtered accordingly.

Dimension	Data Engineer	Platform Engineer
Category	Engineering	DevOps
Mid-level UK base	£68k–£92k	£80k–£108k
Senior UK base	£95k–£135k	£115k–£160k
Primary focus	Design and maintain reliable data pipelines	Build and operate the internal developer platform
Core skills	Python, SQL, Snowflake, BigQuery	Kubernetes, Terraform, Backstage, ArgoCD
First shortlist	24 hours	24 hours

Data Engineer vs Platform Engineer

Data Engineer

Platform Engineer

Data Engineer vs Platform Engineer - at a glance

Data Engineer vs Platform Engineer - common hiring questions

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