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RetailPublished February 27, 2026

John Lewis Partnership

Measuring the value of a developer platform

John Lewis evolved its platform metrics beyond onboarding speed to assess developer experience, operational health and the practical value delivered to product teams.

February 27, 2026 4 min read

The challenge

What needed to change

The retailer needed to ensure its internal digital platform was genuinely reducing developer friction across dozens of product teams, rather than simply measuring platform adoption.

The approach

How the team responded

The team combined DORA metrics with developer feedback and introduced automated Technical Health checks. Small jobs evaluate more than 35 measures including Kubernetes practices, security and operational readiness.

Key takeaways

Measure stakeholder value, not just platform activity.
Make service health visible and actionable for individual teams.
Use a mix of operational data and developer feedback.

Original source

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Google Cloud customer roundup, February 2026

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