Platform Engineering ROI: What it costs to build your own platform
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Platform engineering ROI analysis is directly actionable and strategic for the reader's focus.
Building an internal developer platform (IDP) the way most enterprises do requires 60 engineers and $7.5M annually in payroll, totaling $37.5M over five years — a cost typically hidden across multiple engineering cost centers. The CNCF platform reference architecture implies seven product teams (infrastructure, operations, deployment, runtime/middleware, database, security, developer enablement), each with 7–9 engineers plus scrum masters and product owners. In contrast, buying a commercial platform reduces headcount significantly because teams operate rather than build, and avoids the unaccounted 'shadow platform engineering' cost of one or more developers per app team doing glue work.