Platform engineering is the discipline of designing and building self-service internal developer platforms that abstract away infrastructure complexity and accelerate software delivery.
Platform engineers build and maintain internal developer platforms (IDPs) that abstract infrastructure complexity. Instead of every development team learning Terraform, Kubernetes, and CI/CD from scratch, they interact with a curated platform that provides self-service capabilities.
DevOps is a cultural movement focused on collaboration between development and operations. Platform engineering is the discipline of building the tools and platforms that make DevOps practices scalable across an organization.
A small startup might practice DevOps without a dedicated platform team. As organizations grow, platform engineering becomes essential to avoid every team reinventing the same infrastructure patterns.
Effective platforms are measured by developer satisfaction, time-to-first-deployment for new services, and reduction in infrastructure-related support tickets. The best platforms feel invisible—developers focus on their applications while the platform handles the rest.
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