Case Study: Siemens achieves an open-source DevOps culture and scalable CI/CD with GitLab

How Siemens created an open source DevOps culture with GitLab

Siemens, a global technology powerhouse with roughly 20,000 developers working across many autonomous business units, needed a single platform to foster collaboration, transparency, and proper code management across its fractured, federalized structure. To create an open source DevOps culture and a single source of truth for code, Siemens adopted GitLab (SCM, CI/CD, and DevOps) as the company-wide platform for code collaboration and CI/CD.

GitLab delivered a hosted DevOps platform (including GitLab CI runners) that scaled to 40,000+ users and is run on AWS with Infrastructure-as-Code. The GitLab solution enabled rapid onboarding and collaboration, reduced shadow IT, and improved stability—yielding measurable outcomes such as 6.4M+ builds per month (>210,000/day), 0 support requests to GitLab, and 4+ production deployments per month—while a lean, distributed team of eight manages the service and drives an open source-first workflow.

Siemens

Fabio Huser

Software Architect