Day by Day is an independent Linux and open-source infrastructure company, founded in 2005 by Gerben Meijer. We design, modernize, migrate, automate, and troubleshoot production infrastructure: from Linux and storage to Kubernetes, OpenStack, cloud platforms, and high availability.
The work is practical and outcome-focused. We work best with clear scope, useful documentation, and a clean handover, so the operating team can run and change the result confidently.
See the services overview for the areas we work in, or contact Day by Day to discuss a concrete platform, migration, automation, or troubleshooting need.

Full NameGerben Meijer
Lives inThe Netherlands
Since 2005, Day by Day has helped organizations improve production infrastructure with Linux, open-source, cloud, storage, networking, Kubernetes, OpenStack, automation, migration, and high-availability work.
The work is practical and production-oriented: understand the risk, choose a sound path, implement the change, and leave the operating team with something they can run and change confidently.
Work usually starts with a clear platform problem or change: a migration that needs planning, automation that needs to be reliable, an upgrade that carries risk, or a production issue that needs root-cause analysis.
The goal is clear responsibility for the result: architecture that can be built, automation that can be maintained, documentation that is useful, and handover that leaves the operating team in control.