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Yes. Huge AWS -> GCP migration.

Why? Incoming CTO signed a massive GCP deal probably because it was marginally cheaper than AWS (while probably ignoring the migration costs).

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Same thing happened to my old company (large insurance company). Moved from Azure to AWS + Terraform/Kubernetes because of cost and "cloud independent" nature of Terraform. The whole IT department spent 2+ years moving hundreds of (relatively modern + legacy) services and applications. Some services couldn't move because they were managed by third-party. I am pretty sure they didn't factor in the cost of migration.

Always look for kickbacks if there are cases where the company ends up being out more money all-in. These decisions should not have been made in this way, and it isn't always incompetence that drives this.

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