In this guest blog post, Marcus Hallberg and Attila Dulovics, senior security engineers at Spotify, share a Tines workflow they built to create identity federation between GCP and AWS. As modern organizations continue their journey into the cloud, they face the complex reality of a mix of cloud providers and on-premise infrastructure. This often happens due to acquisitions being made, necessary partner integrations, or other business and technical requirements that create a multi-cloud setup over time.