The Engagement and Messaging team at Disney+ is responsible for engaging with subscribers through e-mail, push, and in-app messages. The team is also responsible for the messaging associated with Disney+ co-viewing feature GroupWatch.

For background, GroupWatch is a feature that gives subscribers the ability to co-view any series or movies from Disney+ with their family and friends. For GroupWatch messages, we used AWS Lambda, but needed to minimize latency during cold starts to ensure people in groups were in-sync. To overcome the cold starts, we wanted to migrate some functionality to AWS ECS Fargate.

When switching to ECS Fargate for…

Avni Patel

Software Engineer who likes Cloud and Devops

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