Rich Gwilliam's digital shed
Lambda functions are a very specialized piece of web tech; when queried they spin up a virtualized server, perform their operation, return, and shut down again providing excellent value for very sporadic uses.
While working for a Unity agency, I moved their Laravel based Unity experience server - broadly analogous to a multi-player game server - onto a Lambda function from an EC2 server. While that's a stupid idea for an actual game server, it actually fit this very specific use case very well and transformed a £400 monthly bill into something like £20.
I've been using Amazon Lambda Functions since Jul 2022 (3 years).
Full-stack Developer / Devops Engineer
At Hidden, I filled the role of an API Developer as well as a Devops Engineer. I updated and expanded existing legacy code to run on AWS Lambda functions for increased efficiency, and created Jenkins build servers for the Unity development team.