Gee Cert provides a command line tool that can be used by your developers to acquire an OAuth 2.0 Identity Token from Google Apps / G-Suite and then exchange this for a short-lived SSH certificate, suitable for use with existing SSH clients and servers.

By making it easy for your developers and operational teams to use short-lived certificates for SSH, you are able to reduce the risk posed by compromised/stolen devices, and can better reason about how your team are connecting to your servers.

Known alternative implementations

Teleport, offered by Gravitational, are also doing very interesting things in this space.