From one of our hackathons was born BotKube Project (
https://github.com/infracloudio/botkube ) which was developed by our engineers and community over the last 2 years. When we started developing BotKube’s Microsoft Teams integration, another project was born - Go SDK for Teams (
https://github.com/infracloudio/msbotbuilder-go ). We are also the second largest contributor as a company to Fission - a Serverless framework for Kubernetes (
http://github.com/fission/fission). Another time an engineer working with a telecom company added support for 128bit tracing ID in Jaeger client. These are just some examples - and there are many more - do make a point to ask the engineers you talk to about more open source work we do.