Felix Geisendörfer

I’m a software engineer living in Berlin, Germany with my partner and two kids.

Since 2021, I’ve been working on Datadog’s Continuous Profiler product with a focus on Go profiling. I also work on OpenTelemetry, internal cost efficiency and various other things.

Before that, I spent 6.5 years building a factory traceability system for Apple. Your Apple device probably has a barcode from it.

Prior to that, I co-founded and bootstrapped Transloadit into a profitable business.

I’ve also created a lot of open source over the years. Most notable are my contributions to the Go runtime (50+ patches, e.g. frame pointer unwinding) and being one of the first Node.js core contributors (100+ patches, also created node-mysql and node-formidable).

Back when drones were fun and harmless, a few friends and I organized NodeCopter, a hackathon for programming flying robots with JavaScript. It inspired about 30 satellite events and some academic literature.

Last but not least, I enjoy playing competitive beach volleyball on a weekly basis.

You can also find me on Bluesky, LinkedIn, Twitter, GitHub, YouTube or contact me directly.