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Hi there 👋

I'm Daniel (he/him). I am an experienced leader in the Ops/Platform/DevOps/SRE space with a passion for people AND technology.

My Background 🕰️

My professional journey started in a classical IT operations role in 2000, managing systems for an online Bank. I've traversed through big corporates and small startups, and I'm currently working for Gini, a German FinTech, and I'm in charge of the platform and IT. My responsibility is to enable cross-functional product teams with a platform based on Kubernetes for fast and reliable delivery. Millions of people use the platform in Europe each month.

I'm passionate about ✨

  • Leadership, especially in the context of self-organization
  • coaching, growing, and enabling people
  • the cloud-native ecosystem
  • programming in Go
  • becoming a better version of myself

Technologies I 💙

  • OS
    • Server: Linux. Primarily Debian-based, but I have a seasoned history with other flavors like Gentoo, too 😏
    • Client: Apple MBP 🍏
  • Cloud Provider
    • AWS. It is my daily work, and I also had some exposure to GCP. Not used Azure yet
  • Kubernetes
    • I've been using it for years on bare-🤘 and the ☁️, and it has served me well
    • CNI: Cilium. eBPF is the future, and the stuff the folks at Isovalent do is just amazing 🍯
  • Monitoring
    • Sysdig Monitor & Secure. The products are getting better every day, and the kernel integration may really open your eyes 👀
    • Prometheus. It's the cloud-native way, and it is also nicely integrated into Sysdig 😏
  • Observability
    • Honeycomb: Delightful to implement and crazy powerful 🐝
  • Networking
    • VPN: Tailscale. Not even a question. One of the simplest and yet most exciting technologies there is
    • L2/L3: Comfortable with both
    • BGP: It can be fun. Use it primarily in bare-🤘 setups. FRRouting, kube-router & cilium work great
  • Programming
    • Golang: It has been my language of choice for quite a while now, and I've created several tools and libraries at Gini
    • Python: Mostly for more straightforward tasks and one-offs
    • Bash: You can get pretty far with it

📫 How to reach me

Daniel Kerwin's Projects

k8s-oidc-helper icon k8s-oidc-helper

Helper tool for authenticating to Kubernetes using Google's OpenID Connect

kbe icon kbe

Kubernetes By Example

nomad icon nomad

A Distributed, Highly Available, Datacenter-Aware Scheduler

puppet icon puppet

Server automation framework and application

puppet-cassandra icon puppet-cassandra

A Puppet module to install Apache Cassandra from the DataStax distribution

puppetlabs-stdlib icon puppetlabs-stdlib

Puppet Labs Standard Library module. Please submit issues at https://projects.puppetlabs.com/projects/modules/issues and not using the issue tracker on Github. Pull requests, however, are encouraged. =)

sd-agent icon sd-agent

Monitoring agent for Server Density (Linux, FreeBSD and OS X)

sensu-plugin icon sensu-plugin

A framework for writing Sensu plugins & handlers with Ruby.

tasseo icon tasseo

Real-time dashboard for Graphite

uli icon uli

My unattended linux installer

veewee icon veewee

Easing the building of vagrant boxes

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