Sean OMeara

Freelancing around Berlin for various clients.

Heavy use of Terraform (AWS and GCP), Kubernetes, and various CI/CD systems.

Kubernetes training

Worked on a Edge Computing platform that serves ~400 billion requests/day

SRE for various systems, including the global stats and logging pipeline

Heavy use of Terraform in AWS and GCP

Heavy use of configuration management systems (Chef)

Participated in 24/7 on-call

Product owner and primary engineer for chef-cookbook Github org

Advocate for TDD and reusability via the Custom Resources pattern

Authored Test Kitchen plugin enabling rapid development and end-to-end PR testing with Travis and Docker

Probably more stuff

Early employee role. A blend of technical evangelism, competitive technology research, sales engineering, a lot of training, and a bit of actual consulting.

Moved to Community team when we started doing contracting.

Deployed systems metrics collection, identified memory leaks, IO contention, and swapping

Modeled application stacks in Chef.

Trained staff in Chef basics and infrastructure best practices

Distributed team. Managed custom IaaS environment.

Data center deployments (Centos, Puppet)

Distributed team. Bare metal environment

Remote data center deployments and machine management (Debian, Puppet)

Common FOSS suites - Apache, MySQL, PowerDNS, Jetty, Nagios, Cacti.

Post-acquisition systems integration

Managed infrastructures with CFEngine, ISConf and structured shell scripting

SSO with Windows, Linux, Solaris with AD, MIT kerberos, OpenLDAP, and Perl

Linux, Solaris, Windows, Irix, FreeBSD OpenBSD, combination locks

NFS, NIS, Samba, packet filtering with ipchains.