independent IT cost-performance expert

8/2017 – 4/2020

I helped inovex GmbH to open a new revenue stream while reducing IT infrastructure costs.

On the technological level it means a heavily integrated, turnkey solution to roll out OpenStack installations from scratch, complete from bootstrapping on bare metal, through fully-automated provisioning, to deploying log analytics, monitoring and metrics collection with a single push of a button.

I also helped to enable the company's customers to gain new IT capabilites through automation of datacenter operations. It means building an inventory based on NetBox, provisioning VMware virtual machines with Terraform, and automating deployment with Ansible. All those elements are also integrated together with GitLab CI pipelines for continuous integration and delivery for infrastructure.

Openvpn, VPN, Agile Methodologie, Ansible, Cloud (allg.), Continuous Delivery, DevOps (allg.), Git, Iaas, Configuration Management, Continuous Integration, KVM (Kernel-based Virtual Machine), Linux (Kernel), Paas, Puppet, Server-Monitoring, Systems Engineering, Test Automation

8/2014 – 7/2017

My first job was to introduce infrastructure automation from scratch, using Rex in a Gentoo-only bare metal environment. It is powering a billion dollar business by now.

My responsibilities also involved to design and build a high performance ELK stack (processing 300k+ events per second, with total data size over 1 PB), and to maintain and scale high performance monitoring systems (Graphite+Grafana for a similar workload).

I also kickstarted weekly "Friday talks" as an internal knowledge sharing platform, maintained the company's tech blog, organized meetup events, and gave talks about some parts of the technology stack at various conferences.

Git, Agile Methodologie, Infrastrukturarchitektur, Configuration Management, Continuous Integration, Linux (Kernel), Perl, Portage (für Gentoo), Server-Monitoring, Systems Engineering, Test Automation