freiberufler I scale IT solutions to power up to billion dollar businesses auf

I scale IT solutions to power up to billion dollar businesses

zuletzt online vor 7 Tagen
  • 105‐125€/Stunde
  • 10409 Berlin
  • auf Anfrage
  • hu  |  en  |  de
  • 14.01.2022


As the lead maintainer of Rex, the friendly automation framework, I offer professional services directly around the project, as well as in relevant related fields such as DevOps, SRE, software delivery, test automation, and Perl development.

Ich biete

  • Amazon Web Services (AWS)
  • Ansible
  • DevOps (allg.)
  • Docker
  • Dokumentation (IT)
  • IaaS (Infrastructure as a Service)
  • IT-Beratung (allg.)
  • IT-Systemmanagement
  • Konfigurationsmanagement (KM)
  • Kontinuierliche Integration (CI)
  • KVM (Kernel-based Virtual Machine)
  • Linux (Kernel)
  • PaaS (Platform as a Service)
  • Perl
  • Portage (für Gentoo)
  • PostgreSQL
  • Projektleitung / Teamleitung (IT)
  • Rex

Projekt‐ & Berufserfahrung

Information Technology Infrastructure Consultant
a Dutch e-commerce logistics solution provider, Berlin
11/2021 – offen (3 Monate)

11/2021 – offen


Taking the customer's IT infrastructure to the next level. May include traces of terabyte-scale PostgreSQL databases on Heroku.

Eingesetzte Qualifikationen

Amazon Web Services (AWS), PaaS (Platform as a Service), PostgreSQL

software delivery consultant
industrial automation, plant engineering and const, Berlin
9/2021 – 10/2021 (2 Monate)

9/2021 – 10/2021


Maturity assessment of software delivery processes.

Eingesetzte Qualifikationen

Continuous Delivery (CDE), Git, Testing (IT)

senior platform engineer (Festanstellung)
heartbeat medical GmbH, Berlin
5/2021 – 10/2021 (6 Monate)

5/2021 – 10/2021


Forming a dedicated platform team from scratch, assessment of process maturity, implementing foundational work organization elements and domain best practices.

Eingesetzte Qualifikationen

Ansible, Docker, Dokumentation (IT), KVM (Kernel-based Virtual Machine), Projektleitung / Teamleitung (IT)

senior cloud engineer (Festanstellung)
x-ion GmbH, Berlin
2/2021 – 4/2021 (3 Monate)
IT & Entwicklung

2/2021 – 4/2021


Automating OpenStack operations in a multi-cluster environment.

Eingesetzte Qualifikationen

Cloud (allg.)

IT infrastructure consultant
price comparison company, Spain
11/2020 – 2/2021 (4 Monate)
IT & Entwicklung

11/2020 – 2/2021


Improving the reliability and performance of the IT infrastructure.

Eingesetzte Qualifikationen

Container Management, elasticSearch, Linux (Kernel)

senior DevOps engineer
search engine company, USA
9/2020 – 10/2020 (2 Monate)
IT & Entwicklung

9/2020 – 10/2020


End-to-end designing and prototyping a web application to gather user feedback.

Eingesetzte Qualifikationen

Architektur (allg.), Git, Perl, Testautomatisierung

IT infrastructure architect
a hosting provider, Niederlande
5/2020 – 5/2020 (1 Monat)
IT & Entwicklung

5/2020 – 5/2020


Designing the IT infrastructure of the customer to be optimized for business continuity through zero-downtime upgrades.

Eingesetzte Qualifikationen

KVM (Kernel-based Virtual Machine), Linux (Kernel), Storage

cloud platform engineer (Festanstellung)
inovex GmbH, Karlsruhe/Berlin
8/2017 – 4/2020 (2 Jahre, 9 Monate)
IT & Entwicklung

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.

Eingesetzte Qualifikationen

Linux (Kernel), Cloud (allg.), Systems Engineering, Ansible, Puppet

system administrator (Festanstellung)
adjust GmbH, Berlin
8/2014 – 7/2017 (3 Jahre)
IT & Entwicklung

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.

Eingesetzte Qualifikationen

Linux (Kernel), Systems Engineering


Certified NETASQ Administrator
September 2011


Civil engineering / geoinformatics
Ort: Budapest
IT engineering
(not finished)
Ort: Budapest


Perl, Rex, Gentoo, OpenStack, Elastic stack

Über mich

I'm an experienced Linux engineer with a strong focus on software development. My main interests are the DevOps culture, infrastructure automation and automated testing. On top of those, I find system integration projects highly rewarding.

I'm also a free/libre/open source software activist contributing to various projects, and organizing Open Source Contribution meetups regularly. I offer consulting, training and sponsored development services for the (R)?ex automation framework as a core developer.

I'm an autodidact, who enjoys learning new things out of curiosity. I'm honored to be a teacher sometimes, but I always consider myself as a student. From time to time, you can find me speaking at different conferences and workshops. I have a few posts published on my personal blog, on, and on, but most of the content I create are documentation for various projects.

Persönliche Daten

  • Ungarisch (Muttersprache)
  • Englisch (Fließend)
  • Deutsch (Grundkenntnisse)
auf Anfrage
  • Europäische Union
15 Jahre und 3 Monate (seit 10/2006)
7 Jahre


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