Christos Papageorgiou
Principal Networking Specialist at Cloud Software Group
Greece
Summary
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RockstarChristos Papageorgiou is a Principal Networking Specialist based in Greece with over a decade of hands-on experience designing, automating, and migrating carrier-grade and cloud-native networking platforms. He has led large automation efforts—building Terraform and Python/JavaScript toolchains that made NetScaler deployments repeatable and cut assessment delivery time by 75%—and was recognized as a global MVP for engineering innovation. His background spans operator-scale mobile gateways, cloud and hybrid monitoring, and Kubernetes networking, with practical experience migrating F5 and Kemp estates to Citrix NetScaler. An active contributor to community DevOps tooling, he has improved Puppet modules for Zabbix and OpenVPN to support multiple OS and product versions, demonstrating attention to cross-version compatibility and testing. Comfortable at the intersection of product, services, and open source, he combines academic research experience with startup product-building (Go, serverless, React) to turn complex networking requirements into repeatable, production-ready solutions.
11 years of coding experience
15 years of employment as a software developer
Github Skills (18)
puppeteer10
puppet10
zabbix10
configuration-management10
schema-design10
openvpn10
database-design10
db-schema10
database-schema10
schema10
mysql9
postgresql9
rspec9
devops9
testing8
Programming languages (11)
Github contributions (5)
voxpupuli/puppet-openvpn
Aug 2021 - Jun 2022
OpenVPN module for puppet including client config/cert creation
Role in this project:
DevOps Engineer
DevOps EngineerContributions:12 reviews, 44 commits, 45 PRs in 10 months
Contributions summary:Christos's contributions primarily focused on enhancing the module's compatibility with various operating system versions, including Ubuntu 20.04, Debian 11, and supporting the use of different versions of easy-rsa. They modified specifications files and the Facter definitions to account for version-specific differences in how OpenVPN is configured and managed. Additionally, the user performed code cleanup by running auto-corrections using rubocop and changing package ensure from present to installed.
openvpnpuppetlinux-puppet-moduleconfigcreation
voxpupuli/puppet-zabbix
Jan 2021 - Dec 2022
Puppet module for creating and maintaining zabbix components with puppet.
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:90 reviews, 57 commits, 44 PRs in 1 year 11 months
Contributions summary:Christos focused on database schema adjustments and configuration of the Zabbix monitoring system. They implemented changes for different Zabbix versions, specifically handling database schema adaptations for 3.x, 4.x, and 5.x versions. The user also addressed frontend configurations, made fixes to repository configurations and acceptance tests, and added support for Zabbix 6.0. Their contributions involved modifications across multiple files, indicating involvement in various aspects of the project.
windows-puppet-modulepuppetpuppet-modulelinux-puppet-modulezabbix
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