Hi, I'm John Ghatas

Operations Engineer skilled in RHEL systems, infrastructure automation, and on-prem deployment. Experienced in managing homelabs and networking with pfSense, OPNSense, and UniFi, as well as Terraform, Packer, Proxmox, Debian, and Kubernetes (learning and hands-on experience).

Explore my latest projects showcasing my expertise in CI/CD Pipelines, Ansible and Docker.

Dutch flag
Amsterdam, Netherlands

Experience

  • CI/CD Engineer @Keylane

    August 2021 - Present | Utrecht

    As a Medior CI/CD Engineer, I’m responsible for lifecycle management, process optimization, and routine maintenance. I also help ensure clients’ platforms run reliably and oversee company-wide changes when required.

  • Full Stack Developer @StatlerBI

    March 2021 - June 2021 | Amsterdam

    For StatlerBI I have developed a full-stack solution to process data and make it accessable to internal tooling. Addtional applications were developed later in the lifecycle to make the output visible to employees who needed access.

  • Intern DevOps @Unc Inc

    September. 2020 ‑ February. 2021 | Amsterdam

    During the closing internship, research is done on what is needed to add automatic deployment to critical environments. A new workflow of deploying Drupal applications is implemented with excellent legacy support and proper handling of all crucial edge cases.

  • Full Stack Developer - Intern @Hybriq

    September 2018 - February 2019 | Amsterdam

    In my period at Hybriq I helped build a questionnaire bulding system built on the React.js

  • Employee Central Student Administration @University of Amsterdam

    May 2018 - August 2018 | February 2019 - August 2019 | Amsterdam

    During my time at the University of Amsterdam’s Department of Student Administration, I contributed to the student vetting process and supported various administrative workflows with accuracy and attention to detail.

Certificates

  • LFS158 @Linux Foundation

    November 2025 | Introduction to Kubernetes

    Completed an introductory Kubernetes course with advanced aspect to the material taught, supplemented with practical experience gained from deploying (production) applications to my personal Kubernetes cluster(s).

  • LFS157 @Linux Foundation

    November 2025 | Introduction to Serverless on Kubernetes

    Completed Introduction to Serverless on Kubernetes taught by the Linux Foundation.

  • LFS101 @Linux Foundation

    June 2025 | Introduction to Linux

    Completed the LFS101 Course taught by the Linux Foundation.

Projects

  • Homelab Platform Engineer @Home

    August 2022 - Present | Onsite

    Built a Proxmox-based virtualized environment with automated VM deployments using Ansible, Packer, and Terraform. The infrastructure runs behind a dedicated firewall powered by a Sense OS for secure and segmented networking.

  • Developer @CERN

    February 2020 - July 2020 | Remote

    Collaborated in a team of eight on a project commissioned by CERN, delivering a new iteration of the ALICE experiment logbook. The project involved modernizing an existing product with an updated framework and interface, while integrating Docker to achieve OS-agnostic deployment and improved portability.

  • Authorization Portal Blockchain - Full Stack Developer @CGI

    September 2019 - February 2020 | Rotterdam

    Developed a blockchain-based authorization portal enabling civilians to manage assigned tasks. Worked in a two-person team, responsible for the frontend and blockchain communication layer. This project also marked my first hands-on experience with Linux system management.

Education

  • BSc Software Engineering @Amsterdam University of Applied Sciences

    2015-2021 | Amsterdam

    Studied IT with a focus on Software Engineering, while also exploring related fields such as Scientific Software and Big Data through coursework and external projects.