George Papathanail, PhD

Working as a DevOps Engineer and Research Engineer on the Research and Collaboration Department on the following EU-Funded Research projects: – ExtremeXP: Acted as Integration Leader, coordinating the end-to-end framework deployment and improving interoperability. – Sunrise6G: Implement a telemetry stack using Prometheus and Thanos, deploy MlOps tools (Kubeflow, MLflow) (https://sunrise6g.eu/) – ETSI Open Operator Platform: Module leader on the OOP initiative. Design and development of the Open Expose Gateway (https://labs.etsi.org/rep/oop/code/open-exposure-gateway). Responsible for design, deployment, and maintenance of Kubernetes-based infrastructure (MicroK8s clusters) supporting development, testing, and experimentation across multiple EU research projects.

Working as a freelancer DevOps Engineer and researcher, on the Horizon Europe research project NEPHELE - A lightweight Software Stack and Synergetic Orchestration framework for the next-generation Compute Continuum. - Kubernetes development cluster implementation. - Kubernetes API extension by implementing a CRD in order to deploy resources for Time-Sensitive Networking. - Qos using tc stack of Linux, for latency-sensitive applications running on the edge. https://nephele-project.eu/

Working close with R&D department in order to improve Software Processes and Operations. - On-Premise, Hybrid, and Azure Kubernetes Cluster Provisioning. - Azure DevOps administration & troubleshooting for various pipelines. - Using Terraform for updating or provisioning various Azure resources like AKS ACR, VMs, etc. - Using Ansible Tower in order to implement automation for clients' SSL certificate updates. - Using Zabbix for infrastructure monitoring

Leading new research efforts, projects, and collaborations in the area of edge computing and network slicing domain. Participated in two research projects: 1. MESON: optiMized Edge Slice orchestratiON (project code: T1EDK-02947): ▪ Design and implement the MESON architectural framework ▪ Implement virtualized network functions using Click ▪ Levaraging NVF MANO platforms http://meson-project.gr/ 2. COSMOS project: Utilization of 5GINFIRE's Network Function Virtualization capabilities and facilities to provide an Image Recognition / Augmented Reality Service which is to be used in touristic places of interest. In order to achieve this, the issue of load balancing among on-device, edge-based and cloud-based computing needs to be addressed effectively. ▪ Image Recognition Using Keras/Tensorflow ▪ Development of a service that exposes an endpoint to the image recognition functionality ▪ Profiling/Stress Testing of service ▪ Bundling of Service and composure of Network Service Descriptor ▪ OpenStack (DevStack) deployment

Service Orchestration Architectures for Network Edge

Courses among others: 1) Introduction to information systems 2) Analysis and Design of information systems 3) Databases 4) Java