NDA, Consulting in DevOps/SRE

• • Set up the Kubernetes cluster and moved bare metal hosted services to it, providing a greater reliability and observability thereto • Set up Rancher RKE with autoscaling to provide extra capacity to the aforementioned cluster in a time of need • Revamped the organization’s build system on Jenkins, decreasing build times for certain projects up to 70% • Restructured the build process of a project’s frontend application using docker, which allowed for consistent builds and a more versatile testing approach • Administrated network infrastructure based on Mikrotik devices • Kept up to date the Infrastructure-as-Code repository using Ansible

• • Deployed a Kubernetes cluster with a CEPH storage backend and migrated the website hosting infrastructure to it, increasing fault tolerance and uptime to 99.95% • Implemented an automated testing and vulnerability pre-check infrastructure for user websites, rolling back to the previous CEPH snapshot in case of exploitation or failure, which improved the stability of websites in the Arab region and eliminated instances of compromised websites. • Migrated multiple company servers, previously scattered across various low performance hardware, to a large Proxmox-based server platform, increasing the stability and performance of individual components by 85% and eliminating the need for maintenance and support of diverse server hardware. • Established an automated product build process, implementing a testing-stage production workflow using Jenkins and GitLab CI. • Containerized final products that did not require strict hardware binding into Docker containers, standardizing infrastructure deployment across various Linux servers. • Managed a team of two employees, overseeing task management and priority distribution. • Implemented a secure access control system, enabling access management with just a few clicks or commands. • Automated the deployment of products requiring host systems using Ansible. • Secured infrastructure, including RKH and SELinux configuration. • Monitored vulnerabilities and applied necessary fixes. • Identified and closed a vulnerability in a Mikrotik-based network that allowed unauthorized access and switching to developer mode. • Selected hardware components for high-performance server builds • Set up infrastructure monitoring using Prometheus and Grafana, integrating alert notifications into Slack and Telegram.

• Linux system administration.

• Automated product deployment using Ansible.

• Containerized core products using Docker.

• Built and administered industrial-grade servers in an in-house data center, implementing virtualization with ESXi/Proxmox based on project requirements.

• Monitored and mitigated newly discovered vulnerabilities.

• Managed network infrastructure using Mikrotik.

Administration of workstations running Windows, Ubuntu, and FreeBSD.Administration of servers based on Windows Server and Ubuntu.Rewriting a corporate application using Qt.Mikrotik administration and network management.Maintenance, diagnostics, overclocking, and hardware procurement.

Administration of workstations running Windows, Ubuntu, and FreeBSD.Administration of servers based on Windows Server and Ubuntu.Rewriting a corporate application using Qt.Mikrotik administration and network management.Maintenance, diagnostics, overclocking, and hardware procurement.