DevOps Engineer · Scriptics Decisions SRL
Feb 2023 - Present
Sibiu, Romania

Maintaning and deploying services on a large scale of servers:

• Nagios Core as monitoring system for all servers
• Migrated GNU/Linux (Ubuntu/Debian, CentOS/RHEL) servers to our infrastructure for large scale businesses
• Migrated websites using different CMS: Wordpress, TYPO3, WHM/cPanel or custom.
• hardened NGINX and HTTPD for security, reverse proxies, etc.
• Maintaining servers for businesses
• Hypervisor deployment, migration, maintenance on Proxmox VE
• Automated backups using Proxmox BS
• Created numerous scripts for maintenance and automated tasks that use Cron
• Migrated DBs using MySQL and MariaDB
• Implemented a Greenbone in our infrastructure to scan vulnerabilities.
• Implemented Grafana in our infrastructure with PNP4Nagios to get graphs for our monitoring system
• Automatic Nagios deployment with Ansible
• Written Nagios NRPE Plugin alternative w/o SSL for legacy OS'
• Docker Swarms with Traefik as a load balancer and other custom scripts for deployment and synchronization for zero downtime.
• Automated Proxmox VE Backup extraction to retrieve certain data through mounting the QEMU SCSI drives as loopback devices, rearraging the LVM. Proxmox VE uses proprietary standards such as VMA and ZST.
• Automated Proxmox BS Backup extraction through Proxmox BS API, as our backups use indexes for incrementing over last backup.
• Migrated infrastructure to client's AWS.
• Automated security and uptime reports for clients, written in Python using Greenbone’s and UptimeRobot’s API
• Maintaining AWS Infrastructure: EC2, CloudFront, RDS, etc.
• Terraform deployments both on hypervisors and AWS
• Implemented internal Vaultwarden
• Implemented internal PGP key server (Hagrid, based on Sequoia PGP)
• Internal networking between VMs using the hypervisor for low latency.
• InnoDB optimizations for best perfomance.
• CI/CD Pipelines: Drone (Starlark/YAML), GitLab Runner
• Advanced Dockerfile builds to reduce footprint

Information Technology Operations · Continental AG
Jul 2022 - Oct 2022
Sibiu, Romania

Key responsibilities:

• System deployment: Install debug and configure operating systems (Windows and Linux) on various laptops, desktops or virtual machines
• Software deployment: Install debug and configure different software across the environment.
• Provide Technical support and Incident Management.
• Hardware issues: Debug and fix different hardware issues within the clients devices(laptops, desktops, ...etc.)
• Scripting and programing: Basic scripting and automation tasks (Powershell, Bash, C#...etc.)

GSM/IT Tehnician · GSM & Auto La Tae SRL
Jul 2016 - Jun 2020
Curtea de Argeş, Argeş, Romania

Key responsabilities:

• Troubleshooting phones, tablets, consoles, but mostly PCs and laptops
• Installing and debugging software on various hardware and VMs
• Installing and configuring a wide-range of OS (Windows, macOS, Linux)
• Flashing firmwares on mobile devices using the manufacturer's tools
  (e.g. for Samsung devices, Odin) or third-party solutions(e.g. Furious-Box)
• Modifying the firmware(e.g. unlocking bootloaders, unlocking the region
  locks for certain SIM carriers, bypassing FRPs, etc.)
• Debugging and fixing diverse hardware issues on a wide range of
  devices.