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Sorin Ioana

System Administrator L2

Infrastructure & Security Timișoara, Romania

System Administrator and IT Infrastructure Consultant with 11+ years across MSP and enterprise environments — VMware/Proxmox, Windows Server & Active Directory, networking, security, backup and monitoring. Focused on automation, standardization and end-to-end delivery.

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Sorin Ioana — System Administrator L2
LOC: TM-RO · ROLE: SYSADMIN-L2 ONLINE

11+

Years experience

100+

Clients managed

30+

EU projects

20+

Docker containers

01 —

Stack

Technical skills

The tools I rely on daily to keep infrastructure reliable, secure, and automated.

Virtualization & Servers

VMware ESXi / vSphereProxmox VEDELL PowerEdgeData center operations (rack, UPS, redundancy)

Networking & Security

Cisco CatalystMikroTik RouterOSUbiquiti UniFiVLANsIPsecWireGuardOpenVPNFortiGatepfSenseSentinelOne EDRPalo Alto (basic)

Systems & Windows Infrastructure

Windows Server 2016/2019/2022Active Directory (users, OUs, GPO)DNSDHCPFile ServerMicrosoft 365Exchange Online / on-premisesDebian/Ubuntu Linux (basic)

Monitoring & Backup

Veeam Backup & ReplicationUptime KumaGrafanacronrsyncRetention policiesAlerting

Containers & Automation

DockerPortainern8nHome Assistant

Cloud & AI Tools

CloudflareSSL/TLSLet's EncryptClaude Code CLIOllama (local LLMs)
02 —

Career

Professional experience

A progressive 11-year path across infrastructure, leadership, and consulting.

CV — English (PDF) CV — Romanian (PDF)

System Administrator

Jul 2017 – Present

FASTBIT SRL — Timișoara

IT Consultant — EU-funded Digitalization & System Administrator L2 Jun 2023 – Present

  • Advised 30+ companies participating in EU-funded digitalization projects.
  • Conducted IT audits and business needs assessments to define technical requirements.
  • Designed technical solutions and budgets, coordinated vendors and procurement, and delivered projects end to end.
  • Aligned technical requirements with beneficiary company management and financial consultants.
  • Continued to administer infrastructure across the MSP client portfolio in a System Administrator L2 capacity.

System Administrator L2 Sep 2021 – Jun 2023

  • Managed end-to-end infrastructure across a 100+ client MSP portfolio, covering servers, networks, backup, monitoring, security, and data center operations.
  • Operated VMware ESXi/vSphere, Windows Server (2016–2022), and Microsoft 365 environments for organizations ranging from 10 to over 200 users.
  • Configured and administered MikroTik and Ubiquiti UniFi networks, including site-to-site VPNs, VLANs, and firewall rules.
  • Administered Active Directory, Group Policy, DNS, DHCP, and file services across client environments.
  • Implemented and operated FortiGate, SentinelOne EDR, and Veeam for firewall, endpoint, and data protection.

Team Leader — Level 1 Support Aug 2018 – Sep 2021

  • Led a team of five IT specialists, covering operational planning, task prioritization, escalations, and mentoring.
  • Provided advanced L2 support and coordinated complex incidents escalated by the team.
  • Standardized workflows and operating procedures to improve response times and service quality.

L1 Support Technician Jul 2017 – Aug 2018

  • Diagnosed and resolved hardware, software, and connectivity incidents for MSP clients.
  • Installed and configured workstations, peripherals, and applications for client users.
  • Escalated complex incidents and documented solutions for reuse across the support team.

IT Technician

Jul 2015 – Jul 2017

HQ Level Business and Services — Timișoara

  • Installed and configured networks, including switching, routing, and structured cabling.
  • Maintained servers, workstations, and network equipment.
  • Provided hardware and software support for clients.
  • Deployed and maintained video surveillance systems and network infrastructure for new clients.

Data Entry Operator

Apr 2014 – Dec 2014

Data Group Int — Timișoara

Core strengths

  • Technical leadership and mentoring for support teams
  • Communication with management, vendors, and consultants
  • Process standardization and end-to-end delivery

Languages

  • English Intermediate (B1–B2)
  • Romanian Native
03 —

Homelab

Projects & experiments

Personal projects and homelab experiments where I test, learn, and automate.

Homelab Infrastructure

Active

Personal homelab on a dedicated DELL PowerEdge server — a testing, learning and automation environment.

  • Proxmox VE with multiple Linux and Home Assistant VMs
  • 20+ Docker containers via Portainer: Nginx Proxy Manager, Grafana, n8n, Uptime Kuma, Ollama, UniFi Console
  • Monitoring and alerting with Uptime Kuma and Grafana
  • Automated backups for 19+ Docker volumes, with retention and notifications
Proxmox VEDockerPortainerLinux

Automation & AI Integration

Active

AI-powered automation pipelines for content, monitoring and remote control.

  • Workflows automated through n8n and a Telegram bot
  • AI tools: Ollama (local LLMs), Groq API, Whisper speech-to-text, Claude Code CLI
  • Remote control, notifications and AI pipelines
n8nTelegram BotOllamaGroq APIWhisperClaude Code

Self-Hosted Services

Active

A complete self-hosted stack replacing cloud subscriptions.

  • Services published securely through Cloudflare Tunnels, SSL/TLS and DNS management
  • Reverse proxy with SSL for every service
  • Centralized monitoring and alerting
Nginx Proxy ManagerCloudflareGrafanaUptime Kuma

Personal Website

Active

Portfolio and CV website — the one you're looking at right now.

  • Bilingual (EN/RO), statically generated
  • SEO: hreflang, sitemap, structured data
  • Self-hosted fonts, zero trackers, fast
AstroTailwind CSSCloudflare
04 —

Let's build something reliable.

Looking for a system administrator, infrastructure consultant, or a hand with EU-funded digitalization? I'd love to hear from you.

Send an email +40 755 013 333