IT

System Engineer
& IT Consultant

Based in Florence, Italy. Transforming IT infrastructure with modern solutions and expert guidance.

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About Me

Who I Am

I'm Giacomo Landini — Jack. Based near Florence, Italy. Sysadmin by day, adventurer by night.

What I Do

System Administrator & IT Consultant. I design and deploy infrastructures focusing on security, reliability, and automation.

What I Love

Video games, nature, trail running, Ferrari F1, cosmology, and rock music. Also coffee — lots of it.

Where I'm Going

Growing professionally, building innovative solutions with my startup JMMer, and helping others along the way.

0Years Experience
0Km Run

Strava Stats

Last runs & total distance

    View on Strava
    0CO2 Saved

    Green Commute

    Train commute CO2 savings vs driving

    Home Office
    ~4.1 kg/dayCO2 saved
    ~910 kg/yearCO2 saved
    39 km/dayround trip
    0% Uptime Goal

    What I Do

    System Administration

    From bare-metal to virtualized environments, I manage Windows and Linux servers with precision and reliability. My goal: stable, secure, and high-performing systems that just work — so you can focus on what really matters.

    IT Security

    Security isn't just a checkbox — it's a mindset. I apply proven best practices, smart automation, and proactive monitoring to keep infrastructures resilient against modern threats, ensuring peace of mind for both users and businesses.

    Network Solutions

    Every millisecond counts. I design, build, and fine-tune networks for speed, scalability, and reliability — from small business setups to complex multi-site infrastructures. Because efficiency is the foundation of everything connected.

    Recent Projects

    SmartPark

    Smart parking. Find, book, and pay — all in one tap.

    View Details

    Our startup. Tech solutions for a smarter, greener world.

    Open Website

    Beehives in Cloud

    Data-driven beehive monitoring to improve fruit crop productivity. Based on satellite analysis and on-board hardware.

    View Details

    Skills

    Systems

    • Windows Server AD, GPO & RDS environments
    • Linux Debian focused · LPIC-1 path · Hardening & services
    • Proxmox HA clusters · LXC & KVM virtualization
    • Docker Compose stacks · Containerized deploys
    • systemd Custom units · Service orchestration

    Network & Security

    • TCP/IP Subnetting, VLAN & infrastructure design
    • Zyxel ZCNA Certified · UTM, Nebula & site-to-site VPN
    • pfSense Firewall rules · OpenVPN & HA setups
    • Tailscale Mesh VPN · ACLs & custom DERP relays
    • SSH Key management · Remote access hardening

    Cloud & Hosting

    • NGINX Reverse proxy · SSL termination & load balancing
    • Cloudflare DNS & WAF · Origin certs & API automation
    • SSL/TLS Let's Encrypt · Certificate lifecycle
    • Nextcloud Self-hosted cloud · AIO & custom deploys
    • Plesk Hosting panel · Domains, sites & cert management

    Dev

    • Python FastAPI · REST APIs & async microservices
    • Bash Automation scripts · Sysadmin tooling
    • Node.js Express backends · Real-time integrations
    • Git GitLab CI · Pipelines & branching strategies
    • PostgreSQL asyncpg · Schema design & backup strategies

    Services

    • 3CX Advanced Certified · PBX design, SIP trunking & IVR flows
    • Monitoring Zabbix & N-Able · Custom alerts & dashboards
    • QNAP NAS storage · RAID & snapshot replication
    • Supabase Auth & storage · Open-source BaaS

    Automation

    • AI Tools ChatGPT & Claude · API integration & custom workflows
    • CI/CD GitLab CI & GitHub Actions · Automated pipelines
    • Discord Bot Leonhart · Commands & server automation
    • Generators Auto install & update scripts for clients

    Get in Touch

    Ready to transform your IT infrastructure?

    Or email me directly