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// INFRASTRUCTURE · NETWORKS · DEVOPS

Systems that don’t fall over,
no matter how hard the world insists.

Senior System Administrator — available from October 2025

Nineteen years running mission-critical environments: high-availability clusters on vCenter, Hyper-V and Proxmox, migrations to Azure, GCP and Oracle, and perimeter security for clients such as CEPSA, OTIS, HITACHI and the Ministry of Defence.

$ whoami
francisco — sysadmin / infra / devops · madrid
$ uptime –lab
proxmox 3-nodes [OK] · pfsense+suricata [OK] · wazuh/graylog [OK] · gitlab-ci [OK]

Portrait · 2026

Portrait of Francisco Angulo

Madrid, SpainEN · ES · ITLinkedIn ↗

19+

Years of experience

3

Clouds (Azure · GCP · Oracle)

500+

Users supported

3

Professional languages

// 01 · ABOUT

Who I am

I am Francisco Angulo Amezcua, a senior system administrator whose career is built on one simple idea: infrastructure should be boring for the people who use it and interesting for the people who run it. I started in 2005 keeping NH Hotel Group’s multi-site network alive through their hotel acquisitions —mass migrations with real guests inside— and since then I have moved through electronic security in Italy, AV production and eleven years of system administration and DevOps at Greenpeace, Arrow Electronics and Imagar.

I thrive where systems, networks and automation meet: enterprise virtualisation, secure perimeters, backups that actually restore and CI/CD that removes manual toil. Outside work hours I run a personal lab in continuous production —Proxmox HA, pfSense with IDS/IPS, a Wazuh/Graylog SIEM, GitOps with GitLab and an AI agent platform— because the best way to stay sharp is to operate every day.

Working philosophy

  • Observe before touching: metrics, logs and alerts first.
  • Backups are proven by restoring, not by copying.
  • Least privilege and minimal exposed surface.
  • Document every incident; never let the same failure come free.
  • Automate anything that hurts twice.

// 02 · EXPERTISE

What I do well

E1Systems

Windows ServerLinux · CentOS/Debian/Rocky500+ user performance

E2Infrastructure

Proxmox VEVMware vSphere/vCenterHyper-VHA Clustering

E3Networking

CiscopfSenseUniFiHAProxy · SquidDNS · VLANs

E4Security

Fortinet · FortiAnalyzerCSAASSuricata IDS/IPSiptables

E5Virtualisation & Cloud

AzureGoogle CloudOracle CloudGCP APIs

E6Automation · DevOps

GitLab CI/CDDockerAnsibleBash · Python

E7Monitoring

ZabbixWazuhGraylogGrafana

// 03 · PROJECTS

Personal lab

Self-hosted projects running in continuous production. Not client work: this is my technical gym, described without sensitive data.

LAB-01

High-availability Proxmox VE cluster

Problem: consolidate critical services with real fault tolerance.
Work: 3 nodes, ~40 VMs/LXC, HA with quorum, 3-2-1 backups verified by periodic restores.

ProxmoxNFSREST API

LAB-02

Edge network with IDS/IPS

Problem: segment a network with enterprise-grade security.
Work: pfSense + Suricata in IPS mode, UniFi VLANs, WireGuard, DNS filtering and active threat blocking.

pfSenseSuricataUniFiWireGuard

LAB-03

SIEM with response

Problem: know what happens in the infrastructure before it hurts.
Work: Wazuh + Graylog + Zabbix correlating events from 15+ hosts, Telegram alerts and automatic runbooks.

WazuhGraylogZabbix

LAB-04

GPU media pipeline

Problem: process terabytes of video without frying the CPU.
Work: automated ingest, renaming, NVENC/QSV transcoding distributed across Tdarr nodes and delivered via Plex.

Tdarr v2NVENC/QSVPlexUnraid

LAB-05

AI agents operating infrastructure

Problem: turn an LLM into a useful, safe operations collaborator.
Work: OpenClaw platform with specialised agents (infra, security, media, home automation), MCP, Qdrant vector memory and incident-driven GitOps.

OpenClawMCPQdrantGitLab

LAB-06

Home automation with custom interfaces

Problem: domotics usable by the whole household, not just the engineer.
Work: Home Assistant + Zigbee/ESPHome, bespoke Lovelace dashboards and an M5Stack robot as the voice interface.

Home AssistantESPHomeZigbeeESP32

// 04 · EXPERIENCE

Career

NOV 2021 — SEP 2025

Senior System Administrator · DevOps

Imagar — Madrid

  • HA clusters on vCenter, Hyper-V and Proxmox; cloud migrations to Azure, GCP and Oracle.
  • Enterprise backups with 99.99% availability for critical immutable data.
  • CSAAS perimeter security for multinational infrastructure; Windows Server for 500+ users.
  • Projects for CEPSA, OTIS, HITACHI and the Ministry of Defence.

ProxmoxVMwareAzureGCPGitLabDocker

DEC 2020 — NOV 2021

Senior System Administrator

Arrow Electronics — Spain

  • PMO plus design/rollout of mission-critical IT projects with VMware (ESXi, vSphere, clustering).
  • Incident supervision (HW/SW/comms) and continuous improvement of enterprise infrastructure.
  • Security: FortiAnalyzer, FortiGate, iptables. Networking: Cisco, UniFi, Squid, HAProxy.

VMwareFortinetCiscoGCP

APR 2017 — NOV 2020

Senior System Administrator

Greenpeace — Spain

  • Mission-critical support to 100+ client companies on VMware and Google Cloud APIs.
  • Continuous improvement of client-specific IT processes.
  • Security and networking: Cisco firewalls, pfSense, iptables, Squid, routing.

VMwareGCPCiscopfSense

APR 2016 — APR 2017

System Administrator

Imagar — Spain

  • System administration and infrastructure support for client environments.

WindowsLinuxNetworking

JUN 2015 — SEP 2016

Technical AV Operator

Fescinal — film festivals (Madrid, FISAHARA, Altea)

  • Digital projection booth operation and technical management of high-profile events.

AVProduction

SEP 2011 — JAN 2013

Security Systems Technician

Vasto Vigili — Italy

  • Enterprise CCTV and access-control installation; 24×7 maintenance of critical infrastructure.

CCTVAccess controlIT

SEP 2008 — JAN 2011

IT Entrepreneur · Solar Business Owner

Ladder S.L. — self-employed

  • Photovoltaic franchise: acquisition and management of solar farms; IT sales and P&L ownership.

BusinessIT services

MAR 2005 — SEP 2010

Network Systems Administrator

NH Hotel Group — international chain

  • Multi-site networking and 24×7 critical maintenance; mass migrations after hotel acquisitions.

NetworkingWindowsMigrations

// 05 · EDUCATION & CERTIFICATIONS

Education

FORMAL EDUCATION

Vocational Degree, Systems

I.E.S. Virgen de la Paloma — Madrid

DEVOPS

DevOps CI/CD Course

Universidad Tech

GitLab · CI/CD

MICROSOFT

MCSA

Microsoft Certified Systems Administrator

retired by Microsoft in 2021

2012

ITIL v3

Sermicro

expired — reference training

// 06 · CONTACT

Let’s talk

Need someone who makes infrastructure simply work?

EMAIL[email protected]

LINKEDIN/in/francisco-angulo-amezcua

LOCATIONMadrid, Spain · open to remote

LANGUAGESEN fluent · ES native · IT fluent

CVOn request: drop me a line