server up · all systems operational

davidalvarezp

Systems Administrator specialized in cybersecurity, infrastructure automation, and web development.
"Making things work without anyone noticing."

0+ Years experience
0+ Certifications
0+ Projects delivered
0% Coffee-powered

Featured Projects

A selection of production systems and tools I've designed, built, and maintained.

CyberSec · Pentesting

WebSec Audit

A modular, extensible Bash framework for comprehensive web application security assessments. Automates 15+ attack surface modules, generates structured logs, and produces professional reports in HTML, JSON and TXT.

Bash XSS Nmap Sqlmap Nikto SSRF Debian
SysAdmin · SaaS

ClickDeploy

Automated SaaS deployment platform using Docker containers. Provisions WordPress, Moodle, and Nextcloud instances via webhooks and Bash scripts, with TrueNAS storage and Netdata monitoring — zero human intervention.

Docker Nginx MariaDB Bash TrueNAS Netdata Certbot

Technical Profile

Cybersecurity

  • Vulnerability auditing & pentesting
  • Threat monitoring & SIEM
  • Hardening & access control
  • Network security & firewalls

SysAdmin

  • Linux & Windows Server admin
  • Docker · Nginx · automation
  • Monitoring & performance
  • Backup & disaster recovery

Web Dev & SEO

  • HTML · CSS · JavaScript
  • WordPress & PHP
  • Technical SEO & Core Web Vitals
  • Performance & accessibility

Digital Strategy

  • Content creation & editing
  • Analytics & campaign optimization
  • Video production & streaming
  • Social media management
// available for hire

Need a security-focused SysAdmin?

Security audits, infrastructure design, web development, and more. Let's build something solid together.

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From the Blog

All posts ↗
SysAdmin
Advanced hardening guide for linux servers.
2025
SysAdmin Networking
What is DNS (Domain Name System)? - How DNS works.
2025