I design, secure, and automate IT infrastructures using Linux, Python, and Docker.
Focused on building resilient, monitored, and production-ready systems.
GitHub: alvarezdevnet | LinkedIn: José Álvarez
- Network & Security: Cisco IOS-XE, Wireshark, Nmap, Network Hardening, DNS Security. (Unbound)
- Automation: Python (Netmiko, Requests, Dotenv), Bash Scripting, Git Workflow.
- Infrastructure: Linux (Ubuntu 24.04 LTS), Docker & Docker Compose, Raspberry Pi, ESP32.
- Observability: Prometheus, Grafana, Node Exporter, MQTT, Node-red, InfluxDB.
- Dev Tools: PyCharm Professional, Anaconda, Jupyter Notebook, VsCode.
Status: Active Development / Phase: Metrics Injection
- Enterprise-grade monitoring system for a hybrid environment (Raspberry Pi + Desktop + Laptop).
- Stack: Docker, Prometheus, Grafana.
- Impact: Real-time telemetry and resource abstraction using environment variables for portable deployments.
- Implements strict Separation of Concerns (Code vs. Persistence) and secure Git hygiene.
Status: Active Development
- Automated configuration and telemetry retrieval for Cisco devices using Python and Netmiko.
- Impact: Standardization of compliance checks and reduction of manual CLI intervention.
- Python, Netmiko, RegEx, SSH Hardening.
Status: Completed & Documented
- Automated hybrid backup infrastructure with 3-2-1 strategy: Local → Pi Storage → Encrypted Cloud Copy.
- Impact: Ensured data integrity and zero-knowledge encryption for critical files.
Status: Completed & Documented
- Private recursive DNS resolver (Pi-hole + Unbound) to eliminate ISP tracking and ad-telemetry.
- Impact: Network-wide security hardening and DNSSEC validation.
Formal Education: SMR (Sistemas Microinformáticos y Redes) - EU EQF Level 4 (In Progress)
Certifications:
- Google Cybersecurity Professional Certificate V2
- CCNA: Introduction to Networks
- CCNA: Switching, Routing, and Wireless Essentials
- Linux Essentials (LPI / Cisco)
- Junior Cybersecurity Analyst Career Path
- Network Technician Career Path
Languages: Spanish (Native), English (B1 Intermediate - Technical proficiency)
Looking for roles in NOC, Junior SysAdmin, or IT Operations.
I bring a security-first mindset and the ability to automate repetitive tasks to improve operational efficiency.