Hi, I'm Rafael Garcia
Network Development Engineer

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About

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Network Engineer with 11+ years of technical leadership experience. Expert in enterprise network design, automation, and cloud infrastructure. Proven track record of implementing scalable network solutions and leading cross-functional teams.

Reduced network incidents by 40% through proactive monitoring and automation. Improved network performance by 35% through QoS optimization and load balancing. Led successful on-prem and cloud migration of 1,000+ DNS zones with zero downtime. Developed automation framework reducing configuration time by 60%.

BGP / OSPF / EIGRP Python / Ansible Palo Alto / Aruba NAC AWS / Azure Infoblox DNS / IPAM CI/CD / IaC

Experience

Contract Network Engineer

NASA JPL, MORI Associates · Jul 2021 – Sep 2025

Developed Python and Bash automation for network infrastructure management. Executed enterprise DNS migration from BIND to Infoblox for enhanced scalability. Configured and optimized BGP, OSPF, and EIGRP routing protocols for Deep Space Network. Implemented Palo Alto firewall policies and VPN configurations for secure partner access. Collaborated with international partners on MPLS implementations and WAN optimization. Maintained 99.9% network uptime for mission-critical communications infrastructure.

Network Administrator / Communications Chief

United States Marine Corps · 2012 - 2020

Led network operations supporting 25+ missions with zero communication failures. Managed secure communications infrastructure using cryptographic systems. Trained and mentored 200+ Marines in network operations and cybersecurity. Implemented network security protocols achieving 100% compliance ratings. Awarded Navy Achievement Medal for exceptional leadership and technical expertise. Coordinated multi-site network deployments across international locations.

Projects

Network Operations Lab

Multi-node Linux infrastructure with microsegmented network zones, centralized Loki logging, Prometheus metrics, and automated alerting. PA-220 firewall, managed switching, and Tailscale overlay across a distributed fleet.

Linux Infrastructure Monitoring Zero Trust
Live Site

GuardQuote

Full-stack ML application with secure authentication, role-based access, and application performance monitoring. Built and hosted on my own infrastructure.

Machine Learning Full Stack Security
Live Demo

SentinelNet NIDS

Production network intrusion detection system. Python feeder on RISC-V edge hardware captures live flows via SPAN mirror and classifies them through a K3s inference cluster. 1M+ predictions on real traffic with Prometheus and Grafana alerting.

Python Network Monitoring Kubernetes
GitHub

What I Bring

Operational Experience

I've kept networks running for deep space missions with 99.999% uptime requirements and managed communications infrastructure in austere military environments. I mentor engineers, write clear operational procedures, and stay calm in an on-call incident at 2am.

Automation First

I automate everything I touch. Production Python and Bash for firewall audits, configuration validation, network monitoring pipelines, and deployment workflows. Everything on this page runs on infrastructure I built, maintain, and monitor myself.

Accomplishments

View All on Credly

Contact

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