Networking / Infrastructure
Network Core Refresh
A structured placeholder for switching, routing, VLAN segmentation, firewall policy, and documentation work across a resilient network core.
VLANsRoutingFirewall
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Hi, my name is
Kevin Castellanos.
Network engineer and infrastructure professional designing resilient systems, secure homelabs, and polished cloud-connected workflows.
Routing
Cloudflare
Proxmox
Automation
Selected Work
Infrastructure projects with a clean operator mindset.
Portfolio placeholders shaped around the systems Kevin works with: networks, homelabs, Linux, Cloudflare, and repeatable automation.
Homelab Projects
Homelab Control Plane
A clean project slot for lab architecture, monitoring, backup strategy, service inventory, and repeatable rebuild notes.
MonitoringBackupsDocs
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Cloudflare / Web Hosting
Cloudflare Edge Site
A polished web-hosting case study area for Pages deployments, DNS, HTTPS, redirects, headers, and edge performance work.
PagesDNSHTTPS
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Linux / Proxmox
Proxmox Linux Stack
A focused placeholder for virtualization, Linux hosts, service isolation, storage planning, and practical operational runbooks.
ProxmoxLinuxRunbooks
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$ ansible-playbook deploy.yml
ok: [proxmox-node-01]
changed: [cloudflare-dns]
ok: [linux-router]
Automation / Scripting
Automation Toolkit
A project card for scripts, repeatable deployments, config checks, DNS tasks, and the small automations that remove toil.
ScriptsCLIRepeatability
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About
I like infrastructure that feels calm, observable, and built to last.
My work sits at the practical intersection of networking, Linux systems, virtualization, edge hosting, and automation. I care about clean documentation, predictable operations, and technical decisions that make systems easier to maintain under pressure.
Network Engineering
Designing practical networks with clear segmentation, predictable routing, and security-minded operating habits.
RoutingVLANsFirewallsDNSTroubleshooting
Systems & Virtualization
Building dependable Linux and Proxmox environments with clean service boundaries and recoverable operations.
LinuxProxmoxBackupsMonitoringStorage
Cloud & Web Hosting
Publishing fast, secure sites with Cloudflare Pages, DNS, HTTPS, redirect hygiene, and cache-aware delivery.
CloudflarePagesHTTPSHeadersSEO
Automation & Documentation
Turning repeated operational work into clear scripts, checklists, and runbooks that make maintenance easier.
ScriptingGitRunbooksConfig ChecksCI/CD
Experience
Resume-style focus areas.
A concise view of the infrastructure responsibilities and operating habits this portfolio is designed to represent.
Current Focus
Network Infrastructure
Routing, segmentation, firewalling, and DNS
Hands-on infrastructure work centered on reliable connectivity, clear network boundaries, and practical troubleshooting.
Plan and document network changes with rollback paths.
Improve visibility into network and service health.
Keep security, reliability, and maintainability in balance.
Systems Practice
Linux & Proxmox Operations
Virtualization, services, storage, and recovery
Operating Linux and virtualization environments with attention to repeatability, isolation, backups, and service ownership.
Build service inventories and host-level runbooks.
Separate workloads with clear resource and network boundaries.
Document recovery steps before they are urgently needed.
Cloud Delivery
Cloudflare Web Hosting
Pages, DNS, HTTPS, security headers, and performance
Deploying lightweight sites and edge-hosted experiences with clean DNS, strong defaults, and fast static delivery.
Configure production-ready static exports for Cloudflare Pages.
Apply redirect, caching, and security header hygiene.
Keep hosting workflows simple enough to repeat confidently.
Workflow
Automation & Scripting
Small tools that remove repeated manual work
Creating pragmatic scripts and operational helpers that make infrastructure tasks easier to audit and repeat.
Automate routine checks and deployment steps.
Use Git-friendly project structure and documentation.
Prefer readable tooling that future operators can understand.
Contact
Let us talk through the system you are building.
Available for infrastructure conversations, network troubleshooting, homelab architecture, hosting setups, and automation projects.
Static, fast, responsive, and ready for Cloudflare Pages.