Technical proof
Compact examples of hands-on work across infrastructure operations, automation, and troubleshooting. These are supporting proof items, not customer testimonials or claims beyond their documented scope.
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FeaturedHands-on Proxmox VE administration across VM lifecycle, Linux guests, storage and network integration, troubleshooting, guest-agent checks, logs, and layered host, storage, and guest diagnosis.
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FeaturedDeployment and troubleshooting of multi-container Linux application stacks using Docker, Compose, Portainer, persistent volumes, networks, health checks, ports, logs, databases, and service dependencies.
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FeaturedDesigned and built an AI-assisted operational workflow that separates diagnostic access from production-change authority.
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FeaturedHfield Systems own platform and reference implementation: a lightweight website and portal architecture designed around Cloudflare free-tier services.
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Staged migration of a virtualized TrueNAS workload between network paths using additional tagged virtual interfaces while preserving a legacy path until reachability and dependencies were verified.
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Detailed preflight and migration design for a stateful containerized credential-management application involving MariaDB, cryptographic application state, ownership concerns, reverse-proxy dependencies, isolated restoration, checksums, backups, and rollback planning.
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Self-hosted service publishing using Caddy, DNS and TLS routing, Cloudflare Tunnel, and separated public-ingress and application-backend roles.
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Webhook-driven workflow integration using Nextcloud Talk for human interaction and approval, n8n for orchestration, local model integration, controlled diagnostics, and signed structured responses.
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Built a custom shell dashboard for immediate operational visibility during storage and media workloads, covering CPU, available memory, network traffic, per-disk activity, ZFS ARC statistics, pool health and capacity, and top processes.
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Audited and hardened an emergency credential-export workflow using PowerShell, Passbolt tooling, DPAPI-protected local state, KeePass and KDBX validation, staged files, and atomic replacement concepts.
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Diagnosed severe Linux root-filesystem capacity pressure, identified space consumers, reclaimed capacity, and checked filesystem, kernel, service, and Docker state after recovery.
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Prior professional field experience troubleshooting distributed technical systems involving industrial communications, Modbus-connected equipment, managed Ethernet networking, customer and vendor coordination, technical documentation, SOPs, training, and project execution.
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Prior hands-on Cisco VoIP and networking exposure alongside industrial Ethernet and networking coursework.
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