Product Engineering
Purpose-built applications for logistics financial audits, medical supply lot tracking, and workshop management.
Full-Stack Product Engineer & Solutions Consultant
Juan Karlo "JK" de Guzman | Designing, building, and operating purpose-built business applications, self-hosted AI model serving infrastructure, rootless Podman Quadlets, and technical operations.
AI Infra & Serving
PyTorch and vLLM model inference, Bifrost Go proxy router, cloud GPUs, and big-AGI side-by-side evaluation.
Platform & Linux
Fedora CoreOS host operations, rootless Podman Quadlets, SELinux enforcement, Caddy Server, and Bunny.net Anycast CDN.
Systems & Ops
Business workflow discovery, SOP development, Notion workspace systems, and high-uptime managed infrastructure.
Portfolio
Active Projects & Systems
Production-grade systems spanning custom business platforms, AI model inference clusters, and immutable server architecture. Click any project for a deep-dive case study.
Infrastructure
Production Server Topology
Select any infrastructure layer below to inspect live container configurations, systemd Quadlet definitions, and security policies.
Methodology
Engineering Philosophy
Architecting reliable systems through systematic log inspection, boundary stress testing, and root-cause isolation.