Network Administration
Routing, switching and secure connectivity from campus core to warehouse floor.
- Cisco routing & switching 80%
- VLANs, ACLs & 802.1x 88%
- DNS, VPN & IP services 86%
- UniFi SDN & PFSense 84%
I solve problems and help people through building safe, fast, and efficient infrastructure.

IT Specialist & Network Engineer
I’m Gentman Tan, your friendly I.T. specialist with 6+ years of experience planning, installing and configuring computer and networking systems. Years of consulting taught me to be fluent across the whole I.T. stack, and comfortable moving between networking, systems and software; whatever the problem demands.
My computer science degree gives me a deeper grasp of the data structures and algorithms underpinning the software I deploy, and an appetite for continual learning. Whether it is Cisco VRF segmentation, NixOS reproducibility or a SvelteKit + PostGIS app on Kubernetes, I care about the whole lifecycle: build it safely, automate it, then prove it works.
Deep in the packet path, comfortable in the pipeline.
Routing, switching and secure connectivity from campus core to warehouse floor.
Endpoint management and self-hosted platforms that stay reproducible.
Shipping full-stack services with infrastructure as code and observability.
From self-employed consulting to campus-scale infrastructure.
Florida International University
Logic Pro, Corp.
Sharing the tools that get the job done.
Campus parking platform, built to scale.
Full-stack SvelteKit + PostGIS application serving campus events, permits and location-based parking wayfinding, deployed to Azure Kubernetes Service.
Digital signage that people can actually read.
Replaced an aging Genetec signage plugin with headless-browser web templates showing live occupancy across 20+ outdoor signs on campus.
Operating system as code.
Declarative, reproducible system configuration — my daily driver, servers and services defined in Nix flakes and version-controlled.
Verifiable knowledge through industry standard certification
CompTIA · 2025
CompTIA · 2025
CompTIA · 2025
Cisco · In progress