Joshua Puetz / Healthcare IT · Networking · AI applications

The problem isn’talways whereyou first see it.

I’m Joshua Puetz. In healthcare IT and networking, I kept seeing issues arrive as “network problems” when the cause was somewhere else. I started building tools to make it easier to see what was actually happening.

01 / Selected work

A closer look.

Wireless investigations, survey comparisons and a workspace for working with files alongside an assistant. Each story includes the decisions and checks behind the build.

Infrastructure / Local AI

Wireless Observability

Local lab · three verified live runs

A local model correlates real alerts across storage, virtualization and applications, then refreshes its investigation as new evidence arrives.

PrometheusGrafanaPythonOllamaQEMUGarageOpenEMR
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Recorded local lab / 2026-10-26
AlertFresh evidenceRevised investigation
Selected readings before and after the deliberately changed lab fault
Recorded checkFirst reportFresh report
VM can executeNoYes
Storage checkPassedFailed
Application readyFailedFailed

Same failed application check.
Different next investigation.

Controlled fault change · 3/3 live runs verified · human review required

Wireless / Measurement tools

Calibrate Ekahau

Verified sample · live collection not yet tested

A Python tool that compares Wi-Fi survey readings with controller records by location, flags missing matches and produces a workbook to check before the next measurement.

PythonCisco RESTCONFCSVopenpyxlStatistical analysis
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Verified synthetic sample / 2026-10-26
Survey pointsController samplesInspectable report
Recorded synthetic comparison summary
Locations compared8 / 13
Locations left out5
Median reading difference-4.00 dB

See what was compared.
See what was left out.

Generated readings · controller − survey · not a calibration correction

AI workspace / Application development

GPTable

In development · authenticated workflow verified

A workspace where an AI response becomes editable notes. Keep the source, add your own work and inspect the next proposal before applying a change.

Next.jsTypeScriptFastAPIPostgreSQLPython
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GPTable / Backend workflow · 2026-10-27
RequestManual editReviewed change
6 saved filesSource + 5 notes
2. Design Alternativesv1 → v2 → v3
Reopen saved versionSame saved content

Keep the files.
Keep working.

13 checks · actual UI captures · real sign-in · PostgreSQL · fictional brief

02 / A little context

Look one layer deeper.

I’ve supported Windows systems, compared wireless surveys with controller records and brought network telemetry into monitoring tools. I’m still interested in the same question: what’s really happening here?

Lately, I’ve also been working with local models and building interfaces where I can inspect a suggestion, edit the output and return to saved work.

03 / Say hello

Let’s talk.

Email me about a role, a project, or something you’d like to explore.

Get in touch