Intro

Inventor and consultant in Sierra Vista, Arizona — 29 years in product development and programming, from security and infrastructure to embedded products. Current focus: MediAlert, a bedside wellness platform with mmWave radar, wearable integrations, and Alexa smart-home alerts.

Background: Texon LP, NASA security consulting (contractor), six granted U.S. patents on hybrid building networks (VUTP), and hands-on IoT prototype development. See work · ESP32 cam · Contact

AI Workflow Automation

I build agent-backed automations that do the repetitive research and drafting inside a workflow — while a person approves every consequential step. AI leverage without handing over the wheel: a human in control, an audit trail, and nothing sent or changed without a yes.

What I build

  • Multi-agent pipelines — research → score → rank → draft, coordinated from Python
  • Desktop apps a non-coder can run — one window, plain buttons, no terminal
  • Integrations to your systems — Gmail, CRMs, databases, the web — via official APIs and MCP
  • A human approval gate on every step that matters

How I work

  • Intake — we map one real process: trigger, inputs, the 2–6 stages a person does today, systems, approval points, and output
  • Build — each stage becomes one gated agent step
  • Integrate — your systems become tools the agent can use
  • Ship — a desktop app your team runs, plus a short runbook

Case study — multi-agent job-search pipeline

A chain of agents scouted live postings, scored each against a real profile, ranked them, and drafted tailored cover letters — with a human approving every step. In one real run it evaluated 8 roles (fit-scored 43–74 with itemized gaps), shortlisted the top 3, and produced 5 same-day submitted applications. Uploads, CAPTCHAs, and the final submit stayed manual by design.

Career Copilot — roles table, Job Scout + Hunter, and yes/no approval step

Full write-up: the case study on GitHub.

Where it applies

  • Sales — research leads, score fit, draft tailored outreach → you approve and send
  • Operations — triage inbound email/tickets, draft responses → a person confirms
  • Reporting — gather inputs, draft the weekly or board report → an owner signs off

Built on the Cursor SDK · open-source examples: cursor-agent-lab · workflow-app-starter

Apps

Tools I’ve built on this stack — open source on GitHub, with desktop builds — plus the reusable template I use to build them for clients. Want a custom app for your team, or to license one of these? Get in touch.

Career Copilot (Windows)

Career Copilot — roles table with fit scores, Job Scout + Hunter, yes/no workflow

Job Scout + Hunter in one desktop app: live search (LinkedIn, Indeed, and more), a roles table with fit scores, matchers against your résumé, ranked shortlist, and cover-letter drafts — you only say Yes or No. Includes Email Check (read-only Gmail) and Task Assistant. Bring your own Cursor API key; 14-day trial with CCOP-TRIAL.

  • Job Scout — LinkedIn/Indeed seeds, live board search, fit table
  • Matchers + ranker — honest APPLY/MAYBE/SKIP scoring and top picks
  • Local reports — markdown saved on your machine; nothing auto-submitted

$79 one-time license · open patterns on GitHub. Same Windows build free on GitHub (MIT); Buy on Gumroad for checkout and license key by email.

Workflow App Starter

Workflow Copilot launcher running a report workflow

A reusable template for shipping agent-backed workflow apps to a client or team: define the steps, wire in their systems, and hand over a desktop app a non-coder can run. This is the spine behind custom builds.

Job Inbox Checker (Windows)

A small standalone app that scans your Gmail for real replies to job applications — interviews, recruiters, rejections — and skips the “we received your application” noise. Read-only: it can never send, delete, or change your mail. A one-time Google connection is required on first run.

Python BackUp (Windows)

Python BackUp desktop app showing a completed folder backup with live log output

A standalone folder-backup app — copy on demand or on a schedule you set (every N days at a clock time). Incremental copies skip files that already match the destination. CSV logs and a live console show what ran. No cloud account required.

  • Backup Now — one-off copy; source and destination only
  • Schedule — interval in days + 24-hour clock time (e.g. 09:00)
  • Incremental — unchanged files are skipped on repeat runs
  • CSV logs — success and error trails under logs/

Same Windows build on GitHub (MIT, free). Buy on Gumroad to support ongoing development — you get the same zip with SETUP.txt inside.

MediAlert

MediAlert (medialert.net) is a contactless bedside wellness platform for caregiver peace of mind — passive mmWave radar at the bed, plus a Health Board that pulls in rings, watches, blood pressure, temperature, and smart-home alerts.

The bedside unit uses 60 GHz mmWave radar (Seeed MR60BHA2) and an ESP32-C6 to detect presence, estimate breathing and heart rate, flash a local NeoPixel alarm, and send staged SMS via Twilio when configurable conditions are met.

Visit medialert.net

Health Board

Live dashboard at medalert.stephenv.net — Oura ring connected today; one view for vitals, trends, and recovery signals.

MediAlert Health Board overview - vitals grid and recovery summary Health Board recovery trends - improving and declining signals Health Board weekly charts - heart rate, readiness, sleep, activity Health Board chart detail - trends over time

Visit medalert.stephenv.net

Bedside hardware

MediAlert prototype - Seeed XIAO ESP32-C6 and MR60BHA2 mmWave kit

What it does

  • Passive presence and vitals sensing at the bedside (no camera, no microphone)
  • Person-present gating to reduce false alarms from an empty bed
  • NeoPixel local alarm plus LAN dashboard for status and cancel
  • Wi-Fi setup portal and Twilio SMS escalation to primary and family contacts
  • Health Board at medalert.stephenv.net — Oura ring live today; watches, BP cuffs, thermometers, and more on the same dashboard
  • Alexa & Matter — whole-home announcements via Echo Routines (ACK application submitted)

Connected devices

  • Smart rings — Oura (heart rate, SpO₂, sleep, readiness)
  • Smart watches — activity, sleep, and heart rate via health APIs
  • Blood pressure — cuff readings for trend and alert context
  • Temperature — body or room sensors for fever and comfort monitoring
  • Alexa & other smart home — voice announcements and automation when alarms fire

Early access / sign up

Join the MediAlert waitlist for caregiver early access, Health Board updates, and prototype demo invitations. Not a medical device — wellness / demo interest only. Prefer the public site: medialert.net.

Submissions go to the same inbox as Contact. No spam — early-access notices only.

Status

Working engineering prototype — flashable firmware, web UI, alarm logic, Health Board, and documentation. Not a cleared medical device; wellness / demo use with appropriate oversight.

Seeking licensing, acquisition, or co-development with a strategic OEM or health-tech partner.

medialert.net · Project: med-alert-prototype · Sierra Vista, AZ

Demo

County Prospects ranks improved White County properties that are more likely than a typical hold to be offered for sale within a year, then prints the owner letter. The score orders your time. It is not a claim that a named owner will sell. White County is ready now. Other counties can be added.

Work

Selected work from 29 years across embedded products, patented network systems, and consulting.

MediAlert

Contactless bedside wellness platform — medialert.net, project details, or visit the Health Board (rings, watches, BP, temperature, Alexa).

ESP32 Cam

Seeed XIAO ESP32-S3 Sense live stream — see camera details (password required).

Service Health Monitor

Dependency-free Python / Tkinter dashboard that watches sites, APIs, and devices with live status cards, internet speed tests, and Twilio SMS alerts — open source on GitHub (MIT, unit tests, CI, packaged Windows build).

Patents — VUTP hybrid networks

Co-inventor on six granted U.S. patents (Orbit-Matrix / Global Communications) covering hybrid command management over existing building wiring.

Patent links open Google Patents in a new tab. This page stays open — use Close (top right) or the browser Back button to return.

Consulting

Security and solutions consulting — NASA (contractor), Texon LP, and independent client work. Problem solving from requirements through deployable systems.

ESP32 Cam

About Me

Stephen Vowell — inventor and consultant

Stephen Vowell · Sierra Vista, AZ · vowellstephen@gmail.com

I’ve spent most of my life building things — not because I set out to be an inventor, but because I’ve always noticed small problems and felt compelled to fix them. Over the years, that habit turned into a career in product development and programming. I’ve worked on tools that protect people, simplify daily tasks, and bring a little more order to the world.

My projects come from real moments: someone who needs a reminder, a space that needs watching, a task that needs to be easier. I’ve never been interested in flashy technology. I prefer solutions that quietly do their job and make life better for the people who use them.

I’m not much for self‑promotion, but I do believe in being approachable. I try to treat strangers the same way I treat friends — with warmth, curiosity, and respect. If you’re here because you’re looking for help with a project, or you’re just curious about what I build, I’m glad you stopped by.

I’m Stephen, and this is the work I’ve spent my life shaping.

Professional summary

Software engineer and consultant with 29 years in product development and programming — from mission-critical security consulting (NASA contractor) and enterprise systems at Texon LP to shipping production web services, embedded firmware, and patented network architectures. Strong hands-on coding in JavaScript (Node.js), C/C++, and Python; comfortable owning features end-to-end: design, implementation, review, deployment, and debugging in live environments. Recent work includes LLM-integrated voice assistants and agentic Python automation.

Current projects: MediAlert — contactless bedside wellness platform (mmWave radar + ESP32-C6 + live Health Board); Lumin — open-source Windows voice assistant (Groq, tool calling, desktop app).

Current project — MediAlert

medialert.net · Health Board · GitHub · Project details · 2024–present

Contactless bedside wellness — no camera, no microphone. Production Health Board (Node.js, Oura OAuth, vitals dashboard) plus bedside firmware (C++/ESP32-C6, 60 GHz radar, Twilio SMS, NeoPixel alarms). Oura ring live; watches, BP, and Alexa on the roadmap.

Technical skills

  • Languages: JavaScript (Node.js, ES modules), C/C++ (embedded), Python, HTML/CSS
  • Backend & APIs: Express, REST, OAuth 2.0, token refresh, reverse-proxy hosting
  • Embedded & IoT: ESP32 (C6, S3), PlatformIO, Wi‑Fi, UART/sensor stacks, NVS, MJPEG/HTTP servers
  • Infrastructure: DNS (Cloudflare), deploy automation, Linux PaaS, environment-based secrets
  • AI & automation: Groq LLM/STT integration, tool calling, speech pipelines, Cursor SDK agents, Gmail API/OAuth
  • Practices: Production code, debugging, code review, technical documentation

Professional experience

Independent software engineer & consultant

Sierra Vista, AZ / Houston, TX · 2024–present

  • Design, implement, and operate production Node.js services and embedded firmware for MediAlert
  • Shipped Lumin — Windows voice assistant with Groq STT/LLM, tool calling, session memory, and PyInstaller desktop packaging
  • Debug deployments across GoDaddy Node.js PaaS, Cloudflare DNS, and home-lab devices
  • Write API guides, deployment runbooks, and operator documentation

MediAlert Health Board — lead developer (Node.js)

medalert.stephenv.net · 2024–present

  • Express API: Oura OAuth 2.0, token persistence, auto-refresh, dashboard REST endpoints
  • Vanilla JavaScript frontend with Chart.js, auto-refresh, and alert-driven UI
  • Linux PaaS deploy pipeline; secrets via host UI; cross-platform zip packaging

MediAlert bedside unit — lead firmware developer (C/C++)

PlatformIO / ESP32-C6 · 2024–present

  • 60 GHz mmWave radar, person-present gating, debounced alarms, NeoPixel feedback
  • Captive-portal Wi‑Fi setup; LAN JSON status/cancel APIs; Twilio HTTPS SMS escalation

NASA — security consultant (contractor)

Johnson Space Center area, Houston, TX

  • Security consulting for mission-critical environments: risk assessment and deployable solutions
  • Bridged security policy and engineering teams under high-reliability expectations

Texon LP — solutions developer / technical consultant

Houston, TX · midstream energy / technology

  • Custom systems for crude-oil blending, pipeline logistics, and terminal operations
  • Requirements through deployment in a regulated production environment

Co-inventor — VUTP hybrid command-management systems

Orbit-Matrix / Global Communications · ~2007–present

Six granted U.S. patents on hybrid networks over existing building wiring and centralized command authority.

Selected projects

  • MediAlert — Health Board, bedside radar, OAuth, alerts, SMS
  • Lumin — Windows voice assistant: Groq LLM + Whisper STT, tool calling, web search, desktop app (MIT)
  • service-monitor — Python / Tkinter service dashboard with speed tests & SMS alerts (MIT, tested, CI)
  • espcam — ESP32-S3 MJPEG stream, Cloudflare tunnel
  • esp32-round-display-clock — clock & stopwatch for the Seeed XIAO round display (C++)
  • python-backup — scheduled folder-backup tool with a GUI (Python)
  • stephenv.net — portfolio and project showcase

Patents

Co-inventor, 6 granted U.S. patents (VUTP hybrid command management):

Patent links open Google Patents in a new tab. This page stays open — use Close (top right) or the browser Back button to return.

Résumé · July 2026 · PDF download