~$ whoami

Hi, I'm Justin.

Full-Stack Developer

I build AI systems that take work off people's plates, the web apps around them, and the self-hosted infrastructure they run on. Right now I'm working on an agent operating system for a marketing agency, a usage-based billing platform on Azure, and a five-host home estate I run like production.

Graduating May 2027 · based in Katy, TX · open to hybrid or on-site roles.

View Projects Download Resume

justin@homelab: ~

~$ whoami --location

justin · katy, tx · uh cs '27

~$ cat stack.txt

typescript · react · node · python

docker · proxmox · linux · nginx

~$ systemctl status portfolio

● active (running), self-hosted

~$ ./deploy.sh --agents

✓ 60+ agent skills loaded

~$ ping papatenko.org

64 bytes: the art side is alive ✓

~$ whoami --photo

about

From marketing automation to bare metal

I'm a developer in Katy, Texas who likes owning the whole stack, from AI agents that draft a client's LinkedIn strategy to the Proxmox host they run on. I'm the AI Systems and Marketing Intern at Momenta Fire, where I built Momenta OS, an agent operating system on a governed Google Drive vault.

Alongside it I'm building a usage-based billing platform on Azure that meters per-lead usage into automated Stripe invoicing. It isn't deployed yet.

Before and around all of that: full-stack web apps in React and TypeScript, real-time multiplayer systems, and a self-hosted infrastructure practice that treats my homelab like production, with documented runbooks and tested backups.

The creative half of my brain lives at papatenko.org: video editing for YouTube creators and businesses, thumbnails, logos, and poster design. Same person, louder colors.

~$ fortune
My entire portfolio, photo backups, and cloud storage run on a Proxmox homelab in my house.

54
client sites audited: 60+
agent skills shipped: 20+
self-hosted stacks: 99%+
uptime

experience

Where I've been

May 2026 — Present · Tomball, TX

AI Systems and Marketing Intern @ Momenta Fire

Built Momenta OS, an AI agent operating system on a governed Google Drive vault that keeps brand voice, client context, and content rules in sync across an 8-person agency team. Per-post content turnaround dropped from 45 minutes to under 10. Authored more than 60 versioned agent skills, audited GA4 and GTM coverage across 54 client WordPress sites, and wrote the company access governance standard with 5 trust tiers. Currently building a usage-based billing platform on Azure.
- Agent Harnesses / MCP
- Agent Skills
- Google Drive API
- WordPress
- GA4 & GTM
- Azure
- Stripe
Dec 2022 — Feb 2025 · Remote

Front-End Developer (Freelance) @ Incarnate Editors

Redesigned the mobile UI with TailwindCSS, increasing mobile traffic by 20%. Built a 40+ node user-flow diagram for navigation planning and programmed a full-stack data-modeling application with React, Firebase, and Electron that visualized more than 100 data entries.
- React
- TailwindCSS
- Firebase
- Electron
- Figma
May 2022 — May 2025

President @ Lone Star College CyFair — Computer Science Club

Led a 275+ member organization and grew membership 20% through targeted recruitment. Hosted Git, web development, and computer engineering workshops for 50+ students. Coordinated 4 inter-club competitions plus 3+ hackathon and VEX robotics events.
- Leadership
- Git
- Web Development
- Workshops
2025 — Present

B.S. Computer Science — Expected May 2027 @ University of Houston

Hackathon builds include an AI schematic-parsing chatbot (React + Rust + Gemini) shipped in 24 hours.
- Machine Learning
- Databases
- Algorithms
- Python
- Java

projects

Featured work

Momenta OS

An AI agent operating system for a marketing agency, built on a governed Google Drive vault. Supported AI assistants load client context, brand voice, and content rules before writing. More than 60 versioned agent skills turn recurring work such as WordPress audits, SEO remediation, and Pressable MCP site updates into machine-readable runbooks.

→ Per-post content turnaround dropped from 45 minutes to under 10 across an 8-person team.

Built at Momenta Fire. Momenta Fire owns this work.

Agent Harnesses
MCP
Agent Skills
Google Drive

Paybridge

In progress

A usage-based billing platform that meters per-lead usage from a partner SaaS product and sends it to Stripe for invoicing. It uses integer-cent pricing calculated on the server, signed webhooks, event deduplication, and idempotent billing cycles. Auth.js sign-in adds per-login 2FA, login throttling, and fail-closed behavior.

→ In progress. The build exists; deployment comes later.

Built for Convoy Sage. Convoy Sage owns this work.

TypeScript
Prisma
PostgreSQL
Stripe

Proxmox Homelab

A 5-host Proxmox and Docker estate running more than 20 container stacks under GitOps. It has centralized SSO, network-wide DNS filtering, and a Tailscale mesh for zero-trust remote access. Scheduled restic backups use daily, weekly, and monthly retention for host configs, service stacks, and Docker volumes. Completion hooks page when a run is missed.

→ Sustained 99%+ uptime across 8+ publicly reachable services.

Proxmox
Docker
GitOps
Tailscale

Shako Kabob: Foodtruck POS

Full-stack point-of-sale and ordering platform for a food truck: employee management, inventory tracking, and sales across 18+ SQL tables, with automated Docker deployments on Coolify.

→ Cut build times 50% via Docker layer caching; led a team of 4 to production.

React
Vite
Node.js
MySQL

Rock Paper Scissors Tournament

Real-time competitive rock-paper-scissors tournament platform with a retro arcade theme. Designed in Figma with more than 20 frames, built with React, TypeScript, and Socket.IO, and run live on campus.

→ 95+ Google Lighthouse score; hosted live tournaments with real-time brackets.

TypeScript
React
Socket.IO
TailwindCSS

Schematic Spelunker

NotebookLM-style AI chatbot that parses machinery schematics. Built in 24 hours with a React frontend, Rust parsing engine, and Gemini API while leading a team of 4.

→ Under 30s processing for 15+ concurrent PDF documents.

React
Rust
Gemini API
RAG

Portfolio Platform

Self-hosted gallery of more than 50 graphics and websites. JSON feeds a React frontend, which runs as an HTTPS service on my Linux servers through a GitHub Actions CI/CD pipeline.

→ 99% uptime, fully self-hosted end to end.

React
CI/CD
GitHub Actions
Linux

open-source

On GitHub

papatenko/homelab Proxmox and Docker stacks, deployment configuration, and runbooks.
papatenko/portfolio The Astro monorepo for this site and my creative portfolio.
papatenko/old-portfolio My earlier portfolio, built with React and Tailwind CSS.
devaine/RPS-Tournament Core contributor: real-time tournament logic and retro UI.
papatenko/dotfiles Lua-based Neovim + shell configuration, kept in sync across machines.
papatenko/point-of-sale-system Foodtruck POS: MySQL, Node, React, Turborepo monorepo.
papatenko/my-odin-projects Vanilla web development fundamentals from The Odin Project curriculum.