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Open to SWE internships & roles

I build full-stack AI products and the production infrastructure behind them.

Computer Science @ University of Illinois Chicago (Software Engineering concentration). Currently a Software Engineering Intern at Mylon.AI and building BillGuard.

Chicago, ILGitHubLinkedIn

Featured projects

Things I've built and run.

Strongest first — each is a real system I designed, built, and operate end to end.

BillGuard · Current

Medical Bill Analyzer

Benchmarks charges against 10,000+ CMS fee-schedule entries to catch overcharges.

A full-stack web app that analyzes medical and dental bills with OCR, extracting procedure codes across three coding systems (CPT, CDT, HCPCS) and flagging upcoding, unbundling, and duplicate charges.

A React + Vite frontend on Vercel calls serverless functions that proxy to a Python backend on Modal; Tesseract OCR with regex parsing handles structured code extraction, a PostgreSQL fair-price engine draws on CMS Physician Fee Schedules and NCCI edits, and the Claude API drafts dispute letters.

React · Vite · Python · Modal · PostgreSQL · Tesseract OCR · Claude API

StockSignal

ML Stock Price Predictor

A 3-layer PyTorch LSTM serving live training progress and 7-day forecasts.

Trains an LSTM forecasting model and serves its predictions through a REST API to a real-time dashboard.

The 3-layer PyTorch LSTM sits behind a FastAPI REST API; a React + Tailwind dashboard streams real-time training progress alongside 7-day price forecasts.

Python · PyTorch · FastAPI · React · Tailwind CSS

Self-Hosted Homelab

Cloud Infrastructure · 2023–present

13+ services and 20+ users running on bare metal — 99.9%+ uptime, zero open ports.

A self-hosted platform on Proxmox VMs with TrueNAS (ZFS) storage and Dockerized apps, including a GPU-accelerated media server with hardware transcoding serving 20+ users across streaming and photo services.

Remote access is zero-trust — Cloudflare DNS, a hardened VPS reverse proxy, and a Tailscale mesh VPN — so there are zero open ports while holding 99.9%+ uptime over three years.

13+
Services
20+
Users
99.9%
Uptime
0
Open ports
3 yrs
In production

Proxmox · TrueNAS (ZFS) · Docker · Linux · Cloudflare · Tailscale

Experience

Where I've worked.

Mylon.AI · Now

Jun 2026 – Present · Remote

Software Engineering Intern

Building a multi-tenant RAG tool that lets university staff query institutional documents in natural language with cited answers — a 10-week MVP for design-partner institutions. Built on FastAPI / React / TypeScript with Supabase, pgvector, and Voyage AI embeddings; isolated tenants with Postgres Row-Level Security and signed JWT tenant claims. Stood up the backend/frontend scaffolding, a live /health endpoint, and a GitHub Actions CI pipeline (lint + tests on every PR).

Player One Amusement Group

Jan 2023 – Jan 2026 · Chicago, IL

Service Technician — Technical Apprenticeship

Diagnosed and fixed hardware and software failures across 20+ arcade systems at 8 locations, completing 100+ on-site repairs a year through systematic root-cause debugging. Configured, calibrated, and validated newly installed units.

About

Product, ML, and the infrastructure underneath.

Karol Pawlowski

I'm a CS student at UIC (Software Engineering concentration, graduating December 2027) who builds full-stack, AI-powered products and runs the self-hosted infrastructure they live on.

That trifecta is the point: I ship product, train and serve ML models, and operate the production infrastructure underneath — most visibly a homelab I've run for three years. I'm equally at home in a React frontend, a Python backend, and a Linux box wiring up networking.

I learn by building real systems end to end and keeping them running, then reaching for the next problem that forces me to learn something new.

Education

B.S. Computer Science — Software Engineering concentration

University of Illinois Chicago

GPA 3.34 / 4.0 · Expected December 2027

Relevant coursework

Data Structures · Object-Oriented Programming · x86-64 Assembly & Machine Organization · Theory of Computation

Certifications & achievements

  • AWS Certified Cloud Practitioner (2023)
  • 3rd Place — Capture the Flame 2026 CTF, Beginner Division (3-person UIC team; sponsors: Zebra Technologies, CompTIA, SANS Institute)

Skills

The toolkit.

What I actually build with — grouped, not ranked.

Languages
C++ · C · Python · JavaScript · TypeScript · Java · SQL · HTML/CSS
Frameworks
React · Vite · FastAPI · Node.js · Tailwind CSS · REST APIs
Cloud & DevOps
AWS · Vercel · Modal · Docker · Git · Linux
Data & ML
PostgreSQL · PyTorch · Pandas · NumPy · scikit-learn · Tesseract OCR · Claude API
Infrastructure & Networking
Proxmox · TrueNAS (ZFS) · Tailscale · Cloudflare · Nginx Proxy Manager · Pi-hole

Open to SWE internships & roles

Let's build something that stays up.

I'm looking for software engineering internships and roles. Email is the fastest way to reach me — I reply quickly.