Hi, I'm

Sean Campbell

Software Engineer & Problem Solver

I build systems that bridge complex technical challenges with real human needs. Currently crafting solutions with Golang , Python , .NET , React , and Angular .

5+ Years Building Software

15+ Projects Shipped

∞ Cups of Coffee

View My Work Get in Touch

Beyond the Code

I try to give back to the community that got me to where I am today.

Conference Speaker

Dallas Software Developers

Regular speaker sharing insights on backend & frontend architecture patterns, and developer productivity.

Team collaboration during coding bootcamp

Engineer Team Lead

DSD Cohort Program

Mentored aspiring developers through their learning journey, conducting code reviews and pair programming sessions.

Open Source Contributor

Various Projects

Contributing to tools I use daily, from bug fixes to documentation improvements and feature development.

Featured Work

Every project tells a story. Here's the thinking behind the code.

The Problem

Planning outdoor trips requires juggling multiple disconnected sources — NPS, Recreation.gov, weather services, cell coverage maps — with no unified way to discover and evaluate campsites.

The Solution

Built a full-stack geospatial platform with a Next.js frontend backed by 4 Go microservices that aggregate NPS, RIDB, NWS, and FCC data into an interactive Mapbox map with site details, weather, and cell coverage.

Tradeoffs & Decisions

Chose microservices over a monolith — each service (places, weather, coverage, reservations) scales and deploys independently, but adds orchestration complexity. PostGIS handles spatial queries correctly (Earth curvature) at the cost of a heavier database dependency.

Impact

Consolidates 4+ data sources into a single map-based interface. Background sync keeps data fresh without blocking users, and the BFF pattern keeps internal services unexposed.

The Problem

Enterprise web apps need browser-based document scanning, but the go-to commercial library is expensive and can't handle legacy 32-bit-only scanner drivers on modern 64-bit systems.

The Solution

Built a headless Tauri v2 system-tray agent that exposes a WebSocket API on localhost for browser-to-scanner communication. Uses a typestate pattern for the TWAIN state machine — seven state transitions verified at compile time — and spawns a 32-bit sidecar process to bridge the architecture gap for legacy drivers.

Tradeoffs & Decisions

Chose Rust's typestate pattern to make invalid TWAIN state transitions compile-time errors instead of runtime bugs. This added upfront design complexity but eliminated an entire class of scanner communication failures. A 32-bit sidecar over JSON-line IPC was simpler than forcing the whole app to 32-bit, at the cost of cross-process coordination.

Impact

Eliminates per-seat licensing costs for commercial scanning SDKs. Supports both modern 64-bit and legacy 32-bit TWAIN drivers in a single install — critical for enterprise deployments with mixed hardware. DPAPI-encrypted auth and origin validation secure the localhost WebSocket without TLS certificate complexity.

The Problem

Music trivia games rely on playing full tracks, making it too easy to identify songs. There's no game that challenges players with isolated stems — just vocals, drums, or bass — for a genuinely difficult guessing experience.

The Solution

Built a daily Wordle-style music guessing game where players identify songs from isolated audio stems. A .NET API orchestrates Python ML models (Spleeter/Demucs) to separate uploaded tracks into vocals, drums, bass, and instrumentation.

Tradeoffs & Decisions

Audio separation runs Python ML models invoked via subprocess from .NET rather than porting to native code. This adds deployment complexity (multi-container Docker setup) but leverages battle-tested models that would take months to reimplement.

Impact

Players get 4 attempts with scoring based on speed (100/75/50/25 points). A daily background job auto-selects the Song of the Day, and the hybrid .NET/Python pipeline processes tracks end-to-end from YouTube URL to separated stems stored in cloud storage.

Talented developer and lightning fast learner. I had the pleasure of mentoring Sean at 100devs. No matter the challenge or how short the deadline, Sean always triumphed. He never settled for just what was due, but pushed boundaries and always delivered a product well above and beyond what was asked. Not only was Sean's work ethic unparalleled, but the speed at which he was able to learn new materials was astonishing. His hard work and ability to quickly understand complex topics made him into a great programmer.

Leon Noel

Managing Director of Engineering, Resilient Coders

Currently Building

What I'm learning and creating right now.

Browser DAW Engine

Exploring low-latency audio in the browser — Rust compiled to WASM, running inside an AudioWorklet with sample-accurate scheduling.

Deep Dive: System Design

Studying and thinking in terms of systems and how they apply to real-world scaling challenges.

Technical Writing

Documenting lessons learned from production systems - check out my technical blog!

Let's Build Something

Whether you're looking for a software engineer who can hit the ground running, or you just want to talk shop about architecture patterns—I'd love to hear from you.

Get in Touch →

sean@seanthedeveloper.com

Sean Campbell

Beyond the Code

Conference Speaker

Engineer Team Lead

Open Source Contributor

Featured Work

Roaming.Camp

The Problem

The Solution

Tradeoffs & Decisions

Impact

RSWebTWAIN

The Problem

The Solution

Tradeoffs & Decisions

Impact

Songle

The Problem

The Solution

Tradeoffs & Decisions

Impact

Currently Building

Browser DAW Engine

Deep Dive: System Design

Technical Writing

Let's Build Something