Software Developer — React, TypeScript & .NET
Open to frontend and full-stack roles.
I build web and mobile software for practical problems. Over 10 years, my work has ranged from applications used at the Paris Olympics to internal manufacturing tools.
As a volunteer Firefighter/EMT, I bring that perspective to fire-service learning tools, offline study apps, and district maps built with public GIS data.
2025 - Present
I continue to develop features, tune performance, and support products for Visionbox, my former employer, alongside work for other clients. My focus is the application UI and the engineering workflows used to deliver it.
2025
Built interfaces for satellite communications systems using software-defined radios. I worked with end users on wireframes, implemented screens with the ASTRO UX Design System, and integrated backend APIs, updating services where needed.
2018 - 2025
Developed public mobile apps, websites, and browser extensions across consulting projects. I focused on frontend implementation with React, React Native, and TypeScript, with API development in .NET Core.
2017 - 2018
Helped migrate a Windows Forms application to Angular 4 as part of the Enhanced User Experience team. I implemented web interfaces and integrated services from a .NET MVC backend.
2016 - 2017
Led a small team moving desktop .NET tools into a shared web portal for inventory, logistics scheduling, purchase orders, and reporting. I owned application architecture, UI/UX design, and Ubuntu/Apache server maintenance.
A fire-service learning management system with course modules, quizzes, assignments, practical skills evaluations, driving logs, and progress tracking.
Tech stack: React, TypeScript, Tailwind CSS, NestJS/Fastify, PostgreSQL, Prisma, and S3-compatible file storage.
Fire-service training includes coursework, practical skills, and driving experience. This project brings those activities into one learning management system.
Course modules, quizzes, assignments, practical skills evaluations, driving logs, and progress tracking. The course interface groups study resources, files, and quizzes into modules.
A React and TypeScript frontend with Tailwind CSS, a NestJS/Fastify API, PostgreSQL through Prisma, and S3-compatible file storage.
An offline Driver/Operator study app with practice quizzes, flashcards, spaced review, bookmarks, and progress tracking. Includes an interactive 3D apparatus explorer and equipment references.
I also built a Python and QGIS workflow using official Douglas County GIS data to create district maps for training and preplanning, with map exports for Station Study.
Tech stack: React Native, Expo, TypeScript, Expo Router, SQLite, and Three.js.
Driver/Operator preparation combines study material, equipment references, and district knowledge. Station Study makes those resources available in an offline study app.
Practice quizzes, flashcards, spaced review, bookmarks, progress tracking, and an interactive 3D apparatus explorer. I also built a Python and QGIS workflow using official Douglas County GIS data to export district maps for the app.
React Native and Expo with TypeScript and Expo Router, SQLite for local data, and Three.js for the apparatus explorer.
React Native app for browsing Colorado Firefighter I JPR skill sheet tasks. Search and filter mandatory and random skills, review conditions, equipment, outcomes, and steps, and open bundled task PDFs.
Tech stack: React Native, Expo, TypeScript, AsyncStorage, Expo Updates, and Sentry.
Preparing for Colorado Firefighter I requires reviewing individual skill requirements. JPR Ready brings those tasks and their supporting skill sheets into a mobile app.
Search and filtering for mandatory and random skills, with conditions, equipment, outcomes, task steps, and bundled PDFs available for review.
React Native and Expo with TypeScript, AsyncStorage, Expo Updates, and Sentry.
An unofficial ERG 2024 companion with UN/NA and material-name search, response guides, isolation-distance maps, bookmarks, and offline PDF access. Cargo Scan uses OCR to extract hazardous-material details from shipping documents.
Tech stack: React Native, Expo, TypeScript, native maps, and a Python/FastAPI OCR backend.
Hazardous-material reference lookups can start with an identifier, a material name, or shipping-document details. This unofficial ERG 2024 companion brings those lookup paths into one app.
UN/NA and material-name search, response guides, isolation-distance maps, bookmarks, and offline PDF access. Cargo Scan uses OCR to extract hazardous-material details from shipping documents.
React Native and Expo with TypeScript and native maps, plus a Python/FastAPI backend for OCR.
React PWA that helps filter words to solve the popular Wordle game.
2026
Hazmat Awareness & Operations
2026
2024
2012
I’m an ultra runner, climber, and skier. I volunteer at trail races and help maintain the trails I use. I’m also an amateur radio operator, KFØSXS, with an interest in emergency preparedness.
Hiring for a frontend or full-stack role? I’d be glad to talk about your team and the problems you’re working on. You can also reach me about projects or collaboration.