Jack
Hartwig
Software Developer
Building practical solutions that solve real business problems.
I'm a fullstack developer with a Computer Science degree from UAH. I specialize in building production ready applications that replace expensive SaaS solutions with custom, self-hosted alternatives.
I've developed inventory management and expense tracking systems that eliminated recurring costs for multiple businesses.
My approach combines modern web technologies with DevOps practices, from React and Next.js on the frontend to Docker containerization and self-hosted infrastructure.
Years Coding
Production Sites
Frontend
Backend
Infrastructure
Systems and Operations Support
Blue Sky Industrial SolutionsDeveloped custom inventory management and expense reporting software, replacing enterprise SaaS solutions and architecting network infrastructure with Proxmox and TrueNAS.
Featured Projects
LingoLens
Language learning platform — web app, Chrome extension, and iOS/Android apps — that turns YouTube videos into interactive lessons with real-time subtitle translation, vocabulary tracking, and spaced-repetition flashcards.
Nova Expense
A modern expense tracking app that simplifies personal finance management with intuitive design and powerful features.
Stockpile
Multi-tenant warehouse inventory management system with real-time tracking, batch monitoring, and customer relationship management.