<home>

Hi, I'm Justus.

I build product-focused full-stack software and AI workflows that help teams move faster and make better decisions.

Portrait of Justus Witmer
</home>
<projects>

Projects that show my best work

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Tasso

Turns Google Sheets into API endpoints; built with an agentic AI-assisted development workflow.

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Anywhere Real Estate Inc.

Ordering platform improvements focused on reliability, backend performance, and reduced agent task friction.

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Sonny's Enterprises Inc.

IoT control software and cloud data pipeline work connecting hardware behavior with Azure-backed diagnostics.

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Cardigan Donuts

End-to-end e-commerce platform project featuring multi-location ordering, delivery routing, and payment integration.

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Hailscale

Lead full-stack project work for claims workflows, intake tooling, and automated inspection data handling.

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ICE Docks

Innovative freeze-in docks and boardwalks engineered to remain in water year-round without seasonal removal.

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</projects>
<toolkit>

Tools I use

Top Skills

Full-stack development, frontend engineering, API integration, e-commerce platforms, IoT software, agile delivery, end-to-end product ownership.

Frontend Stack

React, TypeScript, JavaScript (ES6+), HTML5, CSS3, responsive design.

Backend + APIs

Node.js, Express, REST APIs, webhook integrations, IoT device communication.

Data + Cloud

PostgreSQL, MongoDB, SQL, AWS (Lambda, S3, EC2), Microsoft Azure (Functions, Blob Storage), Azure DevOps, CI/CD pipelines.

AI + Developer Workflow

GitHub Copilot, Claude, Git, GitHub, VS Code, Postman, Scrum collaboration practices.

Integrations

Google Maps API, Square API, third-party service integrations, production-ready interface development.

</toolkit>
<about>

About me

As a full stack developer

Outside of work

</about>
<contact>

I am open for full-time work or projects.

Reach me on LinkedIn or through the form below.

</contact>