zumbrunn.com

Decades of JavaScript expertise.
Framework development.
Platform ecosystem building.

Deep expertise. Lean delivery.

Designed interactive media before the Web was born. Used Javascript server-side for a decade before Node was a thing. Participated in working groups defining open standards and ecosystem processes that shaped the JavaScript ecosystem and broader internet infrastructure.

Three decades of solutions engineering experience, applied efficiently with modern AI tooling.


Technical Expertise

JavaScript & Web Fundamentals
30+ years of JavaScript development—from prototypes to production systems. Deep understanding of the language, its quirks, and how to use it effectively.

Open Source & Standards
I've participated in the working groups that defined CommonJS and SPF—contributing to the open standards and ecosystem processes that shaped the JavaScript ecosystem and broader internet infrastructure.

Framework & Architecture
I've built frameworks from scratch—including custom Rhino-based web frameworks, contributions to Helma Object Publisher and Web Crossing — and worked with every major framework over the decades. I understand architecture patterns, not just how to use tools.

Solutions Engineering
I've consistently operated at the seam between platform builders and solution builders — understanding and contributing to what the platform provides, designing or documenting what developers write their code against, building reference applications, and participating in communities on both sides.


Available For

Solutions Engineering
Bridging platform teams and developer communities — documentation, SDKs, reference implementations, developer onboarding, technical advocacy, and API design feedback.

Platform & Framework Development
Building the API and tooling layers developers write against — from framework architecture to plugin systems, CLIs, and developer documentation.

Technical Consulting
Architecture reviews, API and developer experience audits, technical writing, team mentoring.


Technologies & Tools

Languages: JavaScript/TypeScript, HTML, CSS, Elixir, Java

Frontend: JSX, Preact, Fresh, Svelte, React, Phoenix LiveView

Backend: Deno, Hono, Node.js, Express, Fastify, Phoenix, Apache Sling, AEM, RingoJS

Data Layer: Orange ORM, Prisma, Deno KV, MongoDB, Jackrabbit Oak, H2, PostgreSQL, SQLite

Historical: Helma Object Publisher, Web Crossing, custom Rhino-based frameworks

Infrastructure: Debian, BSD systems, Docker, OpenLiteSpeed, Apache, serverless

Deployment: AWS, Azure, Exoscale, any Linux or BSD-Unix VPS

Tools: Git, Unix/Linux command line, modern build tools, AI-assisted development


Discuss a project →