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Nathan Fennel

Building software people use.From tools to products toexperiments.

Engineer, creator, and thinker.
I explore code, product, and practical AI every day.

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Who I am

I've shipped products that touch hundreds of millions of people and care deeply about making software work for everyone, in every language and locale. I love building at every scale, from apps for millions to something built for one person, and leading teams to tackle problems bigger than any one person. My wife calls my three main hobbies "the expensive ones": photography, music, and woodworking. I enjoy urban life and the way time zones weave the world together. Mixing these interests helps me think in new ways and spot connections I might have missed otherwise.
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Work

If you have an iPhone, you probably have code I've written on your phone right now. I've shipped and led work on some of the most widely used apps in the world. If you speak a language other than English, it's likely you've used functionality I've designed or worked on directly. Making software work for everyone, in every language and locale, is something I care about and have spent years doing at scale.

Explore my work

Thoughts

Essays on AI engineering, deep dives on building products, and notes for engineers.

Read my thoughts

What I care about

Practical AI integration that delivers real value. Internationalization and accessibility as fundamentals. Everyone having access and opportunity—digital products should be usable by everyone who wants to use them. Ingenuity, creativity, and innovation happen when people combine their experience with access and ability. Teams built on trust and psychological safety. Shipping and iterating.
See how I think

Connect

If you want to build something interesting together, reach out.
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Rest of the site

Work

Apps, websites, and product experiments.

Thoughts

Thoughts on tech, AI, and building products.

About

Who I am and how I think.

Contact

If you want to build something interesting together, reach out.

Games

Mini games and interactive tools.

3D Models

STL and 3MF files for 3D printing.

How I can help

If you need a partner to move a product forward, these are the most common ways we work together.

Engineering leadership

Lead delivery across product, design, and engineering without extra process overhead.

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Practical AI integration

Identify where AI actually helps, ship quickly, and keep quality and cost under control.

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iOS internationalization and accessibility

Build product experiences that work in every locale and for people with different abilities.

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How working together starts

Send context, and I'll reply with thoughts. Short messages are fine.

  1. Share context (goal, constraints, timeline).
  2. I reply with focused recommendations and a practical next step.
  3. If it's useful, we continue. If not, no pressure.
Send context

Start here

Pick the path that matches what you need right now.

Hiring manager

See role scope, impact, and selected platform work.

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Founder or product lead

See how I approach high-leverage AI and product decisions.

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Engineer

Jump into technical writing and implementation details.

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