Nairobi, Kenya · Product and technology

Hi, I’m Sammy.

I build products at the intersection of technology, data, AI and people.

Experience across software, QA, product management, UX, data, AI, developer experiences, and technology platforms.

Currently shaping how developers discover and learn on GitHub.

Sammy Mati smiling at his desk, surrounded by product notes, books, plants, and a city view.

In brief

Product thinking grounded in how things actually work.

I like making complicated systems clearer and more useful — following the evidence, understanding the trade-offs, and staying close to the people using the product.

10+
years across product and technology
Now
shaping discovery and learning on GitHub
Focus
technology, data, AI, and people

Selected work

A few things worth opening.

View all work →
01

Product · Developer learning · AI

GitHub Learn

Shaping how developers discover learning, navigate it, and move from curiosity to making.

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02

Product · UX · Africa

AutoBuddy

A mobile-first automotive garage management concept with a published UX case study.

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How I work

Curious, evidence-led, practical.

Start with the problem. Make the complexity visible. Stay close to the people using the product. Ship, learn, and improve.

More about me →

Right now

GitHub Learn.

Thinking about how developers discover what to learn and move from curiosity to making.

What I’m up to →