Dez Udezue · AI engineer & author

Build it.
Find out if it works.

My work sits where models, human judgment, and evidence meet. At Meta, I’ve worked across evaluation, model improvement, integrity, monetization, and experimentation. Earlier, I worked on ads delivery at LinkedIn and ads ranking at Microsoft.

My background is in mathematics and science. I also write novels. Those interests come together in Saeon: building AI that helps people understand a subject and write what they mean.

What I’m building

Saeon

Knowledge is power.

Fluent writing can lose the idea. A confident answer can leave you checking every claim. I’m building Saeon to preserve meaning, examine what supports an answer, and make difficult knowledge easier to use.

Discover Saeon
Saeon’s archive sculpture, with manuscript pages surrounding a lit opening

Yoga app

NagiYogi

Learn proper form as you practice. Guided yoga classes with visual cues and spoken instruction, personalized to your time and focus.

Explore NagiYogi
A woman seated on her yoga mat in NagiYogi

Experience

Better systems need better evidence.

Meta

Evaluation, experimentation, and applied AI

Model evaluation and hill climbing. Human annotation and labeling. Integrity and monetization. A/B testing grounded in statistical analysis.

LinkedIn

Ads delivery

Engineering the systems that deliver advertising to LinkedIn’s audience.

Microsoft

Ads ranking

Working on the ranking systems behind advertising.

Other work

Storytelling & design

The Eden Ruse

The world of my epic fantasy novel, brought onto the web through editorial design, motion, and reading experiences.

Explore the book

A conversation worth having.

Interested in evaluation, language, experimentation, or making knowledge more useful? Find me on LinkedIn or explore my work on GitHub.