Hello! I build intelligent platforms for data-driven organizations all over the world, from large enterprises to small startups, and in areas as varied as retail, finance, real estate, entertainment, telecommunications, and academia. I use cloud and open-source technologies to do so, and I’m comfortable interfacing with executive, technical, and non-technical teams.

My background is in Machine Learning, Mathematics, and Economics. I was National Data Science Co-Champion for a contest organized by Mexico’s Presidential Office (2014), and I wrote R Programming by Example (2017).

Let’s talk! You can reach me at contact@omartrejo.com

“There’s nothing more powerful than an idea whose time has come.”
—Víctor Hugo


Reviews

"Omar is an exceptional programmer and developer with a multitude of skills. He helped me build from scratch a blockchain prototype in less than a week. Highly recommend!"
—Ash Aleshi

"Omar is very professional and trustworthy. All codes provided were clear and well-justified. Finished the job on time. Will definitely recommend to all."
—Ryan Wu

See more comments about my work in my CodeMentor reviews.


Publications

R Programming by Example book published by Packt (2017).

Blog