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Learn ReactJS, NextJS, MongoDB and JavaScript from an Expert Developer

Hello aspiring or working developer!

My name is Marcus Tellez, and I am a Sr. Web Developer who is enthralled with using Machine Learning to speed up my web development. And I can teach you how!

For a little over 10 years I’ve been mentoring students and developers in their web development aspirations.

My Skill Expertise

My specialties include JavaScript, NextJS, ReactJS, MongoDB, Prompt Engineeing and Functional Programming.

You see, I’ve been writing JavaScript since way back in 1997. I have a passion for helping people and writing beautiful code and prose.

I would love to be your secret weapon in your journey to become a successful programmer and to help you master the craft!

Find me on the web

I have mentored over 500 programmers

I have spent years consulting as a Sr. Developer at companies like YouTube, Twitter, and Uber, as well as hundreds of smaller clients that I valued just as much!

years coding
students mentored
5 star reviews
Marcus Tellez - Expert ReactJS Mentor
(453 reviews)

You can verify these reviews at where I helped over a thousand people just like you!

Ready to take action?

Book your first session now.

I offer a money back guarantee on your first lesson if you aren’t completely happy with my help.

How mentorship works

expert 1 on 1 programming help

This is a custom learning experience based on expert mentorship and solving real world problems together.

Leverage AI to code faster

Welcome to the AI revolution. I can show you how I use GPT to write better code in less time.

Use Windows, Mac or Linux

I work daily on all three platforms and I have years of experience on each!

Learn by doing

We work one on one, side by side, using Zoom. We build real world apps, not clones.

Record your sessions

Each session can be recorded to be rewatched at a later time, creating a screencast series all your own.