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Mark Tellez
Expert Programmer of 15+ Years - Rails to React, Webpack and beyond
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ABOUT ME
5.0
31
Followers
304
Sessions / Jobs
$25.00
For every 15 minutes
I am now producing FREE ReactJS Screencasts: https://www.youtube.com/c/ReactUniversity
I love to help people just starting out, or solving problems that have been stumping more experienced programmers for hours. I help Entrepreneurs design, plan, and build amazing things, sort of like a Ghostwriter.
I placed 6th in the WORLD on this coding challenge using C++ and a genetic algorithm: https://www.codingame.com/multiplayer/bot-programming/fantastic-bits/leaderboard
Functional Programming, Ruby, Rails, JavaScript, es6, Webpack, Gulp, Babel, Crypto, WebSockets, Node, and so much more, just ask!
Guadalajara (-06:00)
English
EXPERTISE
40
Ruby on Rails







39
JavaScript







37
Ruby







19
React






16
Git






14
HTML/CSS






14
jQuery







13
Node.js






6
MySQL





3
Heroku



3
Amazon web services




Ruby
- 8 years experience
In 2008 I swapped my C# and .Net IDE and Windows box for a Mac and Ruby. Up until a year or two ago 90% of the software I wrote was in Ruby, spanning from sorting 1000s of atmospheric, seismic, solar, and wildlife reporting data from stations around the world to solar panel efficiency algorithms to countless e-commerce websites.
Until I got re-hooked on JavaScript (Thanks React!) it's pretty much all I did.
I know MRI inside and out and spent a long time perfecting my Ruby Fu, extending into Functional Programming, test driven development, and so much more!

JavaScript
- 18 years experience
I have been coding in JavaScript since 1998, In the last few years it has regained my love (hey, I lived through the browser-wars) thanks to React and Redux which are my new peanut butter and jelly!
The new toolsets of Webpack and Gulp and of course es6, made Node worth it all you could say.
Let me help you untangle your async madness!

HTML/CSS
- 20 years experience
My god... 20 years. I was playing Warcraft and throwing down <blink> tags from a cyber-cafe.......
When I am not coding my primary language, it is usually because I am writing HTML/CSS.

Node.js
- 5 years experience
Chat servers, bots, backends, database managers.... Node can help you with all of that, and I can as well, having spent enough yeas writing JavaScript that my experience could now vote......

jQuery
- 10 years experience
I wrote jQuery for years and years until React came along. Now I never use it, but I still know how to do just about anything in it.

MySQL
- 14 years experience
Relational databases like MySQL and Postgresql where my bread and butter for many years. I think relationally quite easily.

Git
- 12 years experience
Been using git forever. I can show you how to use less commands, and use git in a much more efficient way, with clean trees all the way to the horizon. Or I can help you get 'unfucked' when something goes horribly wrong. Reflow is a wonderful thing!

Coffee
- 10 years experience
I was writing coffeescript back when it was introduced to Rails almost 10 years ago. It was our es6 before we had es6!

SEO
- 8 years experience
I have taken several sites to top 10 land, and a few to #1 consistently. I have never been panda'd!

Amazon web services
- 6 years experience
Eventually sites grow beyond heroku, and usually, they grow into AWS serviced based platforms. I can help you with that!
REVIEWS
Average Rating
5.0
(164 ratings)
Awesome mentor!
163
Pretty good
1
Could've been better
0
Needs improvement
0
Unsatisfactory
0
Mark has helped me several times at this point and is always quick and knowledgeable and writes great code (despite my usual, annoying lack of A/V for our sessions). He's worth the higher price because you know he knows what he's doing! Thanks as always, Mark!
Ashley
Apr 14, 2018

Mark guided me to turn a complex feature into simple solution.
Ryan
Apr 12, 2018

Mark has done it again! I will continue to use services in the future
Ryan
Apr 12, 2018

Fixed sidekiq and discussed on how to open source my software and let others build stuff on top of mine.
masud
Mar 23, 2018

Mark is an amazing mentor! He helped me create a solution that didn't over complicate my feature.
Ryan
Mar 23, 2018

Absolutely unbelievable teacher. This will DEFINITELY not be the last time that I speak with Mark.
Blair
Mar 14, 2018

Another awesome session!! Mark explains the logic very clearly and I can understand it very well. Thanks!!
Daniel
Mar 10, 2018

Another great session with mark!
masud
Mar 8, 2018

Awesome mentor! He explains all of this steps and make sure he understands what you are trying to do.
cherise
Mar 8, 2018

Best mentor I have hired so far, went straight to point, solve my issue and explain what was going on, brilliant!
rolando
Mar 4, 2018
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