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Kunal Kapadia 5.0
Ex Microsoft, Senior Fullstack Engineer, JS geek
• Software Engineer with ~3.5 years startup experience. Love building things from ground up. Believes in TDD. • Have good understanding and experience in server-side development, building highly...
* Available for freelance projects
Hash mentor, Hash expert, Hash code help
$24.99 /15min
Message John
John Hamelink 4.9
CTO: Elixir, Ruby, Rails, Android Developer (and scrum master) with 10+ years experience
I've now completed over 120 sessions on Codementor! I'm a consultant developer who's been coding for over 10 years now; 6 of those years professionally. I mainly work in Rails, EmberJS and...
* Available for freelance projects
Hash mentor, Hash expert, Hash code help
$15.00 /15min
Message Aleksandar
Aleksandar Ogrizovic 5.0
Software Engineer at Symphony
Hello, my name is Aleksandar and I am programming now for more than 7 years. I have a strong algorithmic and mathematical background, competed through all high school and won several awards,...
* Available for freelance projects
Hash mentor, Hash expert, Hash code help
$15.00 /15min
Message Anuj
Hash mentor, Hash expert, Hash code help
$15.00 /15min
Message Jake
Jake Hash
Front-End Guru
Portuguese
English
Most of my experience is in building front end web and mobile applications, but I am interested in working with as many technologies as I can throughout my career. My primary desire is to build...
* Available for freelance projects
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* Available for freelance projects

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Hans K

"Another great session with John. I appreciated how he took a couple of steps back to challenge me on the fundamentals (i.e. db design), before diving back into the coding. Just what I needed!"

5 ★ ★ ★ ★ ★
Jonathan Libov

"Couldn't be more helpful in terms of helping me think about refactoring my app. Also taught me a few techniques and alerted me to some gems that I don't know how I ever lived without!"

5 ★ ★ ★ ★ ★
Ruben Ringelé

"John Hamelink is truly an amazing guy, solved all my problems i was having with my code and explained what i was doing wrong, will surely contact him again in the future if i need it."

5 ★ ★ ★ ★ ★
Matt

"Always extremely knowledgeable and helpful. He knows Ruby on Rails and the overall structure very well. Please to talk and work with."

5 ★ ★ ★ ★ ★
Patrick O'Malley

"John is super helpful. I wanted some general information on how to do things properly and also had some issues we wanted to fix, and those blended perfectly. I learned a lot. John was willing to go faster or slower and explain why he was doing what he did. Super session."

5 ★ ★ ★ ★ ★
Hans K

"John stepped in on a moments notice and showed instant understanding of what I was looking for, and then executed on my requests on the spot with incredible stamina. I will be back for more!"

5 ★ ★ ★ ★ ★
Vadim Sokoltsov

"He doesn't have a huge experience in field area, that needed me, but I received some useful advises and next time when something goes wrong with my project I'll call him."

5 ★ ★ ★ ★ ★
Hans K

"I found it tremendously helpful to be able to call on the guidance of John at the critical stage where a prototype is being turned into a production product."

5 ★ ★ ★ ★ ★
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