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Petr Sima 5.0
iOS developer (5 years, involved in 35+ projects) and teacher (private and university courses, talks)
Czech
English
Available in all timezones. Excelent English. From single person projects to Czech e-commerce app of 2017, from an Australian startup to large international clients in retail, telecommunications...
Unidirectional mentor, Unidirectional expert, Unidirectional code help
$35.00 /15min
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Tanner Linsley 5.0
Javscript, React, Open Source, Data Visualization - Debugging, Architecture, OSS Solutions
Portuguese
English
I live and breat Javascript, React, and Open Source. I have built and maintain many large and successful open source libraries along with building and running my own marketing analytics software...
* Available for freelance projects
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* Available for freelance projects

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Jermaine Gray

"Dan is very good at debugging, a good teacher and will not stop and until the issues are resolved. I was having issues passing JSON data to my Android App using Retrofit2 API Dan was able to debug my android application and fix my Web API in less than 1 hour."

5 ★ ★ ★ ★ ★
Jeff Ward

"Robert was a great person to work with! He systematically worked on my problem, he presented two different solutions to the problem. We discussed both solutions, then decided on the first soltion. Robert worked to ensure that it was possible, and his hunch was correct, it was possible to achieve. He provded A+ service, and help. He was a pleasure to work with and spoke great english. I recommend him to anyone with a C# problem"

5 ★ ★ ★ ★ ★
William S

"Jin's a trusted advisor and available when you need help, delivering support while keeping your best interests in mind. A must hire mentor."

5 ★ ★ ★ ★ ★
jose

"Best tutor I ever met. Understand what you need when you are lost in your work and guide you throug. "

5 ★ ★ ★ ★ ★
teo teo

"He was very helpful, he understood what i wanted and was very quick. It was a pleasure working with him and really advise you to hire him for your jobs."

5 ★ ★ ★ ★ ★
Jacob

"WOW. Danny is one of the best mentors I have encountered anywhere on the internet. He was very patient and thorough with my request regarding React Native. Super knowledgeable. Highly recommended."

5 ★ ★ ★ ★ ★
D.K. Willardson

"Oshan is excellent in R and extremely fast at fixing issues. Definitely a primary go-to source for my R needs."

5 ★ ★ ★ ★ ★
Constantine Papazacharioudakis

"Very helpful and efficient and solving my problem. Explained the problem and how he solved it well. Great service!"

5 ★ ★ ★ ★ ★
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