Petr Sima
Mentor
(240 reviews)
US$40.00
For every 15 mins
665
Sessions/Jobs
ABOUT ME
Swift developer and mentor, many years of experience, early adopter of all current state of the art technologies.
Swift developer and mentor, many years of experience, early adopter of all current state of the art technologies.
Available in all timezones. Excelent English.
I removed my old bio because it becomes outdated quickly. By now I've done enough to be able to say: I've really done a lot 🙂. I provide a full range of services to meet all your Swift needs.
Czech, English
Prague (+02:00)
Joined July 2017
EXPERTISE
10 years experience | 17 endorsements
I've taught iOS courses (both private and university).
I've given iOS related talks.
I've onboarded and lead teams of junior and senior d...
I've taught iOS courses (both private and university).
I've given iOS related talks.
I've onboarded and lead teams of junior and senior developers.
You'll enjoy learning with me.
11 years experience | 15 endorsements
Unidirectional architectures (Composable Architecture), native SwiftUI architecture ("SwiftUI MVC"), also MVVM although Im no longer a fa...
Unidirectional architectures (Composable Architecture), native SwiftUI architecture ("SwiftUI MVC"), also MVVM although Im no longer a fan (was a big fan before SwiftUI).
10 years experience | 20 endorsements
With a systematic approach, I can ask you and your program just the right questions to quickly locate the source of your bug or performan...
With a systematic approach, I can ask you and your program just the right questions to quickly locate the source of your bug or performance problem. Then, I can suggest a quick fix or teach you how to avoid such problems in the future.
I have experience with Instruments, but most of the time I make do with XCode's built in debugger. At my former job, not only was I the go-to guy for any iOS problem, I was also regarded as the company google searcher :)
8 years experience | 23 endorsements
Huge fan of functional programming, and can turn you into one too.
I started with FRP frameworks all the way back in the Objective-C day...
Huge fan of functional programming, and can turn you into one too.
I started with FRP frameworks all the way back in the Objective-C days. But its not just about Combine (which you should be using), FP is so much more.
If by any chance you understand Czech, watch my old talk on functional reactive programming https://www.youtube.com/watch?v=MnEbZGv8t_c&t=1s
5 years experience | 10 endorsements
I know ObjectiveC well but I won't fix your ObjectiveC code, so what are we even doing here? 😀 Switch to Swift, then let me know.
I know ObjectiveC well but I won't fix your ObjectiveC code, so what are we even doing here? 😀 Switch to Swift, then let me know.
REVIEWS FROM CLIENTS
(240 reviews)
johnny adkins
March 2024
Petr is a wizard
Olivier Desrochers
February 2024
Petr is incredibly kind and professional. I appreciate how he takes the time to walk me through his thought process while assisting me with debugging my code.
Kevin Kossi
January 2024
Petr knows his stuff, very helpful and friendly.
jonny grey
November 2023
fast and pleasant and sharp
Olivier Desrochers
November 2023
Petr was really nice and resolved my issue in less than 5 minutes. I'll definitely use his help again in the future!
Yiannos “Covalent” Christou
October 2023
Money well spent. Solved my problem in literally 20 minutes. Totally recommend.
Akram
October 2023
Was efficient with what I needed to have done, solved my problem fairly quickly. Worth the price.
Mark LaFond
September 2023
Petr did a great job and got me unstuck!!
Junaid Khan
September 2023
Fixed my problem
Laurent Senta
September 2023
Very knowledgeable, helpful, and clear,
Thanks for the guidance.
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