Profile image of KonstanBer
Member since May 5, 2019
0 Recommendations


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Good day. Thank you for considering my profile. I have been developing iOS & Android apps & Web over 8 years. "Let Satisfy the client with great result and fast speed" is my motto. As a PRO developer, I'll do my best responsibility for you and your work. ■ My major skills for development ★ Mobile app - Android(Java,Kotlin) and iOS(swift, obj-c) - Hybrid(Ionic, React Native...) - Dating, Chatting, Fitness and many more ... ★ Database - Firebase, MySQL, MongoDB and many more ... ★Web - ES6, React, Angular, Vue.js, webpack ... - javascript, Bootstrap, CSS ... - Laravel, core PHP ... - node.js ★Game - unity3D&2D, cocos2D&3D... ★3D Design - 3Ds Max, Maya, Solidworks, AutoCAD... ★Other skills -c, c++, c#, qt ... ★ my benefits - I will change our work time to your time zone - Responsible communication for each day(24/7 online). - Version Control (Git, Github, Gitlab) Best Regards.Sergey.
$30 USD/hr
2 reviews
  • 100%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • N/ARepeat Hire Rate


Recent Reviews

  • image of Waleed A. Rewrite deprecated class objective-c $40.00 USD

    “Sergey is a very professional developer, he did a great job in my project, he's looking for perfection in work and doesn't stop until everything is perfect, will definitely work with him again!”

  • image of Marco B. Help needed to include FluidSynth sound library in Android app. €80.00 EUR

    “This turned out to be a difficult job. I had to talk several times with Sergey to define many details. He also had to work many more hours than originally anticipated. In the end I got what I needed, I'm satisfied with the result, I thank Sergey for all his extra efforts, and I look forward to work again with him.”


Senior IOS & Android Expert

Jan 2013 - Dec 2018 (5 years)

Rich experience in body building and delivery service app which are on AppStore now.

Experiencd Team Leader

Jun 2011 - Jan 2013 (1 year)

In this company, I took my position as a team leader of 10 [login to view URL] had developed many web projects which are related to ROR and Mean stack , Laravel, Yii and are large in size.I also had to make them sales in market. Also I had faced android and iphone technology and for past 3 years we had many apps developed with java for android and swift && objectiveC for IOS.

3 years in Web development.

Jan 2007 - Dec 2010 (3 years)

Excellent experience with.


Bachelor Degree of Computer Science

2005 - 2010 (5 years)


2016-17 Golden Apple Awards (2017)

Golden Apple Honoree Flynn Elementary School

EDU clare Public schools foundation

Microsoft Certified Application Developer (2011)


Transcript ID: 664778 Access code: programmer [login to view URL]


IOS & Android

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