Sergey T.

Symfony2, MacOS and iPhone developer (PHP, C++, C, Objective-C)

Kharkov, Ukraine



What's the difference?

15 years of experience in software development.

During this period I developed over than 500 applications. My role in these projects there was very different: project leader, manager, developer, consultant.

Last 5 years I was developing only iPhone applications. And I have strong knowledge in client-server development on unix platforms, know databases and have strong knowledge in web development.

If you have application idea, just send me a message and I would happy to n discuss how to tur…


Sergey T. has added 9 portfolio pieces. Create an account to review them.

Work History & Feedback

iPhone and iPad Application Developer

“Sergey is a very capable developer and has a more extensive knowledge of the iOS platform than most developers I've come across.”
121 hrs @ $16.67/hr
Earned $2,209

custom circular uislider.

“Fantastic Job Sergey!!! you worked with me to deliver exactly what i wanted!! I Highly recommend you to anyone who needs a very good coder for their project!!”
Fixed Price $200

iPhone Bug Fixes and Code Review

“Job was completely on time and per specs. App works great.”
10 hrs @ $15.00/hr
Earned $155

Simple Iphone App

“We are very pleased to work with Sergey. A true professionist, one of the fastest developer we worked with to complete the right tasks at the right time.We hope to work again with him on other projects we are working.”
Fixed Price $510

iPhone/iPod Touch Game App

“Mr. Teryokhin provided an excellent job and completed the task as promised. There were things that I did not properly explain and Mr. Teryokhin adapted and fixed the issue with expediency. I highly recommend Mr. Teryokhin and his team to anyone who needs an iPhone/iPod Touch app made. His work is excellent and his prices are equally excellent.”
80 hrs @ $20.00/hr
Earned $1,600

Apple/Mac RSS Dashboard Widget

“Sergey did an outstanding job with this project.  He was very easy to communicate with and did all that I asked of him.  I highly recommend woking with Sergey if you have the opportunity to do so.”
Fixed Price

C++ Cocoa xCode Bluetooth Software

Job in progress

191 hrs @ $16.67/hr
Earned $3,190
Tests Taken
Name Percentile Score

Advanced PHP Test


PHP5 Test


Upwork Readiness Test for Independent Contractors and Company Managers


iPhone Programming OS 2.1 Test


iPhone Programming OS 4.0 Test