Janusz G.

Janusz G.

Experienced iOS Developer

Szczecin, Poland



What's the difference

I am an experienced freelance iOS developer with previous gamedev experience. I am familiar with most aspects of iOS programming, including UIKit, CoreAnimation, OpenGL, GameKit, IAPs, CoreText, GCD, networking. I have developed about 30 iOS apps from scratch, and worked on many more. Before that, I helped to develop over 40 mobile java games.

Work History & Feedback

Convert Ruby snippet to Obj-C

Fixed Price $30
“I asked for a simple language-to-language translation, and I got back a project with well-structured code, unit tests, and requests for clarification of corner cases. It was a pleasure to work with you.”


Expert iOS developer for urgent bug fix

4 hrs @ $40.00/hr
Earned $153
“Janusz was a hero. In the late stages of an iOS project i had some urgent bugs arise. Janusz worked quickly and efficiently to find the solutions and discuss with the other developers on the project how to make the fixes along with fixing some last minute issues just prior to submission. Janusz having involvement has given me peace of mind that some of the critical features of the app will stand up against the Apple review process. I will definitely hope to work with Janusz again on iOS projects.”


iOS app development

86 hrs @ $38.89/hr
Earned $3,357
“Janusz is an iOS pro. He not only cares about delivering on time, but delivering the best quality he can.I highly recommend him for serious apps that require a high level of quality.”


Find the URL used by the iPhone&iPad App Store app - when doing a keyword search

Fixed Price $50
“Very happy. Professional approach and quick response. Hence I paid a bonus.”


Interview Software Developers

Fixed Price
No feedback given


Senior iOS Developer

302 hrs @ $35.00/hr
Earned $10,500
Job in progress

Tests Taken
Name Percentile Score

C++ Programming Skills Test (Hands-on programming skills)


English Vocabulary Test (U.S. Version)


Objective C Test


Programming with C Test


U.S. English Basic Skills Test


iOS 6 Programming Skills Test


iPhone Programming OS 4.0 Test


oDesk Readiness Test for Independent Contractors and Staffing Managers