Hello sir,
I'm a passionate iOS programmer with about two years of experience by now. I'm good at writing clean, organized code.
I have worked on many projects that involved fixing bugs in applications, so I can easily handle other people's code and I have experience in bug fixing. I think those two skills are essential for the job.
The error you get, "nested push animation can result in corrupted navigation bar" is a quite common one that might happen because of two or three reasons only. I fixed this type of error before.
I can help you solve it really fast!
With kind regards,
Stefan