If you looking for someone to troubleshoot and fix the problem when migrating to the new machines. I think you found one here. Since I first works with my company, I've got myself a few times upgrades from the company and I have migrated my work to 3 different machines.
Here what I will do if you hire me:
1. Identify the problem and let you know what you can do in the future if the same problem occurs.
2. Fix the migration problems so your works can be simulated and run properly.
3. See into the XCode setting to make sure you will be less likely to face the same problem in the future.
That's all but surely, do let me know what else I can do to help you. Thanks for reviewing my proposal, looking forward to hear from you soon.
Regards,
Saiful Afiq
Professional iOS Developer