Dear to whom it may concern,
thank you for your detailed brief, it explains big number of details and makes applying for the job even easier.
Following my experience in project management for mobile app development, I'm familiar with the concept of testing and reporting issues.
I have no trouble obtaining everything needed for the project. Some questions might arise but that can be resolved later.
I do not have a problem signing NDA and I'm truly interested to make this partnership long term.
And not to forget, I live in Zagreb.
Hopefully, everything said makes me an interesting candidate and I'm happy to answer all of your questions.
Best regards,
Vanja