How to Hire the Right iPhone App Developer USA?

Hey everyone, I’m planning to hire iPhone app developer USA, but I want to make sure I choose the right person or team for the job. I need someone who understands the latest iOS technologies, follows best coding practices, and can deliver a scalable app. What factors should I consider when hiring an iPhone app developer in the USA? Should I focus on experience, technical skills, or client reviews? Also, what’s the best way to assess a developer’s ability before signing a contract? If you have any hiring tips or recommendations, I’d love to hear them. Thanks!