ios engineer

I am looking for an experienced iOS engineer to build an app with payment functionality. I have wireframes and design mockups available for the project, and I'm looking for it to be completed within 3 months. The main functionality I would like for the app is payment features. The engineer should be comfortable integrating with third-party APIs and have a deep knowledge of Swift and Apple's development guidelines. Experience with related technologies such as UI/UX design, RESTful APIs, Cloud Services, Continuous Delivery, Analytics and/or Quality Assurance is a plus. I expect excellent communication between the engineer and myself throughout the project so that expectations are set and expectations are met. Responsiveness and attention to detail is a must. If you have the skills and experience necessary to complete this project, please contact me right away.