Mobile APP development

I'm looking for a reliable and experienced app developer to help build our mobile app. Our app will need to be designed for both iOS and Android, and we need it to have an App Store presence as well as server-side integration. We are looking for a candidate who is able to provide thoughtful advice and skillful implementation. The right developer should be familiar with the mobile development process and have at least a few years of experience working on similar projects. The ideal candidate should have an impressive portfolio to show off their best work, and be able to keep up with tight deadlines and communicate effectively throughout the whole project.