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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Mobile Application Developer - 27283 - **Company:** Impact - **Location:** Grand Rapids, MI, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Flutter, Apple Watch, Java (Programming Language), JavaScript (Programming Language), Adobe Photoshop, Application Programming Interfaces (APIs), Android Software Development, Android Studio, Apple IOS, Apple Xcode, Computing Platforms, App Store (IOS), Bluetooth, C Sharp (Programming Language), Mobile Application Development, Computer Engineering, Design of User Interfaces, Graphics Software, Hypertext Transfer Protocols (HTTP), Mobile Application Software, Software Engineering, Systems Integration, TypeScript, Garmin, Backend, Git, Kotlin, Information Technology, Dart, React Native, Restful APIs, Wearables, Api Management, Programming Languages - **Published:** May 20, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=5fbfe872fe037f33 ## About the Role Do you have experience in iOS application development?, * Bachelor's degree required, with a strong preference in Computer Engineering, Computer Science, or Electrical Engineering. * Experience with native languages/IDE's as well as cross-platform languages/frameworks: * Swift / Xcode * Kotlin, Java / Android Studio * Dart, JavaScript, TypeScript, C# / Flutter, React Native * 5+ years' experience in iOS and Android development. * Experience integrating mobile applications with backend services, including strong knowledge of RESTful APIs, HTTP protocols, and third-party API integrations. * Understanding of security best practices for mobile application development and different authentication schemes. * Experience navigating application distributions (e.g., App store submissions, ad-hoc beta deployments, DMD enterprise apps). * Practical experience with different connectivity standards (e.g., Bluetooth, NFC, etc.) Solid understanding of Git and how to effectively use it as a team. * Mentor colleagues in your areas of expertise. * Unrestricted right to work in the US without requiring sponsorship. WHAT'S A BONUS TO HAVE: * Experience with design and development of applications for wearable devices, including: * Apple Watch using WatchKit. * Wear OS for Android-based wearables. * Garmin devices using the Garmin Connect IQ SDK and APIs. * Ability to use Sketch, Photoshop or other graphic design tools to create mock-ups and extract assets. * Understanding of UI/UX principals and best practices. ## Description Our client is an embedded systems engineering firm trusted by innovators building technology where performance, safety, and reliability matter most. This is an onsite/hybrid direct hire position located in Grand Rapids, MISeeking an experienced Senior Mobile Application Developer, to help grow our current team. In this role, you will work alongside other talented engineers as you help develop our connected Medical and IoT products. This position will provide you with opportunities to participate with others to architect the design across the full product and consider cross-training into new areas to further grow your own expertise. WHAT YOU WILL BE DOING: * Design, develop, and deploy mobile applications that run on iOS and Android platforms using either native programming languages (Swift, Kotlin/Java) for each platform and/or cross-platform technologies (Flutter, React Native). * Collaborate and coordinate with designer and developer teams to create a seamless solution for customers. * Interface directly with the customer to guide the development process. * Work with sales to: * Develop business relations with new and existing customers * Provide detailed work estimates for new business proposals * Showcase project highlights ## Related Videos - [Intro to Flutter Development](https://www.wearedevelopers.com/videos/170-intro-to-flutter-development) - [Dart - a language believed dead, experiences a new bloom](https://www.wearedevelopers.com/videos/442-dart-a-language-believed-dead-experiences-a-new-bloom) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [There's an app for that - on the role of cross platform development in the app development ecosystem](https://www.wearedevelopers.com/videos/278-there-s-an-app-for-that-on-the-role-of-cross-platform-development-in-the-app-development-ecosystem) - [Using Serious Tech for a Silly Game - How to Build an MVP with Flutter](https://www.wearedevelopers.com/videos/728-using-serious-tech-for-a-silly-game-how-to-build-an-mvp-with-flutter) - [Applying DevOps in Flutter mobile development](https://www.wearedevelopers.com/videos/60-applying-devops-in-flutter-mobile-development) ## Related Articles - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [Flutter Developer Salary [2023]](https://www.wearedevelopers.com/magazine/199-flutter-developer-salary-2023) - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025)