Mobile Application Developer - Dot NET MAUI - iOS - Android

Mobile Application Developer – .NET MAUI / iOS / Android Work Authorization: US Citizen Location: Remote Position Overview We are seeking an experienced Mobile Application Developer with expertise in .NET MAUI, C#, iOS, Android, SQLite, and offline data synchronization. The ideal candidate will develop and maintain secure, cross-platform mobile applications that support enterprise business operations, including applications used in environments with limited or intermittent network connectivity. The position requires strong mobile development expertise, integration with Azure-hosted APIs, and experience delivering reliable, high-performance mobile applications. Key Responsibilities • Design, develop, enhance, and maintain cross-platform mobile applications using .NET MAUI and C#. • Develop mobile applications supporting iOS and Android devices. • Implement offline-first functionality using SQLite and local data storage. • Design and implement reliable synchronization mechanisms between mobile devices and cloud-hosted backend systems. • Handle synchronization conflicts, interrupted connectivity, data validation, error recovery, and secure data transmission. • Integrate mobile applications with RESTful APIs, API gateways, and Microsoft Azure-hosted services. • Implement secure authentication, authorization, and mobile data protection mechanisms. • Collaborate with UI/UX designers, backend developers, business analysts, and QA teams. • Develop responsive, accessible, and user-friendly mobile interfaces. • Conduct unit testing, integration testing, regression testing, device compatibility testing, and performance testing. • Troubleshoot mobile application defects, performance issues, and synchronization failures. • Support mobile application builds, deployment processes, version management, and production releases. • Participate in Agile ceremonies, sprint planning, technical reviews, and application demonstrations. • Maintain technical documentation, interface specifications, user guides, and release documentation. Required Qualifications • Strong hands-on experience developing mobile applications using .NET MAUI and C#. • Experience building and deploying applications for both iOS and Android. • Experience using SQLite for local storage and offline application functionality. • Strong understanding of offline synchronization, conflict resolution, and data consistency. • Experience integrating mobile applications with RESTful APIs and JSON-based services. • Familiarity with Microsoft Azure and cloud-hosted backend applications. • Understanding of secure mobile development practices and authentication mechanisms. • Experience with Git, CI/CD pipelines, debugging, and mobile testing tools. • Strong troubleshooting, communication, and problem-solving skills. Preferred Qualifications • 8+ years of software development experience, including significant mobile application development. • Experience with enterprise-scale offline-first mobile applications. • Experience with Azure App Services, API Management, and Azure SQL. • Experience migrating Xamarin applications to .NET MAUI. • Familiarity with mobile accessibility and Section 508 requirements. • Experience supporting field-based mobile applications and remote data collection workflows. • Experience working on Federal Government or regulated enterprise projects. • Familiarity with mobile application security, encryption, and device management.