Backend Developer (.NET MAUI Mobile Developer)

Requirements 3+ years of experience with .NET / C#, including at least 1–2 years of experience developing mobile applications with .NET MAUI or Xamarin.Forms.Strong command of C# and the .NET ecosystem, with working knowledge of .NET Framework for legacy applications.Proven experience building and releasing mobile applications for Android and iOS using .NET MAUI.Solid understanding of MVVM, data binding, dependency injection, and navigation patterns.Experience consuming RESTful APIs and handling offline or intermittent connectivity in mobile applications.Experience with ASP.NET Core Web API, Entity Framework, and LINQ.Knowledge of SQL Server and database design.Familiarity with Git-based workflows and branching conventions.Strong understanding of object-oriented design and SOLID principles.Good understanding of async/await, threading, and mobile app responsiveness.Familiarity with mobile app lifecycle, permissions, push notifications, and local storage.Experience with App Store and Google Play Store submission, signing, and release processes.Knowledge of secure coding practices, including input validation and secure storage of tokens and credentials.Skilled in debugging and profiling mobile performance issues, such as slow startup, memory growth, and UI stuttering.Experience with React Native or Flutter will be a plus.Experience with React for web front-end development will be a plus.Possess strong English communication skills, both written and spoken.Willingness to relocate and work onsite in Yogyakarta. Responsibilities Development of SoftwareSeni’s products.Work as a team to investigate and resolve issues. ⚠️ Note: This position requires fluency in English, as most communication will be conducted in English. If you’re confident (or eager to grow) in using English at work, this position could be a great fit. Disclaimer: By submitting your application, you consent to PT Software Services Indonesia collecting and processing your information for recruitment purposes. Please submit only your CV/resume at this stage; do not attach additional personal identification or sensitive documents. Your details will be treated with strict confidentiality and used solely to evaluate your application for current or future employment opportunities with us.