Senior Software Engineer, Cross-Platform Client (.NET MAUI / Xamarin)

5+ years of professional software engineering experience Strong experience with .NET / C# in client or application development Experience building cross-platform applications (desktop and/or mobile) Experience with JavaScript and React for web-based UI development Strong understanding of software design patterns and principles Experience optimizing performance in client-side or multi-platform applications Strong debugging and problem-solving skills Experience working in Agile development environments Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience

Design and implement new features for KeeperChat across desktop, mobile, and web platforms Develop and maintain cross-platform applications using .NET / C#, including MAUI-based clients Build and maintain web UI components using JavaScript and React where applicable Optimize application performance, reliability, and user experience across Windows, macOS, iOS, and Android Participate in code reviews and contribute to high standards of code quality and security Collaborate closely with product managers and designers to translate requirements into technical solutions Mentor junior engineers and contribute to a culture of technical excellence