Senior Mobile & Full-Stack Engineer (.NET Maui / iOS / Java)

SMobile Application Development & Modernization

• Develop, maintain, and enhance enterprise iOS applications using C#, .NET MAUI, and Xamarin.iOS.
• Participate in Xamarin-to-.NET MAUI migration initiatives.
• Design, develop, and support native iOS camera and barcode scanning functionality.
• Perform device compatibility testing and iOS version upgrade validation.
• Conduct regression testing and impact analysis for application, service, and data changes.

Application Release Management

• Manage mobile application releases through enterprise distribution platforms and TestFlight.
• Configure and support VMware AirWatch (Workspace ONE UEM) deployments.
• Maintain Apple provisioning profiles, distribution certificates, and application signing processes.
• Coordinate production releases and deployment activities.

Backend Services Support

• Support and maintain Java-based backend systems running on IBM WebSphere Application Server.
• Troubleshoot and enhance REST and SOAP services.
• Analyze and resolve application integration issues.
• Work with legacy Java applications and web technologies when required.

Production Support & Maintenance

• Investigate and resolve production incidents.
• Monitor application performance using DynaTrace or similar APM tools.
• Participate in incident, problem, and change management processes.
• Support continuous improvement and operational stability across mobile and backend applications.

Database & Data Support

• Create and troubleshoot SQL queries.
• Support DB2, Oracle, SQL Server, and SQLite data environments.
• Investigate data integrity and performance issues.
• Assist with troubleshooting data flows connected to enterprise and mainframe systems.

Backend development in Java, including enterprise services on application servers such as WebSphere

• Relational databases, including advanced SQL on DB2 and Oracle
• API integration with REST and SOAP services, including tracing and troubleshooting
• Legacy code maintenance: reading, refactoring, and modernizing established Java codebases
• Frontend development with Angular and familiarity with Linux-based environments
• Production troubleshooting using APM tools such as Dynatrace, along with log analysis
• Incident and change management in ITSM platforms
• Cross-platform and mobile development with C# and .NET MAUI, with native iOS experience (nice to have)
• Application release management for mobile apps, including enterprise distribution and TestFlight
• Regression testing and impact analysis for service and data changes.
• 5+ years of software engineering experience with mobile and backend applications.
• 3+ years of iOS development experience using Xcode and the iOS SDK.
• Hands-on experience with C#, .NET, and Xamarin/.NET MAUI.
• Strong experience supporting and troubleshooting Java applications and REST/SOAP services.
• Experience with IBM WebSphere and legacy enterprise environments.
• Working knowledge of SQL and database troubleshooting (DB2, Oracle, or SQL Server).
• Experience with enterprise mobile application deployment, including AirWatch/Workspace ONE, Apple certificates, provisioning profiles, and TestFlight.
• Experience migrating Xamarin applications to .NET MAUI.
• Experience implementing native iOS barcode scanning using AVFoundation, Vision, or VisionKit.
• Experience replacing third-party mobile SDKs such as Scandit.
• Familiarity with Angular, Vaadin, JSP, Struts, or SUSE Linux environments.
• Experience working in large enterprise environments supporting mission-critical applications