We are seeking a Senior or Principal Engineer to lead critical Run-the-Business activities while driving modernization initiatives across a portfolio of enterprise mobile applications and supporting backend services.

This role will be responsible for leading a strategic initiative to remove the Scandit SDK from multiple i OS applications and replace it with native i OS camera scanning capabilities. In addition, the engineer will support application enhancements, modernization efforts, ongoing maintenance, and production operations for both mobile applications and their Java/Web Sphere backend services.

The idóneo candidate is a hands-on engineer with experience across i OS,. NET MAUI, C#, Java, Web Sphere, databases, and enterprise mobile deployments, capable of supporting both front-end mobile applications and the backend systems that power them.

Key Responsibilities

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

- 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 i OS experience (nice to have)
- Application release management for mobile apps, including enterprise distribution and Test Flight
- Regression testing and impact analysis for service and data changes.

Overall Responsibilities

SMobile Application Development & Modernization





- Develop, maintain, and enhance enterprise i OS applications using C#,. NET MAUI, and Xamarin.i OS.
- Participate in Xamarin-to-. NET MAUI migration initiatives.
- Design, develop, and support native i OS camera and barcode scanning functionality.
- Perform device compatibility testing and i OS 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 Test Flight.
- Configure and support VMware Air Watch (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 Web Sphere 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 Dyna Trace 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.

Required Qualifications
- 5+ years of software engineering experience with mobile and backend applications.
- 3+ years of i OS development experience using Xcode and the i OS 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 Web Sphere and legacy enterprise environments.
- Working knowledge of SQL and database troubleshooting (DB2, Oracle, or SQL Server).
- Experience with enterprise mobile application deployment, including Air Watch/Workspace ONE, Apple certificates, provisioning profiles, and Test Flight.
- Experience migrating Xamarin applications to. NET MAUI.
- Experience implementing native i OS barcode scanning using AVFoundation, Vision, or Vision Kit.
- 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

Benefits
- Contrato a largo plazo.
- 100% Remoto.
- Vacaciones y PTOs
- Posibilidad de recibir 2 bonos al año.
- 2 revisiones salariales al año.
- Clases de inglés.
- Equipamiento Apple.
- Plataforma de cursos en linea
- Budget para compra de libros.
- Budget para compra de materiales de trabajo
- mucho mas..

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📌 Senior Mobile & Full-stack Engineer (.net Maui / Ios / Java) (México)
🏢 Improving South America
📍 México