Desktop Application Dev - Data, Reports, Auth

I'm in need of a desktop application developed with a focus on data management, report generation, and user authentication capabilities. While I did not specify a preferred programming language, I need someone versatile in universal languages such as C++, Java, or Python.

Key features and requirements:

- Data Management: The application should seamlessly handle data input, output, storage, and backup.

- Report Generation: A core feature should be to generate real-time, insightful and efficiently formatted reports from the managed data.

- User Authentication: A secure user authentication process is essential, ensuring only authorized users get access to data or functionality.

Ideal Candidate:
- Comprehensive experience in diverse programming languages (C++, Java, Python)
- Expertise in developing applications with data management, report generation and user authentication features.
- Problem-solver with a focus on delivering practical and efficient solutions.

Please provide a portfolio featuring relevant projects. Looking forward to a collaborative partnership.