Healthcare Staff Rostering System Development

I am in need of a freelancer who has experience creating a staff rostering system, specifically for the healthcare sector. The ideal candidate should have a pre-existing example to showcase, which would facilitate a quick turnaround for this project.

Key Functionalities:
- Shift swapping
- Overtime tracking
- Vacation management
- Finance
- Invoicing
- Shift Monitoring
- Care Management

Platform Compatibility: The system should be accessible and fully functional across Web, Mobile, and Desktop platforms.

Skills & Experience:
- Proven experience in developing staff rostering systems, preferably for the healthcare industry.
- Ability to demonstrate a working example of a similar project.
- Proficiency in cross-platform development.
- Familiarity with the key functionalities listed above.