Onsite employee management system

I am looking for a freelancer to develop an onsite employee management system using React. The system should have the following features:
- Attendance tracking
- Time-off management
- Performance evaluation

The system should be accessible on both desktop and mobile platforms.

Responsibilities:

Design and develop an onsite employee management system using React
Create user interfaces that are user-friendly and intuitive
Integrate with existing systems and databases
Test and debug the system
Document the system
Qualifications:

2+ years of experience in React development
Strong understanding of React concepts and best practices
Experience with user interface design
Experience with integrating with existing systems and databases
Excellent problem-solving and debugging skills
Ability to work independently and as part of a team
Timeline:

Deliverables:

The final product will be a fully functional onsite employee management system.
The system will be documented and easy to use.
The system will be integrated with existing systems and databases.
Please provide examples of similar projects you have worked on.