Develop Web-based Staff Management App

I need a developer to create a web-based application focused on business management, specifically for staff management. The app will primarily handle payroll management and performance reviews.

Key Requirements:
- Payroll Management: Track and manage employee salaries, bonuses, and deductions.
- Performance Reviews: Set criteria, schedule, and record employee evaluations.

Ideal Skills and Experience:
- Proficiency in web application development
- Experience with business management tools, especially in payroll and performance review systems
- Strong UI/UX design skills for a user-friendly interface
- Knowledge of data security practices to protect sensitive employee information

Please provide a portfolio showcasing similar projects.