Enhance Functionality: Expenses Module Upgrade

I'm looking for a skilled professional to enhance the functionality of my existing web application. Part of the project involves augmenting our expenses module by creating a Payout form. Notably, the Payout form needs to be designed with an additional field that captures 'Commissions'.

Ideal skills and experience:
- Proficiency in user role management
- Experience in designing intuitive, user-friendly interfaces
- Knowledge of database optimization techniques and best practices
- Background in integrating third-party services into existing applications
- Proven track record in application functionality upgrade projects.