Amendment in Payroll Management Software for Contractual Workers

I'm looking for a freelancer with experience in customizing payroll management software to make specific amendments for our contractual workers.

Key Responsibilities:
- Update employee information in the system.
- Add new payment calculations based on our requirements.
- Generate custom reports as needed.

Ideal candidates will have a solid understanding of payroll management, particularly in a contractor setting. Your ability to make these adjustments swiftly and accurately is crucial.

Please provide a quotation and timeline for this project. Thank you.