PCB Modification and Design Assistance

I need help modifying an existing PCB design. I have a similar PCB and all necessary files.

Required Modifications:
- Add new components (resistors)
- Change layout
- Update connections

Ideal Skills and Experience:
- Proficiency in PCB design software
- Experience with component addition and layout modification
- Familiarity with resistor specifications and connections
- Strong attention to detail and accuracy