Modification for software on computer scanning barcodes issue

I am looking for a skilled developer to modify our software on a computer scanning barcodes issue. The software is used for data entry and scanning barcodes, but it is currently unable to scan 16-digit barcodes.

Specific Barcode Format:
The issue lies with a specific barcode format that our software is unable to scan.

Deadline:
We need this modification completed as soon as possible.

Ideal Skills and Experience:
- Proficient in software development and modification
- Experienced in barcode scanning and data entry systems
- Familiarity with inventory management or point of sale software is a plus