JavaScript Decryption Script Needed

I'm in need of an experienced JavaScript developer who can help develop a decryption script for my project.

Key Requirements:
- The script should be able to decrypt sensitive information contained in text documents.

Ideal Candidate:
- Proficient in JavaScript and data encryption/decryption.
- Previous experience working on decryption scripts.
- Familiarity with handling sensitive data securely.

Please note that the source of the encrypted data is yet to be determined. Your expertise in the field will be crucial as we establish this aspect.