Gsm data receiver for atm/pos systems

I am looking for a skilled freelancer to develop a GSM data receiver for ATM/POS systems. The project requires expertise in GSM technology and knowledge of Windows operating system. Along with ability to encrypt/decrypt, and decode different programming languages.

Specific requirements for the data receiver include:
- Reliable and secure data transmission
- Compatibility with Windows operating system
- Ability to receive and process data from ATM/POS systems
- Real-time monitoring and tracking of data


Ideal skills and experience for this job:
- Strong understanding of GSM technology
- Proficiency in Windows programming and development
- Experience working with ATM/POS systems
- Knowledge of data encryption and security measures

If you have the necessary skills and experience, and can meet the specific requirements mentioned, I would love to hear from you.