I'm in need of an experienced engineer familiar with OpenBTS (or YateBTS), Open-UMTS, OpenLTE, GNURadio, OpenAirInterface, or similar platforms. Understanding GSM, CDMA, LTE is mandatory as I am aiming to build a versatile IMSI-Catcher. Key Responsibilities: - Implement call monitoring, SMS interception, Silent SMS, and location tracking features - Develop both blacklist and whitelist functionality - Ensure compatibility with GSM, CDMA, LTE, UMTS, and 5G standards Deployment will be on USRP boards (B210). Therefore, experience with this particular hardware would be a significant advantage. Your strategic and practical insights are crucial for the effective execution of this project. Expertise in leveraging advanced solutions within strict compliance boundaries is a must.