Role - Senior Software Engineer Type - Full Time Location - Remote Salary - OPEN Mobile test probe for 3G, 4G, 5G, and IoT , simulating real-world mobile usage with voice, SMS, and data services. Work is primarily in C/C++ on Linux , building high-performance, multi-threaded applications for telecom testing. Requirements: Bachelor’s in Computer Science or related field. 5+ years in software development, ideally in telecom . Strong C++ , Linux system programming , multi-threading , and data structures skills. Knowledge of AT commands , modem communication, and 3GPP protocols ( SIP, RRC, NAS ). Familiarity with eUICC/eSIM and GSMA standards . Experience with Wireshark , QCAT , and scripting (LUA, Shell, Perl). Strong problem-solving skills, ability to work independently. Nice to have: Experience in telecom test equipment or network optimization.