CSG

Test Engineer, Mobile Network Software

CSG

full-time

Posted on:

Origin:  • 🇮🇳 India

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Job Level

JuniorMid-Level

Tech Stack

IoTLinuxLuaPerl

About the role

  • Test and validate our software across 3G, 4G, IMS, 5G, IoT mobile network technologies
  • Troubleshoot issues related to network connectivity, signaling, and protocol behavior
  • Analyze logs and trace data to pinpoint software bugs or network anomalies
  • Collaborate with the development team to reproduce and resolve complex issues
  • Develop and execute test plans for new features, updates, and integrations
  • Maintain test environments including devices, SIMs/eSIMs
  • Work from Home, in-office, or hybrid (location listed as IN.Bangalore.Remote and India Remote)

Requirements

  • Completed University degree in a relevant field
  • Multiple years of experience in telecom software testing
  • Good knowledge of mobile network technologies (3G, 4G, IMS/VoLTE, 5G, IoT) and network signaling (e.g. SIP, RRC, NAS) as defined in 3GPP
  • Strong skills in issue troubleshooting, log analysis, and bug reporting
  • Experience with telecom test tools and protocol analyzers like Wireshark, QCAT
  • Familiarity with Linux and AT modem commands
  • Ability to work independently and communicate effectively with customers and internal teams
  • Fluent in English (written and spoken)
  • Bonus Skills Familiarity with C++ code, automation and scripting languages, e.g. LUA, Shell, Perl
  • Experience with eUICC/eSIM platforms and GSMA standards
  • Knowledge of telecom certification or interoperability testing