Networking & Telecommunications Software Engineer

4 hours ago

Chennai, India Lynk Full time

Location: Chennai, India (In-office)Department: Engineering – TelecommunicationsAbout LynkInCommon is hiring on behalf of Lynk, the pioneer of satellite direct-to-device (D2D) technology and the first company licensed by the FCC to operate a space-based cellular network.Lynk enables standard, unmodified phones to connect directly to satellites — tested across all seven continents and approved in 30+ countries. With 40+ operator partnerships, Lynk is scaling globally to connect every person, everywhere.Role OverviewAs a Networking & Telecommunications Software Engineer at Lynk, you’ll design and build the software backbone for the world’s first space-based mobile network. You’ll work across GSM, LTE, and 5G technologies, developing network protocols, implementing core telecom functions, and integrating software-defined radios within a distributed system.Key Responsibilities- Design and implement network protocols and software for signaling, O&M, and testing.- Develop and integrate telecom systems using C/C++, Python, and Linux IPC mechanisms.- Build and optimize protocol stacks and network applications across GSM/LTE/5G.- Conduct unit, integration, and system testing (e.g., Google Test).- Profile, benchmark, and tune system performance.Required Qualifications- Bachelor’s degree in Computer Science, Telecommunications, or related field.- Strong grasp of networking and telecom protocols (TCP/IP, GSM, LTE, 5G).- Proficiency in C/C++ or Python with solid OOP skills.- Experience developing or testing protocol stacks, signaling, or core network applications.- Familiarity with Linux, socket programming, and multithreading.- Understanding of 3GPP systems (MME, HLR, HSS, eNodeB, gNB).Preferred Qualifications- Experience with GSM/LTE/5G system integration and deployment.- Knowledge of SIGTRAN, Diameter, SIP, or related signaling protocols.- Exposure to NFV, Docker/Kubernetes, or cloud platforms (AWS, GCP, Azure).- Hands-on with SDRs, RF testing, or Wireshark/tcpdump.- Strong debugging and performance tuning skills.Soft Skills- Problem-solving mindset with attention to detail.- Collaborative and adaptable in fast-paced environments.- Clear, concise communicator.

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