Senior Software Engineer - Networking & Telecommunications

Location : Chennai, India (In-office) Department : Engineering – Telecommunications

About Lynk

InCommon 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 Overview

As 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.