IMS/ Telephony Developer

Job Title: IMS/Telephony Developer (C, Data Structures, OS & Networking)
Experience Required: 2 – 8 Years
Work Location: Client Site – Noida
Work Mode: Work from Office (5 days a week)
Notice Period: Immediate to 30 Days

Job Overview:
We are seeking experienced and passionate developers with strong foundations in C programming and data structures, who also possess solid knowledge of Operating System concepts and Networking. The ideal candidate will contribute to the development and maintenance of telecom protocol stacks, particularly in IMS/Telephony and 4G/5G wireless technologies. This position requires hands-on experience with Linux or RTOS environments, and readiness to work on-site at our client location in Noida.

Key Responsibilities:

• Design, develop, and maintain modules in C, focused on telecom and networking applications.
• Work on protocol stack development for IMS, VoLTE, and 4G/5G technologies (Layers 3-5).
• Implement and optimize code for real-time systems using Linux or RTOS platforms.
• Collaborate with cross-functional teams to define and implement features based on IMS/Telephony requirements.
• Utilize strong understanding of Operating System internals, multithreading, memory management, and network protocols (TCP/IP, SIP, RTP, etc.).
• Perform unit testing, debugging, and performance tuning of developed code.
• Participate in code reviews and documentation of designs and implementations.
• Ensure compliance with quality and performance standards throughout the software development lifecycle.

Mandatory Skills:

• Minimum 2+ years of experience in C programming and data structure implementation.
• Strong foundation in Operating System concepts and Networking protocols.
• Experience working with Linux or RTOS, including system-level programming and development tools.
• Willingness to work on-site in Noida and be available 5 days a week in-office.

Preferred Skills:

• IMS/Telephony protocol development experience (minimum 2 years preferred).
• Hands-on exposure to 4G/5G protocol stacks—preferably Layer 3 to Layer 5.
• Experience in SIP, SDP, RTP/RTCP, and Diameter protocols.
• Familiarity with debugging tools like GDB, Wireshark, Valgrind, etc.

Soft Skills:

• Good communication and documentation skills.
• Ability to work independently as well as in a team-oriented, collaborative environment.
• Analytical thinking and strong problem-solving abilities.

Job Types: Full-time, Permanent

Pay: ₹356,630.00 - ₹1,502,726.06 per year

Benefits:

• Health insurance
• Provident Fund

Work Location: In person