IMS Core Development Engineer
Location: Hyderabad / Bangalore / Chennai / Kolkata
Experience: 5 to 12 Years

Job Overview
We are hiring an IMS Core Development Engineer with robust expertise in IMS architecture, SIP signaling, VoLTE/VoWiFi, and telecom core network development. The role involves developing and optimizing IMS network elements for next-generation communication services.
Key Responsibilities
• Develop and enhance IMS core nodes such as P-CSCF, I-CSCF, S-CSCF, TAS, SBC, MGCF, MRF, and BGCF.
• Design SIP-based call control, registration, and session management functionalities.
• Work on VoLTE, VoWiFi, eSRVCC, and emergency call handling features.
• Develop Diameter-based interfaces for authentication, authorization, and charging.
• Troubleshoot SIP signaling,



media path, and IMS interoperability issues.
• Support performance optimization, automation, and CI/CD activities.

Required Skills
• Strong knowledge of IMS, SIP, SDP, RTP, and Diameter
• Hands-on experience with VoLTE / VoWiFi call flows
• Proficiency in C/C++, Java, Python, or Shell Scripting
• Experience with Linux, Docker, Kubernetes, VMware/KVM
• Knowledge of Wireshark, SIP debugging, BHCA/TPS, and capacity planning
• Understanding of 3GPP IMS standards and telecom protocols

Thanks & Regards,
Md Shahid, TCS

📌 IMS Core Development Engineer (Hyderabad)
🏢 Tata Consultancy Services
📍 Hyderabad