4G/5G Core C++ Developer

We are actively looking for experienced C++ Developers with strong hands-on experience in 4G/5G Core Network development, particularly Control Plane and Network Programming.

⚡ Immediate Joiners are highly preferred.

Key Requirements:

Strong programming skills in C/C++

Strong knowledge of Data Structures, Algorithms & OOPS

Hands-on experience in Socket Programming – TCP/UDP, Non-blocking I/O

Experience with 3GPP message handling, parsing and protocol processing

Strong hands-on experience in 4G/5G Core Control Plane

Experience with MME, SGW, PGW, HSS, PCRF, AMF, SMF, UPF, UDM, AUSF, PCF, NRF

Strong knowledge of Diameter, SIP, GTP-C, GTP-U, PFCP, NAS/NGAP, S1AP, HTTP/2

Understanding of N1, N2, N3, N4, N6, S1-MME, S1-U, S5/S8 interfaces

Good understanding of 4G/5G Core Control Plane procedures and call flows

Strong networking fundamentals: TCP/IP, UDP, Routing, ARP, VLAN, Subnets, L2/L3

Hands-on Linux development using GCC, GDB, Make and debugging tools

Experience in low-level debugging, packet flows and performance optimization

Responsibilities:

Develop software modules for 4G/5G Core Network systems

Implement and optimize Control Plane protocol logic

Work on end-to-end Control Plane call flows

Debug low-level issues in Control Plane packet flows and system behaviour

Collaborate with QA/DevOps for network component integration

Priority: Candidates who can join immediately / within a short notice period.

Please ensure the profiles have hands-on 4G/5G Core Networking + Control Plane experience, along with relevant C/C++ development experience

Skills:- C++, Socket Programming, TCP/IP & UDP, Non-Blocking I/O, Performance Optimization, LTE, 4G/5G Core Network, Network Security, Core Data, Control Plane, 3GPP, Telecom Protocol Development, Network programming, DIAMETER, GTP-C, GTP-U, MME, SGW, PGW, HSS, PCRF, AMF, SMF, UPF, UDM, AUSF, PCF, NRF, N1, S5/S8, L2/L3 Networking and Telecom Protocols