1. UPF (User Plane Function) 3 8 years of exp (20 resources ; Location No Preference) Design & development of fast path/data plane/User plane Software for next generation 5G systems Performance profiling and tuning software on different architectures Work on Intel’s DPDK and Cisco’s Vector packet processing (VPP) Skills Needed: Should have very good C programming skills Should have prior experience in working fast path/control plane application Good understanding of Operating System concepts and x86 architecture Should have good data structure/algorithm skills Should have a fair understanding of networking domain and TCP/IP protocols Good team player and curiosity to learn Knowledge of any network packet processing system, 4G/5G Network is highly recommended 2. C++ Developer (3 to 8 years of relevant development experience (30 resources; Location No Preference) Development experience on HLR/HSS/UDM/AUSF/EIR/DRA/SBC Strong C++ programming skills using C++11/14/17 on x86+Linux Platform Thorough with Operating System concepts Fully conversant with POSIX APIs for File I/O, Socket I/O, Multi threading Should have good data structure/algorithm skills Comprehensive knowledge and hands on experience of STL and Boost libraries Hands on experience of debugging and performance tools e.g. gdb, ASAN, TSAN, LSAN, gprof, v Tune etc. Working knowledge of GNU toolsets 8/9/10 Domain Knowledge for 1&2 Aware of 3GPP EPC, 5GC and IMS architecture Fully conversant with 3GPP standards Stage 1/2/3 of control plane nodes 3. AMF/SMF, MME, SAE GW (30 resources; Location No Preference) Candidate should have 3 to 7 years of experience in the below areas 1. Working experience in telecom domain e.g. IMS, 4G EPC core, 5G Core etc. 2. Working experience in core network Protocols e.g. NGAP, S1AP, HTTP2.0, GTP C, PFCP, SIP, Diameter 3. In depth understanding of C/C++ programming concepts 4. Good knowledge of Linux/Unix internals, multi threading, sockets, IPCs and shell scripts 5. Good knowledge of Operating System and Networking (e.g. UDP/TCP/IP) concepts 4. Embedded Software a) Requirement for Debugging (5 resources, location No Preference) Experience of 2/3 years working on Linux (for debugging field issues to support our development team with initial debugging) Expertise on Xilinx Ultrascale and NXP PCIe b) Requirement for development (20 resources, location No Preference) Experience of C programming with experience of 2/3 years Experience of Linux/Yocto OS Knowledge of Embedded Concepts Expertise on Xilinx Ultrascale FPGA, NXP LX series, Qualcomm FSM Chipset 5. 5G L2/L3 resources (50 resources, Location No preference) 6. 5G ORAN Testing & Integration engineer (20 resources, Location No preference) 7. Java Resources ( 20 Nos) 20 resources for Java, who have worked in the network domain (SIP, DIAMETER etc).
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