L2 5G Developer - 3GPP Protocol
First seen by Alion on Sep 22, 2026.
Role & responsibilities :
Looking for a skilled 5G L2 (Layer 2) Protocol Stack developer to contribute to development & maintenance of 5G NR protocol stack aligned with 3GPP standards.
Tech Stack :
- L2, MAC, PDCP, RLC, 5G Architecture, C, C++, Debugging
Key Responsibilities:
- Knowledge of 5G NR L2 protocols - MAC, RLC and PDCP layers with experience in developing wireless communication systems
- Understanding NR MAC functions as per 3GPP specifications like RACH, Timing Adjustment (TA) UL/DL HARQ, Multiplexing/Demultiplexing, CA, dual connectivity (ENDC)
- Understanding of Key functions TDD, FDD & procedures as 3GPP specs
- Development aspects of L2 data path & buffer management
- Implementation of AM/UM/TM mode functions (retransmission, reordering, reassembling)
- Management of RLC/PDCP windowing mechanism as per 3GPP state variables
- Header compression, ciphering/integrity, and data flow management
- End to End validation with protocol stack
- Proficient in C/C++ programming
- Strong analytical and problem solving skills with debugging expertise
Skills
5G, C, C++, Debugging, 3GPP, RLC Circuit, System Validation