Job Title: Senior Layer 2 Developer 4G LTE eNodeB

Experience: 8+ Years

Location: Bengaluru

Job Summary

We are seeking a highly skilled Layer 2 Developer with deep expertise in LTE eNodeB protocol stack development. The role focuses on designing, coding, and optimizing Layer 2 components (MAC, RLC, PDCP) with strong emphasis on real-time performance, scalability, and standards compliance.Key Technical Skills:

- Design, develop and maintain LTE Layer 2(PDCP/RLC/MAC) stack.
- Design and optimize Uplink/Downlink scheduling algorithms (QoS aware, fairness, etc.)• Optimization of Resource allocation block.
- Design, develop and optimization of HARQ process, Power control, SPS, TTI Bundling, Link Adaptation, CA, ENDC.
- Implement L2–L1 interface handling via FAPI / nFAPI: encode/decode primitives, timing synchronization, error handling.
- Implement L2–L3 (RRC) interface: configuration primitives, bearer setup/release, re-establishment procedures.




- Read and translate 3GPP LTE Release 8–17 specifications directly into code, handling edge cases and error conditions.
- Write and maintain unit tests with high code coverage for each developed module.
- Debug L2 protocol issues independently — analyze PCAP captures, L2 traces, and scheduler logs to isolate root causes• Should be able to prepare LLD, HLD and Interface specifications• Expert in C/C++• Solid experience in Linux-based development with IPC and multi-threading

Debugging Tools

- gdb, valgrind
- Wireshark / protocol analyzers
- QXDM

Soft Skills:

- Strong debugging and analytical thinking
- Ownership of features end-to-end
- Ability to mentor junior developers
- Good communication skills

Education:

- B.Tech / M.Tech in Electronics, Telecommunications, Computer Science, or equivalent

📌 Layer 2 Developer-4G/5G (Bengaluru)
🏢 Amantya Technologies
📍 Bengaluru