1. Programming: C, C++, Python programming languages; memory pooling; programming and debugging; state machine design; error handling; traceability; robust interoperability engineering across different UE/chipset/core/network-vendor combinations; ASN.1/protocol decode workflows.

2. MAC Scheduling: Expertise in MAC scheduling algorithms for eNB (LTE) and gNB (5G), including design, development, optimization, and debugging.

3. L2 Protocols: Proficiency in MAC, RLC, and PDCP design and implementation for LTE and NR, including segmentation/reassembly, retransmission, flow control, packet splitting/duplication, ciphering/integrity interaction points, and QoS.

4. Duplex & Scheduling: Understanding of L2 implications of TDD vs. FDD timing for duplex-driven HARQ and scheduler timing, uplink grant strategies, DRX interactions, Buffer Status Reporting (BSR), and Logical Channel Prioritization (LCP).

5. L2 Optimization: Experience optimizing latency, retransmission efficiency, throughput, fairness, DRX/power-saving behavior, and QoS flow-to-radio-bearer mapping.

6. Layer Interfaces & Architecture:



Understanding of L2 interfaces with L1 (Physical Layer) and L3, along with 3GPP RAN split architectural options.

7. Log Analysis: Proficiency in analyzing system logs to diagnose and troubleshoot issues.

8. Specialized Tools: Expertise in QCAT (UE logs), Viavi, IxLoad Wireless, IxNetwork, Spirent Landslide, and Wireshark for testing and debugging.

9. Radio & Virtualized Infrastructure: Understanding of FPGA/SoC-based radio acceleration, SmartNIC/DPU-assisted data paths, DPDK, hugepages, SR-IOV, Linux performance tuning for virtualized DU/CU implementations, and x86/ARM server deployments.

10. KPI & Troubleshooting: Experience diagnosing KPI degradation using L2 traces, PCAPs, timing logs, RF test outputs, protocol decodes, and traffic emulators.

11. Experience: 12 years of L2 software development experience.

12. Program Delivery: Additional experience driving the delivery of 4G/5G L2 programs.

📌 4G/5G Stack-Lead / Engineer (Bengaluru)
🏢 OdiTek Solutions
📍 Bengaluru