1 month ago
USA (city not specified)Mid Level
H1B sponsor
Responsibilities
- Develop and optimize 5G NR Layer 2 and Layer 3 functionality across MAC, RLC, PDCP, RRC, and NGAP.
- Implement L2 scheduling algorithms, HARQ mechanisms, and efficient buffer management.
- Develop and maintain UE and gNB L2/L3 protocol stacks for compliance and performance.
- Optimize throughput, latency, and handover processes.
- Debug and troubleshoot protocol stack behavior using logs and tracing tools.
- Integrate and test L2/L3 software with the PHY and 5G core network.
- Collaborate with systems engineers, testers, and hardware teams in a hybrid work environment.
Requirements
- At least 3 years of experience in 5G NR or LTE RAN L2/L3 development.
- Bachelor's or master's degree in Computer Science, Electrical Engineering, Telecommunications, or a related field.
- Strong programming skills in C and C++, including experience with multithreaded and real-time systems.
- Deep understanding of MAC, RLC, PDCP, RRC, and NGAP protocols.
- Experience with L2 scheduling, HARQ, QoS, and mobility management.
- Familiarity with 3GPP Release 15 and later specifications.
- Strong debugging skills using Wireshark, TShark, QXDM, or similar tools.
- Experience with a real-time operating system or the Linux kernel networking stack.
- Knowledge of DPDK, VPP, or other high-performance packet-processing frameworks is preferred.
- Experience with O-RAN, Open RAN, or vRAN architectures is preferred.
Benefits
- Hybrid work environment with a flexible work arrangement.
- Professional development opportunities.
- Opportunity to work on innovative 5G telecommunications projects.
About Nokia
Nokia builds telecom network equipment and software—covering mobile (4G/5G RAN and core), IP and optical networking, fixed access, and related services—for communications service providers, enterprises, and governments. The company also conducts advanced research through Nokia Bell Labs. Founded in 1865 and headquartered in Espoo, Finland, Nokia is a public company with global operations and long-standing relationships with major mobile network operators worldwide.