Develop, optimize, and integrate 5G NR L2/L3 protocol stacks (MAC, RLC, PDCP, RRC, NGAP). Implement scheduling, HARQ, buffer management, and mobility features. Debug protocols using tracing tools and integrate L2/L3 with PHY and 5GC to improve throughput, latency, and handover performance.
Join our Strategy and Technology Space Communication Solutions team as a 5G gNB Layer 2 and Layer 3 (L2/L3) Developer and play a pivotal role in advancing 5G technology! Collaborate closely with systems engineers, testers, and hardware teams in a hybrid work environment, tackling challenges in 5G NR L2/L3 development. You'll contribute to a forward-thinking team that drives innovative technology solutions, shaping the future of mobile communication. Enjoy a flexible work arrangement, professional development opportunities, and the chance to work on groundbreaking projects that set new industry standards. Join us in creating lasting value in the world of telecommunications!
- Develop and optimize 5G NR Layer 2/Layer 3 functionalities including MAC, RLC, PDCP, RRC, and NGAP.
- Implement advanced L2 scheduling algorithms, HARQ mechanisms, and efficient buffer management.
- Collaborate on the development of UE and gNB L2/L3 stacks, ensuring robust protocol compliance and performance.
- Optimize network performance by enhancing throughput, reducing latency, and improving handover processes.
- Debug and troubleshoot protocol stack behaviors using logs and advanced tracing tools.
- Integrate and test L2/L3 software with the physical layer (PHY) and core network (5GC) to ensure seamless operations.
You have:
- 3+ years of experience in 5G NR or LTE RAN development (L2/L3)
- Bachelor's or Master's Degree in Computer Science, Electrical Engineering, Telecommunications, or a related field.
- Strong programming skills in C, C++, and experience with multi-threaded and real-time systems.
- Deep understanding of MAC, RLC, PDCP, RRC, NGAP protocols.
- Experience with L2 scheduling, HARQ, QoS, and mobility management.
- Familiarity with 3GPP (Rel-15 and later) specifications.
- Strong debugging skills with tools like Wireshark, TShark, QXDM, or similar.
- Experience in real-time OS (RTOS) or Linux kernel networking stack.
It would be nice if you also had:
- Knowledge of DPDK, VPP, or other high-performance packet processing frameworks is a plus.
- Experience in O-RAN, Open RAN, or vRAN architectures is a plus.
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What you need to know about the Los Angeles Tech Scene
Los Angeles is a global leader in entertainment, so it’s no surprise that many of the biggest players in streaming, digital media and game development call the city home. But the city boasts plenty of non-entertainment innovation as well, with tech companies spanning verticals like AI, fintech, e-commerce and biotech. With major universities like Caltech, UCLA, USC and the nearby UC Irvine, the city has a steady supply of top-flight tech and engineering talent — not counting the graduates flocking to Los Angeles from across the world to enjoy its beaches, culture and year-round temperate climate.
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