Nokia

5G gNB Layer 2 and Layer 3 Developer

Nokia$110K — $130K *
Telecommunications & Hardware
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 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++, with experience in multi-threaded 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 specifications (Rel-15 and later)
  • Strong debugging skills using tools like Wireshark, TShark, QXDM, etc.

Responsibilities

  • Develop and optimize 5G NR Layer 2/Layer 3 functionalities
  • Implement advanced L2 scheduling algorithms and HARQ mechanisms
  • Collaborate on developing UE and gNB L2/L3 stacks for protocol compliance
  • Enhance network performance by improving throughput, reducing latency
  • Debug and troubleshoot protocol stack behaviors using logs and tracing tools
  • Integrate and test L2/L3 software with the PHY and core network (5GC)

Benefits

  • Flexible work arrangements
  • Professional development opportunities
  • Opportunity to work on innovative technology solutions
  • Chance to shape the future of mobile communication
  • Involvement in groundbreaking projects that set industry standards
Full Job Description
Job Description

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!

Responsibilities

  • 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.


Qualifications

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.

About Nokia

Nokia is a Finnish multinational telecommunications, information technology, and consumer electronics company. The company was founded in 1865 and has since grown to become one of the largest telecommunications equipment manufacturers in the world. Nokia's products include mobile phones, smartphones, and network equipment, among others. The company is committed to innovation and has a strong focus on research and development. Nokia is also committed to sustainability and has set ambitious targets for reducing its environmental impact. The company operates in over 100 countries and has a strong presence in Europe, Asia, and North America.
Learn more about Nokia
Size
87,927 employees
Market Cap
$25.8 billion
Industry
Net Income
-$2.5 billion
Founded
1865
5 Year Trend
-1.2%
Revenue
$21.8 billion
NASDAQ

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