About the position
Join our dynamic Strategy and Technology Space Communication Solutions team as a 5G UE PHY Developer, where you will collaborate closely with systems engineers, testers, and hardware teams in a hybrid work environment. You'll play a key role in inventing groundbreaking technologies and delivering proof-of-concept systems that unlock growth opportunities for Nokia in new markets. As a developer of wireless communications, signal processing, and embedded systems, you will design, develop, and optimize the Physical Layer (PHY) for 5G NR User Equipment (UE). Your hands-on expertise in PHY implementation, debugging, and optimization will help us innovate. Enjoy professional growth opportunities, and the chance to be at the forefront of innovation in the telecommunications industry. Join us and help shape the future of connectivity!
Responsibilities
- Develop and optimize PHY layer software for 5G NR UE, ensuring compliance with 3GPP specifications (Rel. 15, 16, and beyond).
- Implement advanced PHY layer algorithms for channel estimation, equalization, synchronization, and channel coding (LDPC/Polar codes).
- Conduct PHY layer testing using simulation tools, software-defined radios (SDR), and real-world network environments.
- Analyze and debug PHY layer performance issues utilizing MATLAB, C/C++, and RF test equipment.
- Integrate PHY layer software seamlessly with Layer 2 (MAC) and Layer 3 (RRC) components.
- Collaborate with hardware teams to support DSP, FPGA, or ASIC-based implementations.
- Optimize PHY layer performance to achieve latency, throughput, and power efficiency targets for UE.
Requirements
- 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.
Nice-to-haves
- 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.
Benefits
- Continuous learning opportunities
- Well-being programs to support you mentally and physically
- Opportunities to join and get supported by employee resource groups
- Mentoring programs
- Highly diverse teams with an inclusive culture
