1 month ago
Responsibilities
- Develop embedded software for 5G Core network functions including AMF, SMF, UPF, AUSF, UDM, PCF, and NRF.
- Implement and maintain 5G protocols and procedures including NAS, NGAP, PFCP, and GTP-U.
- Design high-performance software using C, Go, and Rust for embedded Linux systems on ARM-based platforms.
- Create packet-processing components with DPDK and optimize latency, throughput, CPU usage, and memory efficiency.
- Debug complex protocol, system, and performance issues using advanced debugging and network-analysis tools.
- Collaborate with cross-functional teams to ensure seamless system integration and stay current with 5G Core technologies.
Requirements
- Extensive experience with 5G Core architecture and call flows.
- In-depth knowledge of 3GPP procedures including registration, mobility, and session management.
- Strong C programming skills with experience in Go or Rust.
- Proficiency in Linux system programming and embedded Linux development.
- Experience with ARM-based systems and multithreaded programming.
- Strong understanding of TCP/IP, UDP, SCTP, and HTTP/2 networking fundamentals.
- Expertise in packet processing and performance tuning, with familiarity with DPDK.
- Preferred experience implementing 5G Core network functions in production.
- Strong debugging skills using Wireshark, GDB, and tcpdump.
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.