Develop, optimize, and test UE Layer 2/Layer 3 protocol stack (MAC, RLC, PDCP, RRC, NAS) for LTE and 5G NR. Implement 3GPP features, debug protocol issues, integrate with PHY/L1 and higher layers, and perform functional/performance testing using UE simulators and network emulators.
We are looking for a talented and experienced User Equipment (UE) L2/L3 Developer to join our dynamic team at US20 - Nokia of America Corp. In this role, you will play a crucial part in developing and enhancing UE protocol stack software, ensuring compliance with 3GPP standards. Your expertise will contribute to the seamless integration of L2/L3 protocols with other layers, optimizing performance and power efficiency.
Responsibilities
- Design, develop, and optimize UE L2/L3 protocol stack software, including MAC, RLC, PDCP, RRC, and NAS.
- Implement 3GPP-specified features and enhancements for LTE and 5G NR.
- Analyze and debug L2/L3 layer issues using protocol analyzers and logs.
- Optimize protocol performance and throughput under various network conditions.
- Collaborate closely with PHY, L1, and higher-layer teams for seamless integration.
- Conduct functional and performance testing of L2/L3 protocols using UE simulators and network emulators.
- Stay updated with the latest 3GPP releases and integrate relevant changes.
- Ensure compliance with industry and operator requirements through cross-functional collaboration.
- Provide technical expertise and support to other team members as needed.
- Bachelor's or Master's degree in Computer Science, Electrical Engineering, Telecommunications, or a related field.
- 3 years of experience in developing and optimizing Layer 2 and Layer 3 protocols for 4G/5G UE.
- Strong programming skills in C/C++ for real-time and embedded systems.
- In-depth knowledge of 3GPP 4G/5G UE protocols, specifically L2 (MAC/RLC/PDCP) and L3 (RRC/NAS).
- Experience with debugging tools like Wireshark, QXDM, and UE log analyzers.
- Familiarity with RTOS/Linux-based development and multi-threaded programming.
- Preferred: Knowledge of 5G SA/NSA network architectures and PHY-MAC interactions.
- Excellent problem-solving and analytical skills.
- Effective communication and teamwork abilities.
- Ability to work independently and manage tasks efficiently.
Similar Jobs at Nokia - Oracle TEST
Information Technology
Lead ownership of observability practices and instrumentation standards across distributed AI infrastructure. Manage the observability stack, ensure proper service instrumentation, build data pipelines (OLAP, Kafka, ETL, streaming), collaborate with SRE, platform, and UI/UX to create dashboards, explore graph/semantic enhancements, mentor teams, and drive adoption of industry tools like Prometheus, OpenTelemetry, Grafana, Tempo, and Victoria Metrics.
Top Skills:
Cloud TechnologiesEtl PipelinesFlinkGrafanaGraph DatabasesKafkaKnowledgebaseKubernetesOlap DatabasesOpentelemetryPrometheusSemantic LayersSparkTempoVictoria Metrics
Yesterday
Information Technology
Design and verify high-reliability hardware and embedded software for aerospace/mission-critical systems. Select radiation-tolerant components, perform derating and radiation effects analyses, support PCB reviews, develop fault-tolerant architectures, and lead environmental qualification, thermal management, shock/vibration testing, and failure investigations.
Top Skills:
Component DeratingEmbedded SoftwareEmc/Emi EngineeringEnvironmental Qualification TestingFailure AnalysisFault-Tolerant ArchitecturePcb DesignRadiation Hardness AssuranceShock And Vibration TestingThermal Management
Information Technology
Lead design and operation of a massively distributed edge compute platform using hyperscaler services and Kubernetes. Build external APIs, optimize high-throughput L7 traffic routing, ensure fault tolerance and security, present scalability metrics, mentor engineers, run design reviews, and collaborate across AI/ML, hardware, network, and security teams.
Top Skills:
APIsAWSAzureContainerizationDistributed SystemsDockerGCPKubernetesL7 Traffic RoutingNetwork Protocols
What you need to know about the Charlotte Tech Scene
Ranked among the hottest tech cities in 2024 by CompTIA, Charlotte is quickly cementing its place as a major U.S. tech hub. Home to more than 90,000 tech workers, the city’s ecosystem is primed for continued growth, fueled by billions in annual funding from heavyweights like Microsoft and RevTech Labs, which has created thousands of fintech jobs and made the city a go-to for tech pros looking for their next big opportunity.
Key Facts About Charlotte Tech
- Number of Tech Workers: 90,859; 6.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Lowe’s, Bank of America, TIAA, Microsoft, Honeywell
- Key Industries: Fintech, artificial intelligence, cybersecurity, cloud computing, e-commerce
- Funding Landscape: $3.1 billion in venture capital funding in 2024 (CED)
- Notable Investors: Microsoft, Google, Falfurrias Management Partners, RevTech Labs Foundation
- Research Centers and Universities: University of North Carolina at Charlotte, Northeastern University, North Carolina Research Campus
