苹果Cellular Protocol Stack Development Engineer

You will be hands-on, relying upon diagnostics, analytics, lab/field experimentations as well as code/architecture review to exploit the opportunities for improvement. You will work with platform architecture, standardization, firmware/protocol development, system test & carrier engineering teams to drive improvement proposals and baseband optimizations. Our members enjoy the flexibility to be involved in all aspects of Protocol software - PHY, RF, SIM, NAS, AS, IP, TCP/UDP and iOS interfaces, to ensure the most robust and customer friendly software. - Responsible for interoperability functions across cellular infrastructure vendors. - Oversee all infrastructure vendors and their technical operations. - Responsible for deep vendor engagement from Roadmap feature alignment required for development tests to planning, execution, reporting and technical alignments with vendors. - Report to higher management of progress made, issues seen, solutions found and next steps. Design test specifications across 3GPP specifications encompassing radio access technologies like GSM, WCDMA, LTE and 5G (SA and NSA) and core technologies related to EPC and IMS. - Perform deep-dives with infrastructure vendors to understand the implementation features with an IOT impact to the device and KPI hits to operators. - Engage with Software developers in the Org to understand new features and enhancements that we bring into our products including features which may already be in the standard specifications (like 3GPP) or introduced on top of existing framework. - Run tests and validate existing software architecture and implementation and suggest key changes and upgrades to enhance it further. - Gauge the Functional and Performance impacts of baseband to various Applications running on our products which is key to great user experience. - Perform comparative device testing and analysis of a suite of apps against different software builds as well as against different infrastructure network deployment configurations.

You will join a dynamic team focusing on improving the cellular stability and performance of the latest iPhone/iPad/Watch. Your job responsibilities will include but not limited to below points: - Leveraging artificial intelligence (AI) technologies to execute 5G/4G cellular test jobs, analyze test results to identify in-depth and potential stability and KPI issues, generate analysis reports, and provide data-driven insights for problem resolution. - Developing natural language-based Chatbot tools tailored to the team's needs, enabling efficient information retrieval, test-related consultation, and automated interaction in the cellular stability testing workflow. - Applying AI methods to optimize the team's test strategies, test cases, and related processes for cellular stability testing, enhancing test coverage, accuracy, and resource utilization.

网络团队作为工业基础设施的一部分，深入工业网、物联网以及传统互联网。作为网络部门的一员，这个职位需要设计、实施和运维无线网以及5G专网。 职责描述 • 5G专网以及WIFI网络架构设计，网络项目实施和运维。编写制作高级设计和详细设计。 • 编写网络设计和运维文档。 • 定义网络指标监控网络状态。 • 作为二线三线技术支持支撑公司网络运维。 • 根据公司业务需求进行值班和轮班。（包含电话轮班和周末现场轮班） • 根据项目需求偶尔出差

The Role: Tesla is seeking a senior Wireless System Test Engineer. This engineer will be responsible for validating cellular connectivity performance and follow up on issues documentation, reproduction, and real-time debugging. This engineer will work closely with service teams and development teams to contribute to improve car connectivity system performance and user experience across different platforms and carrier network continuously. Responsibilities: • Develop system performance validation strategy and test plan for cellular connectivity system performance • Execution of tests to verify that behavior of modem functions conforms to specifications, in live network environment (Static/Drive Test) • Document, root-cause and follow up on cellular connectivity issues found in internal, beta, field and vendor testing • Verification of field related issues and drive closure for the fix • Optimize cellular system performance validation tools (on/off fleet) throughput fleet lifecycle • Work closely with carrier operator and service provider on cellular related project and issue