Job Description

Locations

• Beijing, Beijing, China 100045

Salary

Skills Required

• diagnosticsintermediate
• analyticsintermediate
• lab/field experimentationsintermediate
• code/architecture reviewintermediate
• platform architectureintermediate
• standardizationintermediate
• firmware/protocol developmentintermediate
• system testintermediate
• carrier engineeringintermediate
• baseband optimizationsintermediate
• Protocol softwareintermediate
• PHYintermediate
• RFintermediate
• SIMintermediate
• NASintermediate
• ASintermediate
• IPintermediate
• TCP/UDPintermediate
• iOS interfacesintermediate
• interoperability functionsintermediate
• vendor engagementintermediate
• Roadmap feature alignmentintermediate
• test specificationsintermediate
• 3GPP specificationsintermediate
• radio access technologiesintermediate
• GSMintermediate
• WCDMAintermediate
• LTEintermediate
• 5G (SA and NSA)intermediate
• EPCintermediate
• IMSintermediate
• deep-dives with infrastructure vendorsintermediate
• Software developmentintermediate
• new features and enhancementsintermediate
• Run testsintermediate
• validate software architectureintermediate
• suggest key changes and upgradesintermediate
• Gauge Functional and Performance impactsintermediate
• comparative device testingintermediate
• analysis of appsintermediate
• software buildsintermediate
• infrastructure network deployment configurationsintermediate

Required Qualifications

• Bachelors/Master Degree in Computer Science, Computer Engineering, Electrical Engineering, or equivalent experience. (experience)
• Proficient in Perl/Python scripts to automate test suites for IOT for regression test. (experience)
• In-depth knowledge of the entire protocol stack needed (PHY, MAC, RLC, PDCP, RRC). Utilize knowledge of PHY to realize the full potential of newly introduced RATs to ensure correct interoperability. (experience)

Preferred Qualifications

• You have excellent cross team collaboration skills. (experience)
• Self-motivated and pro-active, with multi-tasking, creative and critical thinking capabilities. (experience)
• Build relationships, drive work, and influence outcomes in those areas. (experience)
• Apple is an Equal Opportunity Employer that is committed to inclusion and diversity. We also take affirmative action to offer employment and advancement opportunities to all applicants, including minorities, women, protected veterans, and individuals with disabilities. Apple will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation or that of other applicants. (experience)

Responsibilities

• 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.

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