The iOS (iPhoneOS) wireless technology team is looking for a highly motivated Cellular Protocols Software Engineer to help develop our next generation of iOS products.
This role requires critical expertise in cellular layer 1-3 protocols, experience with UE and/or NW protocols development for various 3GPP/3GPP2 technologies is essential. The candidate must demonstrate solid understanding of relevant protocol procedures and network interactions.
The candidate will work in a small team and constantly engage with radio stack vendors, carriers, infrastructure vendors and other engineering disciplines within Apple HW/SW organizations to deliver high performance best in class modem for iOS products. Ideal candidates require exceptional debugging skills and excellent communication skills in a culturally diverse world-class engineering environment.
Specific Duties
- Implementation, Integration, customization, enhancement and maintenance of L1-3 Protocols for one or more of the following air interface: GSM/UMTS, CDMA (1x/EVDO), LTE etc.
- Carrier specific features implementation
- Troubleshoot cellular stack and network issues, including IOT, type approval and field issues
- Drive KPI (Key Performance Index) enhancements by working with cross-functional teams to achieve best-in-class voice/data performance
- Investigate future cellular technologies
- Develop next generation cellular modem
Specific Skills and Experience
- MS/Ph.D. in EE/CS
- Expert knowledge of one or multiple cellular technologies: GSM/UMTS, HSPA, HSPA+, CDMA/1x, EVDO, LTE etc.
- Minimum 3 years development experience with AS/NAS protocol stacks and middle layer development
- Strong C programming skills
- Experience with RTOS embedded development
- Excellent debugging and troubleshooting skills
- Highly motivated and self-directed, fast learner
- A good team player with strong verbal and written communication skills, fluent English communication is must-have
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