Design and develop cellular protocol stack software.
Bring up iOS productions with cellular features.
Diagnose, debug, and resolve cellular issues with rigorous root-cause methodology.
Analyze and optimize cellular performance through systematic analysis and data-driven refinement.
Support comprehensive production testing across all functional, performance and regulatory requirements.

Minimum Qualifications
2+ years of hands-on experience in a cellular protocol stack (NAS/RRC/PDCP/RLC/MAC) developing role.
Good knowledge of wireless communication and computer networks.
Strong troubleshooting and problem-solving skills.
Quick learning capability in a fast-paced environment.
Fluent in both English and Chinese.

Preferred Qualifications
Experienced in cellular system design as plus.
Experienced in LTE/NR firmware development as plus.
Deep knowledge of LTE or NR cross layers as well as end to end system as plus.
Experienced data analytic and data-informed solution design as plus.
Hands on experience in GenAI and machine learning as plus.