WAN / Android Telephony Developer

WAN / Android Telephony Developer Experience

4–8 years

Job Overview

We are looking for an experienced WAN / Android Telephony Developer with strong expertise in Android RIL, Telephony Framework, modem interfaces, and wireless communication technologies. The ideal candidate will have hands-on experience in debugging, integration, testing, and performance optimization of telephony features for smartphone and tablet products.

Key Responsibilities

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  Develop, integrate, debug, and optimize Android RIL and Telephony Framework components.

  
  


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  Work on the interface between the Android platform and modem for smartphone and tablet products.

  
  


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  Troubleshoot and resolve issues related to VoLTE, VoWiFi, Voice, Call, SMS, and Data modules.

  
  


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  Perform Android platform debugging, integration, testing, and performance analysis.

  
  


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  Work closely with modem and chipset teams to identify and resolve device-level issues.

  
  


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  Analyze logs and debug issues using tools such as QXDM, QPST, QCAT, and other Android debugging tools.

  
  


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  Work on carrier-specific requirements and certification-related requirements for carriers such as AT&T, Verizon, and others.

  
  


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  Understand and implement device-level requirements and carrier specifications.

  
  


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  Collaborate with cross-functional teams including modem, BSP, Android framework, QA, and carrier certification teams.

  
  


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  Analyze and resolve complex issues across the Android framework, RIL, Telephony, and modem layers.

  
  

Required Skills

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  4–8 years of experience in Android RIL / Telephony / WAN development.

  
  


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  Strong hands-on experience with Android Telephony Framework and RIL.

  
  


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  Strong programming skills in Java, C, and C++.

  
  


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  Experience with Kotlin development.

  
  


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  Good understanding of Android architecture and internals.

  
  


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  Hands-on experience with Android debugging and log analysis tools.

  
  


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  Experience with QXDM, QPST, QCAT, or similar Qualcomm debugging tools.

  
  


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  Strong understanding of VoLTE, VoWiFi, Voice, Call, SMS, and Data modules.

  
  


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  Experience in debugging, integration, testing, and performance optimization.

  
  


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  Understanding of carrier requirements and device-level requirements.

  
  


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  Experience working with carrier requirements such as AT&T, Verizon, etc.

  
  

Good to Have

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  Experience working with Qualcomm mobile chipsets.

  
  


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  Experience with Qualcomm QCRIL.

  
  


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  Experience working on 5G Qualcomm chipsets/platforms.

  
  


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  Knowledge of modem-RIL interfaces and Qualcomm modem architecture.

  
  


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  Exposure to carrier certification and interoperability testing.

  
  

Essential Technical Skills

Android | Android RIL | Telephony Framework | WAN | Java | C | C++ | Kotlin | VoLTE | VoWiFi | SMS | Data | Android Internals | QXDM | QPST | QCAT | Qualcomm Chipsets | QCRIL | 5G