1.     Job Description: Android Telephony Engineer (Connectivity: Cellular & eSIM)

TCB: APPLICATION FRAMEWORK AND MIDDLEWARE – ANDROID (TELEPHONY)

Role Overview

We are seeking a highly skilled Android Telephony Engineer with 3–5 years of hands-on experience in Android telephony frameworks, modem platforms, and cellular regulatory compliance. The ideal candidate will have strong expertise in AOSP telephony/RIL customizations, modem configuration, and certification processes, with a solid foundation in Java/C programming.

Key Responsibilities

• Telephony Framework & RIL Development
  • Customize and enhance Android telephony framework and Radio Interface Layer (RIL).
  • Debug and resolve telephony/RIL issues across diverse device platforms.
  • Collaborate with cross-functional teams to integrate telephony features into AOSP builds.
• Modem Platform Expertise
  • Work extensively with Qualcomm or MediaTek modem platforms.
  • Configure frequency bands and parameters to meet regulatory, protocol conformance, and country-specific requirements.
  • Optimize modem performance for diverse deployment scenarios.
• eSIM & LPA Integration
  • Implement and manage eSIM profiles using Local Profile Assistant (LPA).
  • Support eSIM provisioning, activation, and troubleshooting.
• Regulatory & Certification Support
  • Drive compliance for cellular regulatory approvals (FCC, IC).
  • Support PTCRB and country-specific certifications.
  • Prepare technical documentation and assist in certification testing.
• Advanced Telephony Features
  • Contribute to IMS stack development and optimizations.
  • Support VoLTE, ViLTE, and Video Telephony (VT) features.
  • Ensure compatibility with 4G/5G specifications and evolving standards.

Required Skills

• Strong hands-on experience with Android telephony framework and RIL.
• Proven track record of AOSP telephony/RIL customizations, debugging, and issue resolution.
• Deep expertise in Qualcomm or MTK modem platforms.
• Experience with eSIM (LPA) profiles.
• Knowledge of cellular regulatory approvals (FCC/IC, PTCRB).
• Solid understanding of 4G/5G specifications.
• Familiarity with IMS, VoLTE, ViLTE, VT.
• Proficiency in Java and C programming.

Preferred Attributes

• Strong problem-solving and debugging skills.
• Ability to work independently and in cross-functional teams.
• Excellent communication and documentation skills.

• Experience in certification processes and lab testing environments.

   

  Location-Bangalore