Firmware Engineer Iii, Wireless Data and Voice Path

Google Google · Big Tech · Mountain View, CA +1

Firmware Engineer III for Google's Modem Protocol L2/Data team, focusing on optimization of LTE and 5G related audio paths (JBM, RTP, PDCP/RLC, MAC). The role involves owning critical VoLTE/VoNR features for power consumption and low-latency data, driving wireless scheduling and voice/data prioritization for Pixel releases and global carrier requirements. Requires 5 years of experience in modem protocol development (LTE/5G data/audio path), C/C++ coding, and embedded systems.

What you'd actually do

  1. Enhance modem data path and voice traffic path features to improve user experience.
  2. Optimize LTE and 5G related audio paths including JBM, RTP, PDCP/RLC and MAC in the wireless modem.
  3. Analyze, debug and fix modem protocol issues from the testing team, certification lab, and customers.
  4. Work and design with the global carriers engineering team to meet customer’s performance and features requirements.
  5. Collaborate with cross-layer teams, including layer 1 and Android audio related teams.

Skills

Required

  • Bachelor's degree in Computer Science, Electrical Engineering, Computer Engineering, a related technical field, or equivalent practical experience.
  • 5 years of experience in modem protocol development, with a specific focus on 3GPP LTE and 5G data or audio path development.
  • 5 years of experience in coding with a general purpose programming language (e.g. C/C++), wireless communications, mobile, and embedded systems.

Nice to have

  • Master’s degree or PhD in Engineering, Computer Science, a related technical field, or equivalent practical experience.
  • Experience with the 3GPP L2 protocol stack, including MAC, RLC, and PDCP layers.
  • Experience in LTE and 5G MAC layer scheduling, including data prioritization, HARQ, and C-DRX alignment.
  • Knowledge of wireless audio path components, including Jitter Buffer Management (JBM) and RTP protocol optimizations.
  • Excellent problem-solving and troubleshooting skills.

What the JD emphasized

  • optimization of long-term evolution (LTE) and 5G related audio path
  • low-latency data transmission
  • wireless scheduling and voicedata prioritization