Senior Layer 1 PHY Firmware Engineer 5G NR GNodeB

Company

Qualcomm India Private Limited

Job Area

Engineering Group, Engineering Group > Systems Engineering

General Summary

We are hiring a Layer‑1 (Physical Layer) Firmware Engineers to work on 5G NR gNodeB Firmware. This role focuses on PHY development on the DU side, building high‑performance, real‑time wireless software used in modern cellular networks.

You will work closely with PHY, RF, platform, and system teams to develop and optimize carrier‑grade NR PHY features.

What You’ll Do

• Develop and maintain Layer‑1 (PHY) firmware for 5G NR gNodeB
• Work on uplink and downlink PHY channels, including:
• PUSCH, PDSCH, PUCCH, PDCCH, PRACH, SRS, SSB
  
• Implement and optimize signal processing algorithms such as:
• Channel estimation and equalization
• HARQ processing
• MIMO and beamforming
  
• Work on FEC processing:
• Turbo coding/decoding (LTE)
• LDPC and Polar coding/decoding (5G NR)
  
• Optimize real‑time performance for latency and throughput
• Integrate PHY software with MAC, RF, and hardware platforms
• Debug complex PHY‑level and real‑time issues
  
  

Required Skills

• Strong experience in Layer‑1 / PHY firmware development
• Hands‑on experience with LTE and/or 5G NR
• Solid understanding of 3GPP PHY specifications
• Strong C/C++ programming skills
• Experience working on real‑time or embedded systems
• Good understanding of:
• OFDM / SC‑FDMA
• Numerologies and frame structures
• HARQ and link adaptation
  
  
  

Minimum Qualifications

• Bachelors degree in Engineering, Information Systems, Computer Science, or related field and 2+ years of Systems Engineering or related work experience.
  
  
  

OR

Masters degree in Engineering, Information Systems, Computer Science, or related field and 1+ year of Systems Engineering or related work experience.

OR

PhD in Engineering, Information Systems, Computer Science, or related field.

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