Staff Firmware Engineer - San Diego California

Company: Tbwa Chiat/Day Inc
Location: San Diego, California
Posted On: 04/30/2025

InnoPhase Inc., DBA GreenWave Radios, is at the forefront of innovation in Open RAN digital radios. Our cutting-edge solutions, powered by the Hermes64 RF SoC, are designed to enhance network energy efficiency while dramatically reducing operational expenses, with purpose-built silicon that is the heart of ORAN-based active antenna arrays.Headquartered in San Diego, California, GreenWave Radios has established itself as a pioneer in delivering power-efficient digital-to-RF solutions. The company is supported by a talented team of over 100 engineers spread across four global R&D facilities. With an extensive portfolio of more than 120 global patents, GreenWave Radios continues to push the boundaries of radio technology and innovation.As a Staff Firmware Engineer, you will play a pivotal role in developing embedded firmware for our next-generation cellular infrastructure solutions. Reporting to our senior staff engineer/manager, you will be at the cutting edge of firmware development for radio solutions in the 5G space, focusing on high-speed communication protocols such as Ethernet, PCIe, and SerDes. This is a fantastic opportunity for a highly skilled firmware engineer with experience in DSP, RF technologies, and embedded systems, who is eager to make a significant impact in the cellular infrastructure and high-performance networking industries.Key Responsibilities

• Design, develop, and validate software and hardware systems that support high-speed packet processing, Ethernet standards, and SerDes interfaces.
• Work with high-speed communication protocols such as PCIe, Ethernet (10G/40G/100G), and other high-bandwidth technologies.
• Develop and optimize hardware architectures for high-performance networking systems, ensuring minimal packet loss and low latency.
• Design and implement advanced SerDes architectures and interfaces for interconnects in high-speed systems.
• Collaborate with cross-functional teams to ensure seamless integration of hardware and software components.
• Troubleshoot, debug, and optimize high-speed signal integrity, signal processing, and packet switching mechanisms.
• Contribute to developing and optimizing TX/RX signal processing features, including DPD, QEC, and Passive Intermodulation Correction (PIMC).
• Stay up-to-date with the latest advancements in high-speed networking, Ethernet standards, and PCIe technology.Job Requirements
  • BS/CS EE or Ph.D. with at least 10 years of firmware development experience in embedded systems, including high-speed networking and communication protocols.
  • Strong experience in C programming, with a focus on embedded systems and real-time processing.
  • Extensive experience with high-speed communication protocols such as PCIe, Ethernet, and SerDes interfaces.
  • Strong troubleshooting, debugging, and optimization skills for high-speed signal integrity, signal processing, and packet switching mechanisms.
  • Ability to work collaboratively with cross-functional teams to ensure seamless integration of hardware and software components.
  • Strong communication skills, with the ability to document and present technical concepts effectively.
  • Demonstrated initiative and ability to drive technical issues to resolution effectively and efficiently.
  • Experience with ARM NEON SIMD optimization and RF-based signal processing techniques is a plus.
  • Experience with ARM or other System on Chip (SoC) products and their integration with high-speed communication protocols like PCIe, Ethernet, or SerDes.
  • Familiarity with telecom algorithms like DPD, TX QEC, VSWR, QEC correction, DC offset, RX AGC, with application to high-speed data environments.
  • Knowledge of and experience with version control tools (git command line, repositories).
  • Experience with RTL and mixed-mode (HW/FW) emulation and simulation, particularly in high-speed packet processing and networking environments.
  • Proven ability to work independently and collaboratively within a team environment to meet critical product development milestones on time.Compensation and Benefits:Our compensation package at InnoPhase, dba GreenWave Radios, includes base pay and pre-IPO stock options. The base pay range for this role is between $140K-$225K. Your base pay will depend on the market, interview results, skills, qualifications, experience, education, and location. Our employee benefits include a comprehensive group health plan, matching 401(k), training reimbursement, and various paid leaves (vacation, sick, holidays, maternity/paternity leave, jury). Visit our website to learn more about our employee benefits.
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