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GreenWave Radios

Staff Firmware Engineer

GreenWave Radios, San Diego, California, United States, 92189


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.

Based in San Diego, California, GreenWave Radios™ has earned a reputation for delivering power-efficient digital-to-RF solutions. Our commitment to innovation is backed by a robust team of more than 100 talented engineers spread across four R&D facilities worldwide and an extensive portfolio of over 120 global patent filings, underscoring our dedication to pushing the boundaries of radio technology.

Are you looking to grow your career at a company that 93% of our current staff approve of our leadership, values, and goals?

To learn more about GreenWave Radios™, visit the GreenWave™ certification profile at GreatPlacetoWork.com and our website at Home - GreenWave Radios.

As a

Staff Firmware Engineer , you'll be part of a team that's revolutionizing the cellular infrastructure industry. Reporting to our principal engineer/manager, you'll be at the forefront of developing embedded firmware for our innovative radio solutions. This role is a unique opportunity for someone who thrives on driving the critical path, making a significant impact in product launches, and winning!

This is a full-time position based in our San Diego, CA office.

Key Responsibilities

Develop and optimize digital signal processing (DSP) algorithms for both transmission (TX) and reception (RX) in 4G/5G physical layers, with a focus on timing synchronization for RF symbols, including Cyclic Prefix (CP), PRACH, and NPRACHDesign, develop, and integrate embedded firmware drivers for radio front-end, transceiver, and baseband modulesImplement an extensible hardware abstraction layer to seamlessly support a variety of radio hardware configurations using a common APIDesign and implement test mode interfaces to enable hardware characterization, calibration, and tuning procedures to optimize system performanceDesign and optimize device control transactions to meet strict timing requirements and to enable efficient transmit operation while maintaining RF spectrum emissions requirementsJob Requirements:

Minimum of eight years experience requiredMS EE/CS preferredIn-depth knowledge of DSP techniques for TX/RX in 4G/5G physical layers, including timing synchronization for RF symbols such as CP, PRACH, and NPRACHExperience with the development of Lower Physical Layer (Layer 1) and/or RF Driver firmware using the C programming language, especially for RF calibration, for at least one wireless technology, preferably 5G NR or LTEExperience with RF test equipment measurements for signal quality analysis in at least one wireless technology standardKnowledge of RF-related alarms and Key Performance IndicatorsUnderstanding of maintenance plane protocols, e.g., ORAN-MP / ORI / other CPRI SW protocolsStrong coding skills in embedded C and PythonDesirable Skills

Prior ARM or similar System on a Chip (SoC) product development experienceGood understanding of cellular wireless protocols (MAC/PHY)Be able to work productively and independentlyExperience using GIT and Jira toolsTeam player with a strong sense of urgency to meet product needs 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.