Engineer Unit Test (Contract)

GreenWave Radios; United States; Remote; USD 83,000 - 124,000; Full time

Job summary

InnoPhase Inc., DBA GreenWave Radios, is seeking an experienced embedded software engineer to design and implement bare metal and RTOS firmware for a 5G SoC. You will work on device drivers and lower PHY, in collaboration with hardware, software, and applications teams.

This 6-month contract is onsite in San Diego, requires 6+ years of experience, BE/CS, ARM Cortex, and strong debugging. You will participate in architecture reviews, code reviews, and document design specs and user guides, with

Qualifications

• 6+ years' embedded SoC development experience.
• BE/CS required; MS preferred.
• Experience with ARM-based embedded environments.
• Hands-on RTOS concepts and any RTOS experience.
• Familiar with CM, version control and Agile flows.
• Excellent debugging and documentation skills.
• Strong initiative to resolve technical issues.

Responsibilities

• Design and develop bare metal & RTOS firmware for a 5G SoC, including device drivers and lower PHY.
• Define, develop and verify SW/FW per company standards.
• Run and test software in simulation and on target hardware in lab (lab may be remote).
• Collaborate with Applications, Systems, HW and SW/FW teams to determine requirements.
• Participate in architecture and code reviews.
• Produce design specs and user guides for developers and customers.
• Read and understand detailed technical specifications.
• Contribute as individual contributor with some technical leadership.

Skills

C/C++

RTOS concepts

ARM Cortex

Debugging

Git/Jira

Unit testing

Device drivers

DMA/Interrupts

Python test automation

AI-assisted development

Education

BE/BTech in EE or CS

MS/ME in EE/CS preferred

Tools

GIT

Jira

Job description

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.

To learn more about GreenWave Radios™ and hear what our employees have to say, visit the GreenWave™ certification profile at GreatPlacetoWork.com or explore our Home - GreenWave Radios website.

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.

InnoPhase Inc., DBA GreenWave™ Radios and Synergic Emergence have a co-employment relationship. For over three years, GreenWave Radios has partnered with Synergic Emergence, a professional employment organization provider, to offer our employees the best benefits and services. This arrangement means that Synergic Emergence provides employee pay checks , and GreenWave Radios will provide employment, evaluation, and advancement. By outsourcing some HR functions, GreenWave Radios can focus on what we do best - developing and implementing highly innovative SOC cellular radio integrated circuit products.

Key Responsibilities

• This is a 6-month contract position.
• Design and develop bare metal & RTOS-based firmware/software for a 5G SoC - specifically device driver and lower PHY.
• Assist with the definition, development and verification of SW/FW products in accordance with company & industry standards, policies & procedures.
• Run & test developed SW/FW both in simulation & on actual HW in lab (lab may be remote).
• Collaborate closely with Applications, Systems, HW and SW/FW teams to determine SW/FW requirements.
• Participate in architecture & code reviews.
• Produce documentation e.g., design specs, developer & customer user guides, etc.
• Read and understand detailed technical specifications.
• Individual contribution is the main role, with some technical leadership and mentorship.

Job Requirements

• 6+ years' experience required.
• B.E EE/CS required, M.Tech EE/CS preferred.
• Experience with ARM or similar embedded SoC development environments.
• Experienced in RTOS principles and concepts, and hands-on experience in any RTOS.
• Comfortable with configuration management, version control and modern software development flows (e.g., Agile, Scrum, Lean).
• Excellent debug skills.
• Good communication, documentation & presentation skills.
• Demonstrate initiative to drive technical issues to resolution.

Desirable Skills

• Prior System on a Chip (SoC) product development experience.
• Good understanding of cellular wireless protocols (MAC/PHY), especially 4G LTE or 5G NR.
• Be able to work productively and independently.
• Experience using GIT and Jira tools.
• Team player with a strong sense of urgency to meet product needs on time.

Technical Skills

• Strong proficiency in C / C++ for embedded systems.
• Hands-on experience with Unity, GoogleTest (gtest), or similar frameworks.
• Solid understanding of embedded systems and low-level driver development.
• Experience with mocking techniques for hardware-dependent code.
• Familiarity with build systems (Make, CMake, etc.).
• Experience with debuggers (GDB, JTAG) and static analysis tools.
• ARM-based systems (Cortex-R/A/M).
• Register-level programming.
• Interrupts, DMA, and concurrency considerations.
• Boot-time and runtime initialization testing.
• Proficiency in using Claude AI (Anthropic) for AI-assisted development, including code generation, code review, debugging, test case creation, and technical documentation.

Good-to-Have (Optional)

• Experience with simulators / emulators (simvision, etc).
• Exposure to SoC-level verification.
• Knowledge of Python for test automation or result analysis.
• Experience in ORAN/wireless domains.
• Familiarity with code coverage tools (coverity).