AI-Driven 4G PHY SW Engineer

Parallel Wireless; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

Parallel Wireless is building Open RAN software for next-generation cellular networks, emphasizing energy-efficient, carrier-grade 4G/5G solutions worldwide.

We seek a driven PHY SW Engineer to join our R&D team to advance performance, reliability and AI-driven development across the baseband software stack.

You will design, implement and optimize digital processing software, collaborate across teams and contribute to architecture decisions for green, scalable telecoms.

Qualifications

• 2 years of hands-on software development experience with a strong focus on C and object-oriented design.
• Excellent C skills and solid Python experience; familiarity with Git and CI/CD.
• Hands-on experience with agentic software development and LLM-based workflows; basic AI concepts.

Responsibilities

• Design and build high-performance digital processing software for the baseband modem.
• Optimize, debug, and root-cause complex real-time issues in carrier-grade systems.
• Integrate, test, and bring up software modules all the way into the product.
• Help shape software architecture for advanced cellular PHY solutions.

Skills

C programming

Python

OO design

Git

CI/CD

Agile

Agentic development

LLM workflows

Education

BSc in Electronics / Communications / Computer Eng / Software Eng / Signal Processing

Tools

Kubernetes

MATLAB

ARM architecture

Job description

Parallel Wireless is reimagining mobile networks with innovative, energy-efficient Open RAN solutions. Join us as we lead the future of telecommunications, driving innovation through green and sustainable networks. Learn more about our mission, vision and values.

Build the software behind next-generation cellular networks. We're looking for a driven PHY SW Engineer to join our R&D team and help develop advanced, carrier-grade 4G cellular communication solutions that push performance, reliability, and AI driven development forward.

What you will do:

• Design and build high-performance digital processing software for the baseband modem.
• Optimize, debug, and root-cause complex real-time issues in carrier-grade systems.
• Integrate, test, and bring up software modules all the way into the product.
• Help shape software architecture for advanced cellular PHY solutions.
• Apply agentic software development and LLM-based workflows

What you should have:

• 2 years of hands-on software development experience with a strong focus on C and object-oriented design.
• Excellent C skills and solid Python experience.
• Hands-on experience with agentic software development and LLM-based workflows, with a basic understanding of AI internals and RAG.
• Confidence working with Git, CI/CD pipelines, and Agile development practices.

Nice to have:

• Arm architecture experience.
• AVX, Neon, or SIMD programming background.
• Kubernetes experience.
• MATLAB experience.
• Knowledge of 4G/5G 3GPP standards or similar technologies.
• Background in digital signal processing or wireless PHY layer technologies.

Education:

BSc in Electronics, Communication Engineering, Computer Engineering, Software Engineering, Signal Processing, or another relevant engineering discipline.

Parallel Wireless is expanding the ecosystem for Open RAN with the GreenRAN™ energy-efficient Hardware-Agnostic technology. Deployed worldwide, our comprehensive 2G/3G/4G/5G Macro RAN solutions enhance network security while reducing operating expenses. As pioneers of Open RAN, we prioritize innovation, flexibility, and sustainability to help build a more connected, and green networks. Headquartered in the USA with global R&D centers, we are proud to serve over 60 customers worldwide and have been recognized with over 100 industry awards. Our mission is to accelerate GSMA's **Mobile Net Zero initiative** by reducing TCO and driving innovation across the telecom ecosystem.Learn more at www.parallelwireless.com.

Parallel Wireless embraces diversity and equality of opportunity. We are committed to building inclusive and diverse teams representing all backgrounds, with a wide range of perspectives, and empowering industry-leading skills. We welcome and consider applications to join our team from all qualified candidates, regardless of their characteristics. We comply with all applicable laws and regulations on non-discrimination in employment (and recruitment), as well as work authorization and employment eligibility verification requirements.