Senior Software Engineer for Stack for 5G/NR

AnaVation LLC; Bristol; On-site; GBP 60,000 - 85,000; Full time

Job summary

A telecommunications innovator in Bristol is looking for a software engineer to design and develop features within the 5G protocol stack. Candidates should have 3+ years of experience in the relevant field, strong expertise in C/C++, and be adept in debugging tools. This role emphasizes collaboration and problem-solving in a fast-paced environment. A commitment to innovation and sustainability is key in this position.

Qualifications

• 3+ years of experience in 5G/NR and LTE protocol stack development.
• Expertise in C, C++ programming, and software architecture design.
• Hands-on experience with debugging tools such as GDB, QXDM, TM500, and QCAT.

Responsibilities

• Design and develop new gNB features within the 5G/NR and LTE protocol stack.
• Author system specifications, design documents, and unit test plans.
• Perform end-to-end debugging, troubleshooting, and issue resolution.

Skills

5G/NR and LTE protocol stack development

C/C++ programming

Software architecture design

Linux OS internals

Debugging tools (GDB, QXDM, etc.)

Strong knowledge of 3GPP standards

Communication skills

Tools

Git

Debugging tools

Job description

Overview

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.

Responsibilities

• Design and develop new gNB features within the 5G/NR and LTE protocol stack (MAC, RLC, PDCP, RRC layers).
• Author system specifications, design documents, and unit test plans.
• Take ownership of assigned features and deliver them in collaboration with cross-functional teams.
• Perform end-to-end debugging, troubleshooting, and issue resolution for QA and field-reported problems.
• Work on telecom interfaces including FAPI, F1 (DU–CU), S1 (BBU–EPC), and CU E1.
• Ensure solutions align with best-practice software engineering processes, including version control, CI/CD, and release cycles.

Required Skills & Experience

• 3+ years of experience in 5G/NR and LTE protocol stack development.
• Strong knowledge of 3GPP standards and O-RAN specifications.
• Expertise in C, C++ programming, and software architecture design.
• Deep understanding of Linux OS internals, Ethernet, TCP/IP, UDP, and multi-threading.
• Hands-on experience with debugging tools such as GDB, QXDM, TM500, and QCAT.
• Proven log analysis and troubleshooting skills in complex telecom environments.
• Excellent communication skills, both verbal and written.

Desirable skills and experience

• Experience with Git and modern software development tools.
• Familiarity with interoperability testing, O-RAN integration, and system performance tuning.

About Parallel Wireless

Parallel Wireless is expanding the ecosystem for Open RAN with 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. We invite you to learn more at www.parallelwireless.com.

Equal Opportunity

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 from all qualified candidates, regardless of 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. Parallel Wireless does not accept unsolicited resumes or applications from agencies or individuals. Please do not forward resumes to our jobs alias, Parallel Wireless employees, or any other company location. Parallel Wireless is not responsible for any fees related to unsolicited resumes/applications.