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Senior Software Engineer for Stack for 5G/NR chez Parallelwireless

Parallelwireless · Bristol, Royaume-Uni · Hybrid

C++

AWS

Microsoft Excel

Software Engineer

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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.  

We are looking for an experienced Senior Software Engineer to join our team and drive the design, development, and optimization of the 5G/NR protocol stack. In this role, you will work on gNB features across LTE and 5G, ensuring compliance with 3GPP standards and O-RAN specifications, while collaborating with cross-functional teams to deliver high-performance telecom solutions.


Key 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.


    • 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.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.
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