Wireless Protocol Software Engineer - System API configuration

Design, develop, integrate, and optimize APIs for system-level configurability.Validate 3GPP protocol configurations, with specific focus on RRC configuration.Support both UE and base station emulation environments.Contribute to pre-6G standards, following 3GPP evolution and emerging requirements.Convert evolving requirements (3GPP releases, operator acceptance needs, O-RAN priorities) into:Clear software designs and interfacesTest workflowsReusable and maintainable componentsCollaborate with cross-functional experts (systems, RF, protocol, UI, customers/partners) to:Reproduce field issuesDebug complex behaviorsDeliver fixes with strong root-cause discipline

Strong expertise in 3GPP LTE / NR.Focus on API management and 3GPP protocols.Proficiency in C# / C++.Experience with RESTful API design, documentation, development, testing, and debugging.Experience using Swagger.Strong software development and debugging skills.Experience working in a multi-site / distributed engineering environment.Ability to communicate technical concepts clearly in English, both written and verbal.Experience with CI/CD pipelines, automated test frameworks, containers, and/or cloud-based deployment environments.(preferred)Familiarity with tools such as Git, Valgrind/Polaris, and JIRA. (preferred)

We are open to hiring in our Fleet (UK) and Milan (Italy offices) for this role. Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world-class solutions in communications, 5G, automotive, energy, quantum, aerospace, defense, and semiconductor markets for customers in over 100 countries. Learn more about what we do. Our award-winning culture embraces a bold vision of where technology can take us and a passion for tackling challenging problems with industry-first solutions. We believe that when people feel a sense of belonging, they can be more creative, innovative, and thrive at all points in their careers. Keysight is looking for a Wireless Protocol Software Engineer with strong 3GPP protocol expertise to develop robust software capabilities and APIs for system configuration, working close to standards and real implementations. In this role, you will translate evolving 3GPP specifications into system-level configurability, enabling reliable configuration and validation of protocol behavior across UE and base station emulation. You will contribute to early 6G pre-standard implementation activities, partnering across disciplines to deliver high-quality solutions. This position sits at the intersection of protocol standards, software engineering, and system configuration APIs, within a multi-site international environment.