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# Wireless Protocol Software Engineer - System API configuration

- **Company:** Keysight
- **Location:** Fleet, UK
- **Contract:** Permanent contract
- **Skills:** LTE (Telecommunication), Application Programming Interfaces (APIs), JIRA, Automation of Tests, C Sharp (Programming Language), Software Debugging, Memory Leaks, Software Engineering, O-RAN, Git, Restful APIs, Api Management
- **Published:** May 25, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/x/37337753/

## About the Role

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)

## Description

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


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