Wireless Protocol Software Engineer – System API configuration

Keysight Technologies SAles Spain SL.; Fleet; On-site; GBP 55,000 - 75,000; Full time

Job summary

A leading technology company is seeking a Wireless Protocol Software Engineer to develop software capabilities and APIs for system configuration. This role requires strong 3GPP protocol expertise and involves validating protocol configurations for UE and base station emulation. You will collaborate with cross-functional teams to deliver reliable solutions, contributing to pre-6G standards in a multi-site environment. Ideal candidates should be proficient in C# / C++ and have experience with RESTful APIs, along with excellent technical communication skills.

Qualifications

• Strong expertise in 3GPP LTE / NR.
• Focus on API management and 3GPP protocols.
• Experience in multi-site engineering environment.

Responsibilities

• Design, develop, and optimize APIs for system configurability.
• Validate 3GPP protocol configurations.
• Support UE and base station emulation environments.

Skills

3GPP LTE / NR expertise

API management

C# / C++ proficiency

RESTful API development

Strong debugging skills

CI/CD pipelines experience

English communication

Tools

Git

Swagger

Valgrind/Polaris

JIRA

Job description

Overview

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.

Responsibilities

• 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 interfaces
  • Test workflows
  • Reusable and maintainable components
• Collaborate with cross‑functional experts (systems, RF, protocol, UI, customers/partners) to:
  • Reproduce field issues
  • Debug complex behaviors
  • Deliver fixes with strong root‑cause discipline

Qualifications

• 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).

Careers Privacy Statement Keysight is an Equal Opportunity Employer.