Wireless Protocol Software Engineer – Layer 3 (RRC)

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, focused on Layer 3 (L3), to support advanced 5G and pre‑6G wireless system development.

You will work close to standards and real implementations, translating evolving protocol specifications into scalable and robust software components that directly impact system behavior and performance.

This role provides deep technical ownership of L3 protocol stacks within a multi‑site international environment.

Responsibilities

• Design, develop, integrate, and optimize the L3 protocol stack (RRC)
• Support UE emulation
• Contribute to 5G standards, following 3GPP evolution
• Translate evolving requirements (3GPP releases, operator acceptance needs, O‑RAN priorities) into clear software designs, test workflows, and reusable components
• Collaborate with cross‑functional experts (systems, RF, protocol, product, customers/partners) to reproduce field issues, debug complex behaviors, and validate fixes with strong root‑cause discipline

Qualifications

• Strong expertise in 3GPP LTE / NR
• Focus on L3 protocols (RRC)
• C / C++
• Multi‑threading and real‑time programming
• Software development and debugging
• Experience working in a multi‑site environment
• Technical communication in English

Preferred Qualifications

• Experience with CI/CD, test frameworks, containers, and/or cloud‑based environments

Tools: Git, Valgrind/Polaris, JIRA, Wireshark

Careers Privacy Statement

Keysight is an Equal Opportunity Employer.

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