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 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.***