Wireless Protocol Software Engineer - Layer 2 (MAC, RLC, PDCP)

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.

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 2 (L2), 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 L2 protocol stacks within a multi site international environment.

• Design, develop, integrate, and optimize the L2 protocol stack (MAC, RLC, PDCP)
• Support UE and base station emulation
• Contribute to pre 6G 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

• Strong expertise in 3GPP LTE/NR
• Focus on L2 protocols (MAC, RLC, PDCP)
• C/C++
• Multi threading and real time programming
• Software development and debugging
• Technical communication in English
• Experience with CI/CD, test frameworks, containers, and/or cloud based environments (preferred)
• Experience working in a multi site environment (preferred)
• Tools: Git, Valgrind/Polaris, JIRA, Wireshark

Careers Privacy Statement

Keysight is an Equal Opportunity Employer.