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.

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 1 (L1) and Scheduler , to contribute to advanced 5G and pre‑6G wireless technology development.

In this role, you will work close to standards and real implementations, translating evolving 3GPP specifications into robust, high‑performance software capabilities. You will contribute directly to early 6G pre‑standard implementations, shaping how next‑generation wireless systems are designed, validated, and deployed.





This role operates in a multi‑site international engineering environment , at the intersection of standards, algorithms, and real‑world systems.

Responsibilities

Design and implement optimized software aligned with 5G L1 algorithms and protocols

Develop and enhance 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 deliver fixes with strong root‑cause discipline

Qualifications

Expertise in 3GPP LTE / NR

Focus on L1 protocols and Scheduler alogorithms

C / C++

Real‑time programming

Software development and debugging

Technical communication in English

NVIDIA CUDA GPU programming (preferred)

Experience with CI/CD, test frameworks, containers, and/or cloud‑based environments (preferred)

Experience working in a multi‑site environment (preferred)

Keysight is an Equal Opportunity Employer.

📌 Wireless Protocol Software Engineer – Layer 1 and Scheduler (Madrid)
🏢 Keysight Technologies
📍 Madrid