Our client is a specialist RF and microwave engineering business developing high-performance technology for telecoms, defence, space and advanced communications markets. Their work spans complex RF/mmWave hardware, from niche specialist programmes through to higher-volume product platforms, with design, test and manufacturing kept closely connected in-house.
They are looking for a Principal RF Engineer to take a leading technical role across the full product lifecycle, from early concept and architecture through to design, verification and production release. This is a hands-on senior engineering role with real influence over RF design decisions, product performance and how designs are taken into manufacture.
As Principal RF Engineer, you will be involved in:
Leading the design of RF/mmWave circuits, modules and subsystems
Taking technical ownership of specification, simulation, realisation and verification
Carrying out system line-up analysis, tolerance/yield analysis and design-for-manufacture work
Supporting component, IC and MMIC selection
Working closely with mechanical,



electronics, PCB layout, manufacturing and test teams
Leading design reviews, identifying technical risks and driving solutions
Supporting product introduction, fault-finding and production readiness
Providing technical guidance to other engineers
Our client is looking for a Principal RF Engineer with strong RF/microwave design experience and a practical understanding of taking high-performance RF products into production. Experience with tools such as Microwave Office, ADS, CST or EMPro would be valuable, alongside exposure to amplifiers, filters, transceivers, RF modules or wider RF subsystem design.
This is a strong opportunity for someone who wants senior technical ownership without being removed from the engineering. You’ll be working on real RF/mmWave hardware, close to manufacturing and test, in an environment where your design decisions directly shape the final product.
Benefits include

📌 Principal RF Engineer (España)
🏢 Intellectual Capital Resources
📍 España