Principal RF Engineer

Principal RF Engineer

Filtronic · Sedgefield, United Kingdom (Hybrid) · Full-time · Posted 2026-05-11

Workplace: hybrid

Department: Engineering

Description

Relocation Assistance and Skilled Work Visa Sponsorship is available, if required.

Filtronic is looking for a Principal RF Engineer to join our team, based at our new state-of-the-art facility in County Durham UK, to work on a range of exciting products from concept through to production.

With a wide range of design tools, experienced engineers and in-house RF/mmW manufacturing capabilities, you will play a key role in the design and delivery of new products as part of the Filtronic team.

Our products range from low volume niche opportunity devices to high volume telecommunications and defence equipment.

Purpose of Role:

Responsible for leading the design of RF/mmW elements and systems, ensuring that electrical performance, quality, cost and manufacturability requirements are met.

The Principal RF Engineer will provide technical leadership across design activities, support project delivery and help develop best practice within the engineering team.

Summary of responsibilities:

• Lead the design and development of RF/mmW sub-circuits, sub-modules and systems within telecommunications and defence products.
• Take technical responsibility for RF/mmW specification, design, simulation, realisation and verification.
• Provide technical guidance and support to other engineers within the team.
• Carry out system line-up analysis, tolerance analysis and design for manufacture.
• Support the selection of components, ICs and MMICs, including liaison with suppliers where required.
• Work closely with mechanical, electronics, PCB layout, manufacturing and test teams to deliver robust product designs.
• Prepare and review design documentation, including design logbooks, data packs, peer reviews and design release information.
• Lead and participate in design reviews, identifying and managing technical risks.
• Support design verification and validation, including test specifications, test reports and reliability testing.
• Support problem solving and fault diagnosis during product introduction and production.
• Ensure designs are delivered in line with project technical, schedule and cost requirements.

Requirements

• Relevant Degree or equivalent, preferably in RF, Microwave, Electronics or Communications Engineering.

• Significant experience in RF/mmW circuit or system design.

• Experience using RF design tools such as Microwave Office, CST, EMPro or ADS.

• Strong understanding of microwave circuit design, system line-up analysis, tolerance/yield analysis and design for manufacture.
• Experience of transceiver, amplifier, filter, module or subsystem design would be beneficial.
• Ability to lead technical activities and support the development of other engineers.
• Strong problem-solving skills and a practical approach to engineering delivery.
• Good communication skills and the ability to work effectively across engineering, manufacturing and project teams.

Benefits

• Salary benchmarked at the top end of the market range to attract the strongest candidates.
• 37.5 hour working week
• 25 days’ holiday plus public holidays, with the option to buy up to 5 additional days
• Contributory pension scheme with up to 8% company contribution
• Life Assurance
• Income Protection Insurance
• Save As You Earn (SAYE) share scheme
• Electric Vehicle (EV) scheme
• Cycle to Work scheme
• Volunteering day
• Learning and development opportunities
• Hybrid working available

Want to Know More?

This advert provides an overview of the role and its key responsibilities. If you would like details of the salary and benefits package on offer - please note that some benefits become available following successful completion of your probationary period - before investing your time in applying, or would simply like to have an informal conversation about the opportunity, we would be delighted to hear from you. Please contact our Talent Team on 01740 618828.

We are always happy to answer any questions you may have about the role, what we do, our culture or what it is like to work at Filtronic.

Diversity & Inclusion

At Filtronic, we believe diverse perspectives drive innovation. We're committed to creating an inclusive workplace where everyone is treated with respect and has the opportunity to succeed. We welcome applications from all suitably qualified candidates regardless of age, disability, gender reassignment, marriage or civil partnership, pregnancy and maternity, race, religion or belief, sex or sexual orientation. If you require any reasonable adjustments during the recruitment process, please let us know. We'll be happy to support you throughout your application journey.

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