Engineer jobs in United Kingdom

Please note: For this role, all candidates must be able to meet the requirements of the UK Security Clearance vetting process.

Who we are:

Filtronic is a leading designer and manufacturer of high-performance radio frequency (RF), microwave, and millimetre-wave (mmWave) subsystems, specialising in mission‑critical communication networks. Since 1977, we have built a strong reputation as trusted partners to global technology leaders across the telecommunications infrastructure, aerospace and defence, space, and critical communications sectors. Our legacy of innovation and engineering excellence has positioned us at the forefront of advanced connectivity solutions worldwide, and we continue to grow as we deliver cutting‑edge technology for some of the most exciting programmes in the industry.

Joining Filtronic means becoming part of a team that combines decades of RF expertise with a collaborative, forward‑thinking approach to solving complex communication challenges.

We are an AIM listed plc, on a rapid growth trajectory, recently named Business of the Year at the North East Business Awards and winner of Best Technology Award at the AIM Awards 2025. With record revenues (£56.3M FY 2025), landmark space and defence contracts, and a clear roadmap for innovation, this is the moment for exceptionally talented people to join us on our exciting journey.

The RF Engineer plays a key role in the design, development, and delivery of high-performance RF and mmWave products and solutions. This role involves advanced technical expertise in RF/microwave engineering, hands‑on design and test, problem‑solving, and close collaboration with cross‑disciplinary teams to ensure successful project execution.

The RF Engineer is responsible for delivering robust RF designs, supporting technology development, maintaining high engineering standards, and contributing to the company’s product roadmap.

• Lead the design, simulation, and development of RF and mmWave circuits, components, and subsystems
• Conduct RF system analysis, performance optimisation, and troubleshooting of complex designs
• Carry out RF measurements, characterisation, and validation of prototypes and production hardware
• Develop and maintain detailed technical documentation, including design reports, test plans, and results
• Ensure designs meet required specifications, standards, and customer requirements
• Contribute to technology and product roadmaps with innovative RF design solutions
• Support RFQs, proposals, and customer engagements with technical input where required

• Work with project managers and engineering leads to deliver designs on time, within budget, and to agreed quality standards
• Support the transition of designs from concept through prototyping into volume manufacturing
• Collaborate with process engineering and operations to ensure manufacturability and yield of RF products
• Assist in risk identification and mitigation during the design and development process

• Work closely with electronics, mechanical, software, and systems engineers to deliver integrated solutions
• Provide technical expertise and support to internal and external stakeholders, including customers
• Present technical work and project updates to peers, management, and customers as required

The above provides an overview of the key responsibilities for this role; however, duties may evolve to meet the needs of the business and customer requirements.

Please call our Talent Partner, Bruce Mair on 07483 917543 (anytime) if you would like to chat about this role or clarify the salary and benefits prior to investing your time applying.

Filtronic plc is an equal opportunities employer and is committed to building a diverse and inclusive workplace where everyone can thrive. We welcome applications from all qualified candidates regardless of age, gender, ethnicity, religion, sexual orientation, or disability status. If you require any adjustments or accommodations to support you during the interview process, please let us know and we will be happy to assist.