Senior RF Engineer

Filtronic Plc; Cambridge; On-site; GBP 45,000 - 70,000; Full time

Job summary

A leading RF technology company in Cambridge is seeking a Senior RF Engineer. This role focuses on the design, development, and delivery of high-performance RF and mmWave products. Successful candidates will have strong expertise in RF/microwave engineering and work closely with multi-disciplinary teams. Responsibilities include leading RF design efforts, supporting project management, and ensuring product specifications are met. Candidates must be eligible for UK Security Clearance. Competitive salary and growth opportunities in a dynamic environment await.

Qualifications

• Proven expertise in RF/microwave engineering and design.
• Experience in RF system analysis and performance optimisation.
• Ability to carry out RF measurements and validation.

Responsibilities

• Lead the design and development of RF/microwave circuits.
• Support the transition of designs to volume manufacturing.
• Collaborate with engineering teams for integrated solutions.

Skills

RF design and simulation

Troubleshooting RF systems

Technical documentation

Collaboration with cross-disciplinary teams

Project management support

Job description

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.

Senior RF Engineer

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

Requirements

Technical

• 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

Project & Product Management

• 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

Collaboration & Communication

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