Quell
Radio Frequency Engineer
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About the Company
Quell is a high-growth British defence and security AI technology start-up developing solutions to counter drone, vehicle, and human threats across the military, civilian and critical national infrastructure sectors.
About the Role
Based near Cambridge, we are seeking an exceptional RF Engineer to design, implement, and optimise RF systems for high-frequency communication and sensing applications. This role can suit entry-level, mid-level, or senior candidates, depending on experience, and offers the opportunity to work on cutting-edge RF technologies within a multidisciplinary engineering team.
Key Responsibilities
- Designing and optimising RF systems and components (e.g., antennas, filters, amplifiers)
- Working on phased-array antenna design and beamforming technologies
- Testing and validating RF hardware for performance, reliability, and regulatory compliance
- Performing RF simulations using industry tools and modelling environments
- Collaborating with cross-functional teams to integrate RF components into larger systems
- Documenting test results, maintaining records, and ensuring compliance with relevant standards
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Requirements
Education
- Bachelor’s or Master’s degree in Electrical Engineering or a related discipline
Experience & Technical Skills
- 3–5 years of RF design/testing experience (5+ years for senior roles; entry-level considered with strong fundamentals)
- Hands-on experience with RF lab equipment (spectrum/network analysers, signal generators)
- Strong understanding of phased-array antennas and beamforming
- Experience with SDRs and tools such as GNU Radio
- Solid knowledge of RF and microwave theory
- Experience with RF front-end components (LNAs, PAs, filters)
- Familiarity with RF communication and modulation standards
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Preferred
- Linux experience for system setup and testing workflows
- Strong programming skills
- History of patent contributions
- Security clearance (or ability to obtain one)
- Experience with manufacturing processes and quality assurance
Details
- Location: North Uttlesford / Greater Cambridge area, on-site
- Work Schedule: Five days a week on-site (i.e., this is not a hybrid role)
- Eligibility: Applicants must be fully eligible to work in the UK without restriction, time limit, or the need for current or future sponsorship.
To Apply
Please apply via LinkedIn with your CV and a short covering note, including your salary expectations and availability.
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