Radio Frequency Engineer

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

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Based near Cambridge, we are seeking an exceptiona l RF Engine er 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 tea

**m.

Key Responsibilit**

• iesDesigning and optimising RF systems and components (e.g., antennas, filters, amplifie
• rs)Working on phased-array antenna design and beamforming technolog
• iesTesting and validating RF hardware for performance, reliability, and regulatory complia
• ncePerforming RF simulations using industry tools and modelling environme
• ntsCollaborating with cross-functional teams to integrate RF components into larger syst
• emsDocumenting test results, maintaining records, and ensuring compliance with relevant standa

**rds

Requirem**

entsEduca

• tionBachelor’s or Master’s degree in Electrical Engineering or a related discip

**line

Experience & Technical S**

• kills3–5 years of RF design/testing experience (5+ years for senior roles; entry-level considered with strong fundamen
• tals)Hands-on experience with RF lab equipment (spectrum/network analysers, signal genera
• tors)Strong understanding of phased-array antennas and beamfo
• rmingExperience with SDRs and tools such as GNU
• RadioSolid knowledge of RF and microwave t
• heoryExperience with RF front-end components (LNAs, PAs, fil
• ters)Familiarity with RF communication and modulation stan

**dards

Pre**

• ferredLinux experience for system setup and testing wor
• kflowsStrong programming
• skillsHistory of patent contrib
• utionsSecurity clearance (or ability to obtai
• n one)Experience with manufacturing processes and quality ass

urance

• DetailsLo cation: North Uttlesford / Greater Cambridge area,
• on-siteFive days a week on-site (ie: this is not a hybri
• d role)Applicants must be fully eligible to work in the UK without restriction, time limit, or the need for current or future spons

orship.

To Apply

Please apply via LinkedIn with your CV and a short covering note, includ ing your salary exp ectat ions and avai

lability.