Senior RF Engineer

19th October, 2026

Sepura develops Mission Critical TETRA/LTE radios (sub 6GHz)/Cellular/BT/WiFi/GNSS/NFC)  We create designs from market requirements to customer delivery in Cambridge UK and manufacture in Europe; delivering the right solutions to our worldwide customers. They include police, fire and ambulance services across the world as well as critical mining and industrial customers.
We are global leaders in the design, development and supply of innovative communications solutions in multiple market segments including emergency services. We are immersed in the transition from TETRA to LTE ESN services and developing challenging/complex radios (vehicle based and handheld devices with a vast array of support accessories) to support our customers.  We are seeking an experienced engineer to play a pivotal role developing innovative products, leveraging their expertise in RF systems/electronics design.

The ideal candidate will have a proven track record in RF product design, enjoy problem-solving, and be an excellent communicator.  Come and join Sepura Ltd at an exciting time of growth and progress your career within this product focused company, based in Waterbeach, Cambridge defining the next generation of communication devices. Role:
The role is a product development/maintenance role and will include:
Technical requirements analysis, design (down to discrete level) and specification of RF circuitry including component specification, evaluation, and sourcing Complete subsystem design, implementation and validation through to Approved product Schematic creation and PCB layout supervision  Integration with Digital, Audio, and MMI subsystems Test definition design and documentation Root cause analysis of failures with updates to design to resolve faults Type approval support to ensure compliant products Collaboration/Interaction with all relevant departments to deliver high quality engineering solutions Support where required for defining/creating new products  This role may require some travel, so the successful candidate will need a full, clean driving license, own car, and valid passport.

Travel expenses will be covered. What you need to succeed:

Behaviour  As a Senior RF Engineer you will be expected to be able to resolve some of the more complex queries, proactively collaborating with other departments, presenting and developing solutions to engineering challenges.  Qualifications Bachelor's degree or higher in Electronics Engineering, Telecommunications, or a related field. Experience and Skills Discrete RF design experience Strong proven hands-on design experience

Radio product development/integration up to 6GHz, ideally within the telecommunications or critical communications industry

Good problem-solving and analytical abilities

Knowledge of RF systems and technologies, including design, simulation, and testing including conformance

Excellent time management and communication skills, with a history of delivering projects/tasks on time and with high quality.
Core RF Expertise - you will have significant design‑level experience in at least 2 of the following areas:  RF Tx/Rx architectures RF transmitters and receivers RF Power Amplifiers Frequency Generation (VCO) Matching networks EMC/EMI Broadband communication systems Tools & Engineering Methods RF simulation tools and modelling such as ADS, CST, or equivalents RF (circuit and system) testing procedures, protocols, and use of facilities (e.g., anechoic chambers, screened rooms) Use of test equipment such as Spectrum & Network Analysers, Communications testers etc.
Technology Experience - You should have strong, hands-on experience in at least one of the following technologies: TETRA/PMR – 100-900 MHz LTE/4G/5G – Sub 6GHz GSM –…