_{20th January, 2026}

It’s an exciting time to join the Sepura team. We are seeking a Senior RF Engineer to play a pivotal role within our Research and Development team.

As a Senior RF Engineer, you will contribute significantly to development projects, leveraging your expertise in RF electronics design. The ideal candidate will have a proven track record in RF electronics 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 innovative technology company, based in Waterbeach, Cambridge.

Role:

RF Design & Technical Delivery where you will take a leading role in the technical design and specification of RF circuitry for radio terminal products, including:

• End‑to‑end subsystem design and implementation
• Integration with Baseband, Audio, and MMI subsystems
• Component specification, evaluation, and sourcing
• Creation of design test documentation
• Schematic design and supervision of PCB layout

Day to Day:

Our customer base spans a wide variety of industries and global markets. We deliver comprehensive TETRA and LTE solutions designed to support users who rely on dependable, mission critical communications across multiple sectors.
At Sepura, no two days are the same. You will be supported by your manager and team while collaborating closely with colleagues across different departments to deliver high quality engineering solutions.
  
Technical Responsibilities:

• Designing and developing RF systems at component level
• Conducting performance tests and optimisations to meet demanding performance criteria
• Leading integration and prototyping efforts to ensure seamless interaction between subsystems and the wider system architecture
• Working closely with baseband, software, and audio teams to incorporate RF solutions into complete product designs
• Producing high quality technical documentation, including design reports, test plans, and performance assessments

What you need to succeed:  

• Bachelor’s or Master’s degree in Electronics Engineering, Telecommunications, or a related field
• Extensive experience in RF design and development, ideally within the telecommunications or critical‑communications sector
• Strong understanding of RF systems and technologies, including design, simulation, and testing
• Proven hands‑on design experience with practical engineering intuition
• Excellent time‑management and communication skills, with a track record of delivering high‑quality work on schedule

Core RF Expertise (You will have significant design‑level experience in at least three of the following areas):  

• RF Tx/Rx architectures
• RF receivers & transmitters
• RF power amplifiers
• EMC/EMI
• Frequency generators
• Antenna design & tunning
• Matching networks
• Broadband communications
• LTE/4G/5G

 Tools & Engineering Methods:  

• Strong component selection and evaluation skills
• Experience using RF simulation and modelling tools such as ADS, CST, or equivalent
• Familiarity with RF testing procedures, protocols, and facilities (e.g., anechoic chambers, screening rooms)

Technology Experience (You should have strong hands-on experience in at least two of the following technologies):  

• TETRA – 100–900 MHz
• GSM – 800/900/1800 MHz
• LTE/4G/5G – 700–2700 MHz
• GNSS – 1.6–2 GHz
• WiFi – 2.4–6 GHz

Collaboration & Delivery Skills:  

• Excellent communication and interpersonal skills, with the ability to collaborate effectively across teams
• Ability to manage multiple projects simultaneously and coordinate internal and external resources
• Strong practical skills with sensitive PCBs, including component‑level rework and modifications

 Nice to have:  

• Experience with professional mobile radio (PMR) systems.
• Familiarity with regulatory standards and compliance in the telecommunications industry.
• Knowledge of advanced RF technologies, such as beamforming or MIMO.
• Proficiency in additional programming or scripting languages relevant to RF design and testing.

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