RF Engineer

As a RF Engineer, you will contribute to development projects, leveraging your skills 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: Your main responsibilities can include:

RF Design & Technical Delivery Where You Will Take a Role In The Technical Design And Specification Of RF Circuitry For Radio Terminal Products, Including:

• Subsystem design and implementation
• Integration with Baseband, Audio, and MMI subsystems
• Component specification, evaluation, and sourcing
• Support on 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: In this role, your engineering activities will include:

• Designing and developing RF systems at component level
• Conducting performance tests and optimisations to meet demanding performance criteria
• Performing 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:

Qualifications:

• 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

Experience and Technical Skills:

• Core RF Expertise You will have design‑level experience in at least 3 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
  • 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
  • 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.