Description Science and Technology Facilities Council Salary: £35,049 per annum £1,000 welcome bonus Contract Type: Permanent Hours: Full-time Location: Rutherford Appleton Laboratory, Harwell, Oxfordshire OX11 0QX Closing date: 19th October 2025 Assessment Centre: December 2025 / January 2026 Start date: September 2026 ISIS Neutron and Muon Source is a world-leading centre for research at the STFC Rutherford Appleton Laboratory. ISIS uses a particle accelerator to produce neutrons and muons which are used to carry out research in the physical and life sciences. We provide a stimulating, creative and ambitious environment which enables staff to contribute to a world-leading science facility and develop their careers in cutting-edge science, technology, and engineering. This is a fantastic opportunity for a graduate engineer looking to apply and grow their expertise in radiofrequency (RF) electronics and control systems within a high-profile particle accelerator facility. Graduate Scheme The STFC Graduate scheme will give you the opportunity to really pursue your interests and passion early in your journey with us, supported by technical training and a broader programme of career support and training and development. Our dedicated Graduate Development Team will provide the right combination of challenge and support throughout, helping you achieve your ambitions. We know that professional recognition is also important to you too, so we will provide mentoring and expertise to help you achieve valued qualifications or chartered status in your chosen field. Key Duties & Responsibilities As a Graduate RF Engineer working in the ISIS Accelerator Technology Division, you will work alongside experienced electronics engineers, physicists and software developers in the Low Level RF (LLRF) team responsible for designing, operating and maintaining the RF control systems for both the synchrotron and linear accelerator (linac) at ISIS. These systems ensure precise and reliable beam acceleration by managing and regulating high-frequency electric fields inside accelerator cavities. You will work alongside experienced engineers and physicists to: Design, test and commission electronics for feedback and feed forward control systems. Implement signal processing techniques for RF waveform shaping and beam stability using LabVIEW FPGA. Develop diagnostics and monitoring tools to maintain system performance. Work with system upgrades to improve availability, flexibility and efficiency. Participate in fault-finding and reactive maintenance as part of the operations team. Collaborate across multi-disciplinary teams spanning accelerator operations, diagnostics, controls, and high-voltage systems. You will also receive technical and professional development support through STFC’s graduate programme, which includes: Mentoring from senior engineers. Technical training in relevant electronics, RF systems and control theory. Structured support toward achieving chartered status. Person Specification In order to apply for the role we are looking for the following: Essential: Achieved, or be on course to achieve, a minimum 2:1 degree, in a relevant field of study (S) Have the right to live and work in the UK at time of starting employment (S) Strong understanding of analogue and digital circuit design and signal processing (S&I) Effective communication (S&I) Collaboration experience through academic or extracurricular projects (S&I) Excellent problem-solving and analytical skills (S&I) Familiarity with key concepts in electromagnetism, RF or control theory (S&I) Desirable: Experience working on RF, control, or instrumentation projects through placements, internships, or academic work (I) Knowledge of FPGA development, embedded systems or LabVIEW (I) Awareness of accelerator physics (I) Familiarity with electrical safety, radiation safety or high-voltage systems (I) Employee Benefits We are offering a permanent position with a whole host of benefits including: 30 days holiday (in addition to 10.5 bank holidays and privilege days). Flexible working hours. An excellent defined average salary pension scheme. Easily accessible public transport links/ free parking. Excellent learning and development opportunities. Cycle to work scheme. Link to more benefits: https://stfccareers.co.uk/rewards-and-benefits/ As this job does not fulfil the UK Government minimum criterion for obtaining sponsored migrant worker status we will be unable to apply for sponsorship for anyone not eligible to work in the UK. At interview, all shortlisted candidates are required to bring with them identification documents and original documents that prove they hold or can obtain the right to work in the UK. You can check your eligibility here: https://www.gov.uk/check-uk-visa/y Application Guidance Please note that we can only accept a maximum of 2 applications per candidate. Part of our application process involves submitting your CV and a cover letter. Your cover letter should address your suitability for the opportunity based how you meet each essential criteria stated in this advert. Please note that we hold the right to close this vacancy early if a sufficient number of applications have been received. We ask some of the biggest questions in the universe, to answer some of the biggest challenges in the world. Together, our scientists, technologists, engineers and business support team explore the unknown across every field you could think of. And they turn what they find into work that changes the world around us. What could you achieve with the world-leading facilities and experts of one of Europe's largest research organisations by your side? Join us and discover what's possible!