Employment Type: Full-time

In this role, you will join the Accelerators Systems Department (SY) and work within the Radio Frequency (RF) Group, which is responsible for the operation, maintenance, and development of RF power amplifiers and accelerating cavities. As part of an ongoing consolidation of the RF systems of the CERN Proton Synchrotron (PS), the existing vacuum tube-based driver amplifiers are planned to be replaced by new solid-state RF amplifiers. You will contribute to the development of FPGA firmware for amplifier interlock systems and for rapid fault-detection and protection systems used across the RF systems of the PS Complex. The role also includes supporting the integration and testing of new systems and developing Python tools for automated measurements and hardware validation. The work will involve both laboratory testing and commissioning activities on RF equipment.

Your responsibilities

• Develop FPGA firmware for an interlock and protection system as part of a new solid-state RF amplifier design.
• Support the integration, commissioning, and validation of the new interlock system within the PS RF infrastructure.
• Develop Python-based tools for automated hardware testing, measurements, and data analysis.
• Develop FPGA firmware for rapid fault-detection and protection systems for RF systems across the PS Complex.

Your profile
Required experience:

• Initial experience in FPGA design and firmware development, preferably using VHDL.
• Familiarity with FPGA development environments and verification/debugging tools.
• Basic programming experience in Python or a similar language for test automation and data analysis.

Desired experience:

• Experience with PCB design and electronic circuit development.

Skills

• FPGA programming.
• Knowledge of VHDL.
• Knowledge of C/C++.
• Knowledge of Python.
• Spoken and written English, with a commitment to learn French.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• By the application deadline, you have a maximum of two years of professional experience since graduation in Computer Science, Electrical Engineering (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree.
• You have never had a CERN fellow or graduate contract before.
• Applicants without University degree are not eligible.
• Applicants with a PhD are not eligible.

Additional Information
Job closing date: 01.07.2026 at 23:59 CEST.
Contract duration: 24 months, with a possible extension up to 36 months maximum.

Working hours: 40 hours per week

Job flexibility: Fully Onsite

Target start date: 01-August-2026

This position involves:

• Work in Radiation Areas.
• Interventions in underground installations.
• Stand-by duty, when required by the needs of the Organization.

Job reference: SY-RF-LIS-2026-164-GRAE

Field of work: Electrical or Electronics Engineering

Benchmark job: 200050 - Electronics Engineer

Global Benefits

• A monthly stipend between 5266-5793 Swiss Francs per month (tax free) depending on your degree.
• 30 days of paid leave per year plus 2 weeks annual closure.
• Coverage by CERN’s comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
• Family, child and infant monthly allowances depending on your individual circumstances.
• A relocation package (installation grant and travel expenses) depending on your individual circumstances.
• Possibility to extend your contract up to 36 months.
• On-the-job and formal training including language classes.

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