Mixed-Signal IC Design Engineer; EP-ESE-ME--GRAP

Mixed-Signal IC Design Engineer (EP-ESE-ME--GRAP)

Join the CERN Experimental Physics Department and help develop next‑generation detector technologies for future High Energy Physics experiments. As part of the High Speed Links programme, you will contribute to radiation‑tolerant optical communication systems that combine custom ASICs, silicon photonics, optical modules, and FPGA platforms to enable reliable high‑speed data transmission in extreme environments. We are seeking an Analogue/Custom IC Design Engineer to design and validate advanced communication ASICs and high‑speed CMOS circuits for particle physics detectors.

The role involves taking cutting‑edge technologies from prototype development through to full system demonstrators.

Your responsibilities

• Study and define architectures for analogue and mixed‑signal circuits that enable high‑speed communication systems using silicon photonics.
• Design and verify CMOS circuit blocks such as clock and data recovery (CDR) circuits, high speed clock distribution networks and high‑speed analogue‑to‑digital converters (ADCs).
• Perform laboratory testing, characterisation, and validation of circuits.
• Carry out radiation qualification (single‑event effects and total ionising dose) of manufactured devices.

Your profile

• A strong background in digital and analogue electronics, ideally in an IC design environment.
• Familiarity with clock generation and distribution, including fundamentals of DLL, PLL, and CDR circuits.
• The ability to solve engineering problems using a variety of analysis and simulation methods.
• Hands‑on experience in the design, testing and debugging of electronic circuits.
• A strong team player who can also work independently.
• You have never had a CERN fellow or graduate contract before.

Skills

• Design, simulation and layout of CMOS integrated circuits using Cadence Virtuoso.
• Working knowledge of physical verification flows (DRC, LVS, PEX) using Siemens Calibre or Cadence PVS.
• Knowledge of at least one of the following: optical receiver circuits, high data rate drivers (wireline, laser and/or external modulators), PLL and CDR design, TIA, ADC and DAC design, control systems.
• Working knowledge of at least one programming, scripting, or data analysis language (e.g., Python, Bash, MATLAB).
• Experience with electromagnetics (EM) simulation tools (e.g., Ansys HFSS, Simulia CST) is considered a plus.
• Spoken and written English, with a commitment to learn French.
• You have a professional background in Electronics Engineering (or a related field) and have either:
  • a Master's degree with 2 to 6 years of post‑graduation professional experience;
  • or a PhD with no more than 3 years of post‑graduation professional experience.

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Working hours:

40 hours per week

Job flexibility:
Hybrid

This position involves:

• Work during nights, Sundays and official holidays.
• Work in Radiation Areas.

Benefits:

• A monthly stipend between  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.