Silicon Photonics Characterisation and Design Engineer (EP-ESE-BEGRAP)

Join CERNs detector R&D program for future high-energy physics experiments working on advanced optical communication technologies for next-generation particle this role you will contribute to the development of radiation-tolerant Silicon Photonics components for high-speed data transmission in challenging environments. Your work will include hands-on laboratory characterisation of Silicon Photonics circuits and the design of innovative photonic devices. This position offers the opportunity to work at the intersection of photonics electronics and particle detection technologies.

Your responsibilities

• Contribute to the electro-optical characterisation of custom-designed photonic integrated circuits (PICs).
• Validate the PIC measurement results against optical simulations.
• Support the integration and evaluation of PICs with particle readout chips (ROCs).
• Prototype and demonstrate coarse wavelength-division multiplexing (CWDM) data-transmission systems.
• Characterise and benchmark different data-link architectures.
• Simulate and design a new generation of test PICs based on measurement results from existing PICs.
• Present the progress to project meetings and conferences.
• Document measurement and simulation results and methods.

Your profile

• Proven experience in design and simulation of photonic components and integrated photonic circuits.
• Experience in laboratory characterisation of optical and photonic components using OSAs tunable lasers and power meters.
• Proven experience in high-speed electro-optical measurements utilising pattern generators oscilloscopes error detectors VNAs and spectrum analysers.
• Hands-on experience in automation of measurement setups for opto-electronic devices.
• Extended experience in analysis and interpretation of experimental and measurement data.

Skills

• Expert user of photonic simulation tools (e.g. Ansys Lumerical Synopsys RSoft).
• Proficient user of electronic and optical laboratory instrumentation including high-speed measurement techniques.
• Expert user of C-based programming languages or Python.
• Expert in data analysis and visualisation using Python MATLAB or equivalent.
• Familiar with Linux-based development environments.
• Spoken and written English with a commitment to learn French.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• You have a professional background in Electronic Engineering or Physics (or a related field) and have either:
  • a Masters 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.
• You have never had a CERN fellow or graduate contract before.

Additional Information :

Job closing date: 03.07.2026 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-September-2026

This position involves:

• Work during nights Sundays and official holidays.
• Work in Radiation Areas.
• Work during nights Sundays and official holidays when required by the needs of the Organization.

Job reference: EP-ESE-BEGRAP

Field of work: Electrical or Electronics Engineering

Benchmark job: 200050 - Electronics Engineer

Global Benefits

• A monthly stipend between 6372-7004 Swiss Francs per month (tax free) depending on your degree.
• 30 days of paid leave per year plus 2 weeks annual closure.
• Coverage by CERNs 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.

Overview of CERN - Discover a world where the impossible is made possible!

At CERN the European Organization for Nuclear Research we are pushing the frontiers of science and technology. Our groundbreaking work brings together not only physicists but also a diverse range of professionals from engineering technical scientific and administrative fields. Together we foster an environment where innovation and collaboration thrive.

Every day we face exciting new challenges and opportunities to contribute to cutting-edge research that shapes our understanding of the universe. We meet these challenges through the diverse perspectives within our teams ensuring every contribution is valued and driving our shared sense of inclusion and purpose. Diversity is a core value of CERN since its foundation and it remains central to our mission and continued success.

If you are ready to be part of a dynamic inclusive community pushing the boundaries of knowledge CERN is the place where your curiosity and skills can thrive. Be part of our mission to uncover what lies at the heart of the universe! TAKE PART!

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Remote Work :

No

Employment Type :

Full-time