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Principal Researcher in Photonics (PhD) – Tarranix Project

Barcelona (Hospitalet de Llobregat), some travel required (expenses covered)

Fixed-term R&D project contract (12 - 24 months, with possibility of extension)

Full-time – 40 h/week

On site 100%

About the project

TARRANIX is a cutting-edge R&D initiative focused on developing next-generation photonic integrated circuits (PICs) for sustainable photonic computing. The project combines nanofabrication, photonic design, computing and photonics within a multidisciplinary team of physicists, engineers, and material scientists.

Your mission

As Principal Researcher in Photonics, you will take on the scientific leadership of the design and validation of the 3D optical transistor and its multilevel logic gates. You will be responsible for ensuring the scientific coherence and technological feasibility of the project, coordinating simulation and experimental teams.

Key responsibilities

  • Lead the theoretical design of the photonic transistor and its polarization architectures.

  • Develop advanced optical simulations using Lumerical FDTD, ANSYS, and COMSOL Multiphysics.

  • Experimentally validate results through optical testing and birefringence and dispersion characterization.

  • Coordinate the integration of photonic materials (SiN, GaAs, graphene, silicon nitride) into the design workflow.

  • Supervise the theoretical–experimental correlation phases and develop predictive models.

  • Contribute to scientific publications and patent applications.

  • Collaborate in the planning of optical tests in laboratories and cleanroom environments linked to the project.

Requirements

  • PhD in Photonics, Applied Physics, Optoelectronic Engineering, or related fields.

  • Over 5 years of experience in research and development of integrated photonic devices.

  • Proficiency in simulation tools (Lumerical, COMSOL, MATLAB, Python).

  • Proven experience in leading R&D projects and multidisciplinary teams.

  • Excellent scientific communication and technical writing skills.

Position details

  • Competitive salary: 20.000 € gross anual for grade, 25.000 € for Msc+grade, 30.000 € for grade+Msc+Phd

  • 10% Bonus by objectives. Private fitness center and other amenities.

  • Access to advanced research infrastructure and external cleanroom laboratories.

  • Participation in an international, interdisciplinary research environment.

  • Opportunities for professional growth and scientific contribution in a pioneering photonics project.

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