Research Assistant - Entangled Photon Source Development for Quantum Space Applications (Open)

We are currently accepting applications for the above-mentioned position. This opportunity is aimed at motivated candidates with strong technical skills in optics and photonics who wish to contribute to the development of an entangled-photon source within the Quantum Nanophotonics Laboratory at the Centro de Física de Materiales (CFM, CSIC–UPV/EHU) and the Donostia International Physics Center (DIPC). The position is part of an active experimental effort focused on building and validating a robust quantum light source for future integration in a satellite platform.

In this position, you will provide technical and experimental support for the design, assembly, and characterization of an entangled photon source based on spontaneous parametric down-conversion in nonlinear crystals. The work involves assisting with optical alignment, optomechanical integration, setup optimization, and implementation of stable measurement routines for single-photon and coincidence detection. You will contribute to the daily operation of the experimental platform, including handling and integration of optical components, lasers, detectors, and control electronics. You will support experimental testing aimed at evaluating key performance metrics such as photon-pair generation rates, coincidence efficiency, polarization entanglement quality, and long-term stability. You will also assist with troubleshooting, documenting procedures, maintaining the setup, and improving reliability for extended measurement campaigns. The role includes supporting automation and data acquisition tasks through scripting and basic software tools, helping streamline experimental workflows and ensure reproducible performance. You will work closely with researchers in the Quantum Nanophotonics Laboratory and contribute to a collaborative, hands-on research environment.

The ideal candidate holds a Master’s degree in Physics, Photonics, Engineering, or an equivalent qualification, with a strong background in optics and experimental photonics. Knowledge of quantum optics, including the generation and measurement of photonic quantum states (such as entangled photon pairs), is highly desirable. Experience with optical alignment, optomechanical setups, laboratory instrumentation, and laser safety practices is expected. Familiarity with single-photon detectors, coincidence counting electronics, polarization optics, and basic characterization techniques is a plus.

Programming skills for laboratory automation and data analysis (Python, MATLAB, or similar) are valued, as well as the ability to work carefully and independently in a complex experimental environment. Strong organizational skills, attention to detail, and good communication in English are essential to collaborate effectively with the research team.

• Estimated annual gross salary: Salary is commensurate with qualifications and consistent with our pay scales
• Target start date: 2026/02/11

We provide a highly stimulating research environment, and unique professional career development opportunities.

We offer and promote a diverse and inclusive environment and welcomes applicants regardless of age, disability, gender, nationality, ethnicity, religion, sexual orientation or gender identity.

The Quantum Nanophotonics at the Materials Physics Centre Laboratory is led by Ikerbasque Research Professor Gabriel Molina-Terriza. We are a team of scientists studying the interactions of quantum light and matter at the nanoscale. We explore single photon states, entangled photons, and squeezed states of light interacting with nanostructures.

Interested candidates should submit an updated CV and a brief statement of interest to the following application email below. 

Reference letters are welcome but not indispensable.

The reference of the specific opening to which the candidate is applying should be stated in the subject line, and the application must be received before the application deadline.

Although candidates are welcome to contact the project supervisors to know further details about the proposed research activity, please be aware that the application will be evaluated only if it is submitted directly to the email address listed below as application email.

• Reference: 2026/09
• Application deadline: 2026/02/05
• Application email: jobs.research@dipc.org

Applications received by the deadline will be evaluated by a Committee designed by the DIPC board on the basis of the following criteria:

• CV of the candidate (60%)
• Adequacy of the candidate’s scientific background to the project (20%)
• Reference letters (10%)
• Other: Diversity in gender, race, nationality, etc. (10%)

Evaluation results will be communicated to the candidates soon after. Positions will only be filled if qualified candidates are found.

The DIPC may revoke its decision if the candidate fails to join by the appointed time, in which case the position will be awarded to the candidate with the next highest score, provided it is above 50 (out of 100).

However, the selected candidate may keep the position if, in the opinion of the Selection Committee, the candidate duly justifies the reasons why he or she cannot join before the specified deadline, and as long as the project allows it.

Financiado por la Unión Europea – NextGenerationEU, a través del Plan de Recuperación, Transformación y Resiliencia (PRTR), Componente 16 (C16), actuación ‘Hub de Comunicaciones Cuánticas’