Summary: This role involves joining a cryptography research team to design and implement advanced cryptographic protocols, emphasizing practical and experimental aspects. Highlights: 1. Join a cryptography research team focused on advanced protocol design. 2. Contribute to practical and experimental aspects of cryptographic protocols. 3. Work in a dynamic and stimulating research environment. IMDEA Software Institute, Madrid, Spain The IMDEA Software Institute invites applications for a research internship in cryptography. The successful applicant will join the cryptography research team and contribute to the design and implementation of advanced cryptographic protocols, with an emphasis on practical and experimental aspects. ### **Who should apply?** Required qualifications: * BSc or MSc in Computer Science, Mathematics or a closely related field (completed or currently enrolled). * Programming experience in C and Python (links to contributed projects, e.g., open\-source repositories, are welcome in your CV). * Familiarity with cryptography (e.g., through university\-level coursework or equivalent experience). * Foundations in algorithms and mathematics. Desirable Qualifications: * Ability to read and understand cryptography research papers. * Prior experience implementing mathematical algorithms or cryptographic protocols (in particular zero\-knowledge proofs and fully homomorphic encryption). * Knowledge of computer architecture and microarchitecture (in particular, how they affect software performance), and software optimization techniques. ### **Working at IMDEA Software** Ranked among the top research institutes in Europe in computer science, the IMDEA Software Institute offers a dynamic and stimulating research environment located in the Montegancedo Science and Technology Park. Set against the backdrop of Madrid’s vibrant cityscape, the institute provides an internationally competitive salary, flexible work schedule, access to excellent public healthcare, full social security benefits (including unemployment and retirement), and support for research\-related travel. English is the primary working language, and knowledge of Spanish is not required. ### **Dates** The internship is intended to last approximately 6 months, starting in Spring 2026, with some flexibility in both the starting date and the duration. ### **How to apply?** Applicants interested in the position should submit their application at https://careers.software.imdea.org/ using reference code **2026\-01\-intern\-verifhe**. Deadline for applications is **February 20th, 2026**. Review of applications will begin immediately. The recruitment process will comply with the IMDEA Software Institute’s OTM\-R Policy (Open, Transparent and Merit\-based Recruitment). For enquiries about the position, please contact: Dario Fiore