Your responsibilities

We are seeking an AI/ML Engineer for Zenodo, the world's largest general-purpose research repository.

As a successful candidate you will design, develop, and deploy intelligent automation tools that enhance large-scale research repositories. Your role will involve building and optimising machine learning models for information extraction, classification, and validation, as well as integrating them into production-grade infrastructure. You will contribute to creating human-in-the-loop AI agents that support metadata generation, curation, and quality assurance, ensuring transparency, scalability, and efficiency. Finally you will collaborate with cross-functional teams on model evaluation, infrastructure deployment, and user-interface interface development, with a focus on solutions that advance open science and FAIR data practices.

Your profile

Skills:

• Machine learning expertise: experience with evaluating models for text extraction, classification, and information retrieval, as well as practical knowledge of using, integrating, and optimising open-source LLMs.
• Software engineering: strong programming skills in Python and experience with open-source ML/AI agent frameworks.
• Data processing & pipelines: ability to design scalable data pipelines and work with heterogeneous datasets.
• Infrastructure & deployment: familiarity with containerised environments (Docker, Kubernetes/OpenShift) and deployment automation (Helm charts).
• Communication and collaboration skills: ability to communicate clearly and work in multidisciplinary teams and contribute to open-source projects.
• Spoken and written English, with a commitment to learn French.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• By the application deadline, you have a maximum of two years of professional experience since graduation in Software engineering and data science (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree.
• You have never had a CERN fellow or graduate contract before.
• Applicants without University degree are not eligible.
• Applicants with a PhD are not eligible.

Additional Information

Job closing date: 10.10.2025 at 23:59 CEST.

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

Working hours: 40 hours per week

Target start date: 01-November-2025

Job reference: IT-CA-OSI-2025-191-GRAE

Field of work: Software Engineering and IT

What we offer

• A monthly stipend ranging between 5196 and 5716 Swiss Francs (net of tax).
• Coverage by CERN's comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
• Depending on your individual circumstances: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract.
• 30 days of paid leave per year.
• On-the-job and formal training at CERN as well as in-house language courses for English and/or French.

About us

At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world's largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature. Find out more on http://home.cern.

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.