NLP / LLM Researcher

Job Title: NLP / LLM Researcher

Job Ref: AICOS_Jobs_2025_09

Job Type: Full-time contract.

Job Location: Porto, Portugal.

Job Description and Responsibilities:

Fraunhofer Portugal AICOS is looking for a researcher interested in Natural Language Processing and Large Language Models to join the Intelligent Systems Group.

The job offer is focused on the following tasks:

• Implement Retrieval Augmented Generation (RAG) techniques for specific sensitive domains.
• Research and develop agentic AI use-cases.
• Research and develop text processing methods for information extraction, exploring NLP and LLMs.
• Research and develop Responsible AI methodologies related to the validation of LLMs and agentic AI results validation and robustness assessment.
• Employ and develop best practices of professional data science and machine learning.
• Write comprehensive reports on approaches tested and results obtained.
• Share your knowledge with others by giving talks and preparing research proposals, project deliverables, and scientific papers.

Academic Qualifications:

Academic Master’s degree in Computer Science and Engineering or similar.

Requirements:

• Excellent Python programming skills.
• Background knowledge in Machine Learning, NLP and LLMs.
• Expertise in programming with widespread AI Frameworks (e.g., Sklearn, TensorFlow, Keras, PyTorch).
• Excellent Portuguese and English communication skills (spoken and written).

We value:

• Experience in RAG and agentic AI.
• Motivation to work in a multidisciplinary environment.
• Ability to work in cross-functional teams.
• Self-motivated, driving for results, and team player.
• Flexible and quick learner.
• Problem-solving, proactive, and critical thinking attitude.

Why should you join Fraunhofer Portugal:

• Innovative Environment: Be part of a people-centric workplace that fosters creativity and out-of-the-box thinking. We encourage the development of new ideas and ensure that every voice is heard.
• Research with Impact: Engage in projects that sit at the intersection of research and real-world applications, contributing to technology that makes a tangible difference in society.
• Multidisciplinary Teams: Collaborate with professionals from diverse backgrounds, enhancing your learning and professional growth.
• Professional Excellence: Work within a culture that upholds professional standards and best practices, promoting continuous improvement and excellence in research.
• Flexible Work Arrangements: Benefit from flexible working hours and opportunities to work from home, supporting a healthy work-life balance;
• Comprehensive Benefits: Benefit from a partially funded health insurance plan, and a variety of additional perks;
• Supportive Culture: Join a team with an excellent spirit, where collaboration, mutual support, and team achievements are celebrated.

Application Process:

Applications are permanently open until the ideal candidate is selected.

The selected candidate is expected to start working in July 2025.

To Apply:

Send your application via Fraunhofer Portugal Website (including your Curriculum Vitae) – Mandatory.

Observation:

The research activities in the scope of this job opportunity are planned to be developed within the framework of the following projects:

• NextGenAI – Center for Responsible AI, with Notice No. 01/C05-i01/2021 and Project Reference No. 62 - C645008882-00000055.

Job Type: Full-time

Application Deadline: 20/06/2025
Expected Start Date: 01/07/2025